From 380d7ae0fbbd635398c631abea5dbf32cda2d452 Mon Sep 17 00:00:00 2001
From: Dipam Sen <funplanet.m4f@gmail.com>
Date: Mon, 11 Jul 2022 11:23:27 +0530
Subject: [PATCH 1/9] 2.1 hosting static files

---
 module2/01_hosting_static_files/index.js      |   5 +
 .../01_hosting_static_files/package-lock.json | 358 ++++++++++++++++++
 module2/01_hosting_static_files/package.json  |  19 +
 .../01_hosting_static_files/public/index.html |  13 +
 4 files changed, 395 insertions(+)
 create mode 100644 module2/01_hosting_static_files/index.js
 create mode 100644 module2/01_hosting_static_files/package-lock.json
 create mode 100644 module2/01_hosting_static_files/package.json
 create mode 100644 module2/01_hosting_static_files/public/index.html

diff --git a/module2/01_hosting_static_files/index.js b/module2/01_hosting_static_files/index.js
new file mode 100644
index 0000000..1272224
--- /dev/null
+++ b/module2/01_hosting_static_files/index.js
@@ -0,0 +1,5 @@
+const express = require('express');
+
+const app = express();
+app.listen(3000, () => console.log('listening at 3000'));
+app.use(express.static('public'));
diff --git a/module2/01_hosting_static_files/package-lock.json b/module2/01_hosting_static_files/package-lock.json
new file mode 100644
index 0000000..029ca51
--- /dev/null
+++ b/module2/01_hosting_static_files/package-lock.json
@@ -0,0 +1,358 @@
+{
+  "name": "module2_exercise1",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "accepts": {
+      "version": "1.3.5",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+      "requires": {
+        "mime-types": "~2.1.18",
+        "negotiator": "0.6.1"
+      }
+    },
+    "array-flatten": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+    },
+    "body-parser": {
+      "version": "1.18.3",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
+      "integrity": "sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=",
+      "requires": {
+        "bytes": "3.0.0",
+        "content-type": "~1.0.4",
+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "http-errors": "~1.6.3",
+        "iconv-lite": "0.4.23",
+        "on-finished": "~2.3.0",
+        "qs": "6.5.2",
+        "raw-body": "2.3.3",
+        "type-is": "~1.6.16"
+      }
+    },
+    "bytes": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
+      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
+    },
+    "content-disposition": {
+      "version": "0.5.2",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
+      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
+    },
+    "content-type": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.4.tgz",
+      "integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA=="
+    },
+    "cookie": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
+      "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s="
+    },
+    "cookie-signature": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
+      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
+    },
+    "debug": {
+      "version": "2.6.9",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+      "requires": {
+        "ms": "2.0.0"
+      }
+    },
+    "depd": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz",
+      "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak="
+    },
+    "destroy": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
+      "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
+    },
+    "ee-first": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
+      "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
+    },
+    "encodeurl": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
+      "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
+    },
+    "escape-html": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
+      "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg="
+    },
+    "etag": {
+      "version": "1.8.1",
+      "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
+      "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
+    },
+    "express": {
+      "version": "4.16.4",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.16.4.tgz",
+      "integrity": "sha512-j12Uuyb4FMrd/qQAm6uCHAkPtO8FDTRJZBDd5D2KOL2eLaz1yUNdUB/NOIyq0iU4q4cFarsUCrnFDPBcnksuOg==",
+      "requires": {
+        "accepts": "~1.3.5",
+        "array-flatten": "1.1.1",
+        "body-parser": "1.18.3",
+        "content-disposition": "0.5.2",
+        "content-type": "~1.0.4",
+        "cookie": "0.3.1",
+        "cookie-signature": "1.0.6",
+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "finalhandler": "1.1.1",
+        "fresh": "0.5.2",
+        "merge-descriptors": "1.0.1",
+        "methods": "~1.1.2",
+        "on-finished": "~2.3.0",
+        "parseurl": "~1.3.2",
+        "path-to-regexp": "0.1.7",
+        "proxy-addr": "~2.0.4",
+        "qs": "6.5.2",
+        "range-parser": "~1.2.0",
+        "safe-buffer": "5.1.2",
+        "send": "0.16.2",
+        "serve-static": "1.13.2",
+        "setprototypeof": "1.1.0",
+        "statuses": "~1.4.0",
+        "type-is": "~1.6.16",
+        "utils-merge": "1.0.1",
+        "vary": "~1.1.2"
+      }
+    },
+    "finalhandler": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
+      "integrity": "sha512-Y1GUDo39ez4aHAw7MysnUD5JzYX+WaIj8I57kO3aEPT1fFRL4sr7mjei97FgnwhAyyzRYmQZaTHb2+9uZ1dPtg==",
+      "requires": {
+        "debug": "2.6.9",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "on-finished": "~2.3.0",
+        "parseurl": "~1.3.2",
+        "statuses": "~1.4.0",
+        "unpipe": "~1.0.0"
+      }
+    },
+    "forwarded": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.1.2.tgz",
+      "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ="
+    },
+    "fresh": {
+      "version": "0.5.2",
+      "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
+      "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
+    },
+    "http-errors": {
+      "version": "1.6.3",
+      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
+      "integrity": "sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=",
+      "requires": {
+        "depd": "~1.1.2",
+        "inherits": "2.0.3",
+        "setprototypeof": "1.1.0",
+        "statuses": ">= 1.4.0 < 2"
+      }
+    },
+    "iconv-lite": {
+      "version": "0.4.23",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.23.tgz",
+      "integrity": "sha512-neyTUVFtahjf0mB3dZT77u+8O0QB89jFdnBkd5P1JgYPbPaia3gXXOVL2fq8VyU2gMMD7SaN7QukTB/pmXYvDA==",
+      "requires": {
+        "safer-buffer": ">= 2.1.2 < 3"
+      }
+    },
+    "inherits": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+      "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
+    },
+    "ipaddr.js": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.8.0.tgz",
+      "integrity": "sha1-6qM9bd16zo9/b+DJygRA5wZzix4="
+    },
+    "media-typer": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
+      "integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
+    },
+    "merge-descriptors": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
+      "integrity": "sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E="
+    },
+    "methods": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
+      "integrity": "sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4="
+    },
+    "mime": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/mime/-/mime-1.4.1.tgz",
+      "integrity": "sha512-KI1+qOZu5DcW6wayYHSzR/tXKCDC5Om4s1z2QJjDULzLcmf3DvzS7oluY4HCTrc+9FiKmWUgeNLg7W3uIQvxtQ=="
+    },
+    "mime-db": {
+      "version": "1.38.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.38.0.tgz",
+      "integrity": "sha512-bqVioMFFzc2awcdJZIzR3HjZFX20QhilVS7hytkKrv7xFAn8bM1gzc/FOX2awLISvWe0PV8ptFKcon+wZ5qYkg=="
+    },
+    "mime-types": {
+      "version": "2.1.22",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.22.tgz",
+      "integrity": "sha512-aGl6TZGnhm/li6F7yx82bJiBZwgiEa4Hf6CNr8YO+r5UHr53tSTYZb102zyU50DOWWKeOv0uQLRL0/9EiKWCog==",
+      "requires": {
+        "mime-db": "~1.38.0"
+      }
+    },
+    "ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+    },
+    "negotiator": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.1.tgz",
+      "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk="
+    },
+    "on-finished": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
+      "integrity": "sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=",
+      "requires": {
+        "ee-first": "1.1.1"
+      }
+    },
+    "parseurl": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.2.tgz",
+      "integrity": "sha1-/CidTtiZMRlGDBViUyYs3I3mW/M="
+    },
+    "path-to-regexp": {
+      "version": "0.1.7",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
+      "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
+    },
+    "proxy-addr": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.4.tgz",
+      "integrity": "sha512-5erio2h9jp5CHGwcybmxmVqHmnCBZeewlfJ0pex+UW7Qny7OOZXTtH56TGNyBizkgiOwhJtMKrVzDTeKcySZwA==",
+      "requires": {
+        "forwarded": "~0.1.2",
+        "ipaddr.js": "1.8.0"
+      }
+    },
+    "qs": {
+      "version": "6.5.2",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
+      "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
+    },
+    "range-parser": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.0.tgz",
+      "integrity": "sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4="
+    },
+    "raw-body": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.3.3.tgz",
+      "integrity": "sha512-9esiElv1BrZoI3rCDuOuKCBRbuApGGaDPQfjSflGxdy4oyzqghxu6klEkkVIvBje+FF0BX9coEv8KqW6X/7njw==",
+      "requires": {
+        "bytes": "3.0.0",
+        "http-errors": "1.6.3",
+        "iconv-lite": "0.4.23",
+        "unpipe": "1.0.0"
+      }
+    },
+    "safe-buffer": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+    },
+    "safer-buffer": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
+      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
+    },
+    "send": {
+      "version": "0.16.2",
+      "resolved": "https://registry.npmjs.org/send/-/send-0.16.2.tgz",
+      "integrity": "sha512-E64YFPUssFHEFBvpbbjr44NCLtI1AohxQ8ZSiJjQLskAdKuriYEP6VyGEsRDH8ScozGpkaX1BGvhanqCwkcEZw==",
+      "requires": {
+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "destroy": "~1.0.4",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "fresh": "0.5.2",
+        "http-errors": "~1.6.2",
+        "mime": "1.4.1",
+        "ms": "2.0.0",
+        "on-finished": "~2.3.0",
+        "range-parser": "~1.2.0",
+        "statuses": "~1.4.0"
+      }
+    },
+    "serve-static": {
+      "version": "1.13.2",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.13.2.tgz",
+      "integrity": "sha512-p/tdJrO4U387R9oMjb1oj7qSMaMfmOyd4j9hOFoxZe2baQszgHcSWjuya/CiT5kgZZKRudHNOA0pYXOl8rQ5nw==",
+      "requires": {
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.2",
+        "send": "0.16.2"
+      }
+    },
+    "setprototypeof": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.0.tgz",
+      "integrity": "sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ=="
+    },
+    "statuses": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.4.0.tgz",
+      "integrity": "sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew=="
+    },
+    "type-is": {
+      "version": "1.6.16",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
+      "integrity": "sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==",
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.18"
+      }
+    },
+    "unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+    },
+    "utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
+    "vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+    }
+  }
+}
diff --git a/module2/01_hosting_static_files/package.json b/module2/01_hosting_static_files/package.json
new file mode 100644
index 0000000..2b8ce15
--- /dev/null
+++ b/module2/01_hosting_static_files/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "module2_exercise1",
+  "version": "1.0.0",
+  "description": "Serving two pages.",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "example",
+    "data",
+    "selfie"
+  ],
+  "author": "Daniel Shiffman",
+  "license": "MIT",
+  "dependencies": {
+    "express": "^4.16.4"
+  }
+}
diff --git a/module2/01_hosting_static_files/public/index.html b/module2/01_hosting_static_files/public/index.html
new file mode 100644
index 0000000..b79eb34
--- /dev/null
+++ b/module2/01_hosting_static_files/public/index.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <title>Hello</title>
+  </head>
+  <body>
+    <h1>Data Selfie App</h1>
+    <p>Hello!</p>
+  </body>
+</html>

From 653f5322dfb1f866ead6c48ceeb1f1b094bb6828 Mon Sep 17 00:00:00 2001
From: Dipam Sen <funplanet.m4f@gmail.com>
Date: Tue, 12 Jul 2022 13:40:16 +0530
Subject: [PATCH 2/9] create module examples

---
 module2/02_geolocation_api/index.js           |   5 +
 module2/02_geolocation_api/package-lock.json  | 358 ++++++++
 module2/02_geolocation_api/package.json       |  19 +
 module2/02_geolocation_api/public/index.html  |  31 +
 module2/03_post_request/index.js              |  17 +
 module2/03_post_request/package-lock.json     | 823 ++++++++++++++++++
 module2/03_post_request/package.json          |  19 +
 module2/03_post_request/public/index.html     |  43 +
 .../index.js                                  |   0
 .../package-lock.json                         |   0
 .../package.json                              |   0
 .../04_saving_to_database/public/index.html   |  47 +
 module2/exercise_05_text_file/database.txt    |   4 +
 module2/exercise_05_text_file/index.js        |  37 +
 .../exercise_05_text_file/package-lock.json   | 823 ++++++++++++++++++
 module2/exercise_05_text_file/package.json    |  19 +
 .../exercise_05_text_file/public/index.html   |  46 +
 module2/exercise_06_input_box/index.js        |  18 +
 .../exercise_06_input_box/package-lock.json   | 422 +++++++++
 module2/exercise_06_input_box/package.json    |  20 +
 .../public/index.html                         |   0
 .../index.js                                  |   0
 .../package-lock.json                         |   0
 .../package.json                              |   0
 .../public/index.html                         |   0
 .../public/logs/index.html                    |   0
 .../public/logs/logs.js                       |   0
 .../public/sketch.js                          |   0
 .../public/style.css                          |   0
 .../image_1558376232234.png                   | Bin
 .../image_1558376240358.png                   | Bin
 .../image_1558376266448.png                   | Bin
 .../image_1558376281197.png                   | Bin
 .../shiffman.db                               |   0
 .../drawings.db                               |   0
 .../index.js                                  |   0
 .../package-lock.json                         |   0
 .../package.json                              |   0
 .../public/index.html                         |   0
 .../public/logs/index.html                    |   0
 .../public/logs/logs.js                       |   0
 .../public/sketch.js                          |   0
 .../public/style.css                          |   0
 43 files changed, 2751 insertions(+)
 create mode 100644 module2/02_geolocation_api/index.js
 create mode 100644 module2/02_geolocation_api/package-lock.json
 create mode 100644 module2/02_geolocation_api/package.json
 create mode 100644 module2/02_geolocation_api/public/index.html
 create mode 100644 module2/03_post_request/index.js
 create mode 100644 module2/03_post_request/package-lock.json
 create mode 100644 module2/03_post_request/package.json
 create mode 100644 module2/03_post_request/public/index.html
 rename module2/{exercise_05_input_box => 04_saving_to_database}/index.js (100%)
 rename module2/{exercise_05_input_box => 04_saving_to_database}/package-lock.json (100%)
 rename module2/{exercise_05_input_box => 04_saving_to_database}/package.json (100%)
 create mode 100644 module2/04_saving_to_database/public/index.html
 create mode 100644 module2/exercise_05_text_file/database.txt
 create mode 100644 module2/exercise_05_text_file/index.js
 create mode 100644 module2/exercise_05_text_file/package-lock.json
 create mode 100644 module2/exercise_05_text_file/package.json
 create mode 100644 module2/exercise_05_text_file/public/index.html
 create mode 100644 module2/exercise_06_input_box/index.js
 create mode 100644 module2/exercise_06_input_box/package-lock.json
 create mode 100644 module2/exercise_06_input_box/package.json
 rename module2/{exercise_05_input_box => exercise_06_input_box}/public/index.html (100%)
 rename module2/{exercise_06_sorting => exercise_07_sorting}/index.js (100%)
 rename module2/{exercise_06_sorting => exercise_07_sorting}/package-lock.json (100%)
 rename module2/{exercise_06_sorting => exercise_07_sorting}/package.json (100%)
 rename module2/{exercise_06_sorting => exercise_07_sorting}/public/index.html (100%)
 rename module2/{exercise_06_sorting => exercise_07_sorting}/public/logs/index.html (100%)
 rename module2/{exercise_06_sorting => exercise_07_sorting}/public/logs/logs.js (100%)
 rename module2/{exercise_06_sorting => exercise_07_sorting}/public/sketch.js (100%)
 rename module2/{exercise_06_sorting => exercise_07_sorting}/public/style.css (100%)
 rename module2/{exercise_07_save_files => exercise_08_save_files}/image_1558376232234.png (100%)
 rename module2/{exercise_07_save_files => exercise_08_save_files}/image_1558376240358.png (100%)
 rename module2/{exercise_07_save_files => exercise_08_save_files}/image_1558376266448.png (100%)
 rename module2/{exercise_07_save_files => exercise_08_save_files}/image_1558376281197.png (100%)
 rename module2/{exercise_07_save_files => exercise_08_save_files}/shiffman.db (100%)
 rename module2/{exercise_08_p5_drawings => exercise_09_p5_drawings}/drawings.db (100%)
 rename module2/{exercise_08_p5_drawings => exercise_09_p5_drawings}/index.js (100%)
 rename module2/{exercise_08_p5_drawings => exercise_09_p5_drawings}/package-lock.json (100%)
 rename module2/{exercise_08_p5_drawings => exercise_09_p5_drawings}/package.json (100%)
 rename module2/{exercise_08_p5_drawings => exercise_09_p5_drawings}/public/index.html (100%)
 rename module2/{exercise_08_p5_drawings => exercise_09_p5_drawings}/public/logs/index.html (100%)
 rename module2/{exercise_08_p5_drawings => exercise_09_p5_drawings}/public/logs/logs.js (100%)
 rename module2/{exercise_08_p5_drawings => exercise_09_p5_drawings}/public/sketch.js (100%)
 rename module2/{exercise_08_p5_drawings => exercise_09_p5_drawings}/public/style.css (100%)

diff --git a/module2/02_geolocation_api/index.js b/module2/02_geolocation_api/index.js
new file mode 100644
index 0000000..1272224
--- /dev/null
+++ b/module2/02_geolocation_api/index.js
@@ -0,0 +1,5 @@
+const express = require('express');
+
+const app = express();
+app.listen(3000, () => console.log('listening at 3000'));
+app.use(express.static('public'));
diff --git a/module2/02_geolocation_api/package-lock.json b/module2/02_geolocation_api/package-lock.json
new file mode 100644
index 0000000..029ca51
--- /dev/null
+++ b/module2/02_geolocation_api/package-lock.json
@@ -0,0 +1,358 @@
+{
+  "name": "module2_exercise1",
+  "version": "1.0.0",
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+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.18"
+      }
+    },
+    "unpipe": {
+      "version": "1.0.0",
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+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
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diff --git a/module2/02_geolocation_api/package.json b/module2/02_geolocation_api/package.json
new file mode 100644
index 0000000..2b8ce15
--- /dev/null
+++ b/module2/02_geolocation_api/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "module2_exercise1",
+  "version": "1.0.0",
+  "description": "Serving two pages.",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "example",
+    "data",
+    "selfie"
+  ],
+  "author": "Daniel Shiffman",
+  "license": "MIT",
+  "dependencies": {
+    "express": "^4.16.4"
+  }
+}
diff --git a/module2/02_geolocation_api/public/index.html b/module2/02_geolocation_api/public/index.html
new file mode 100644
index 0000000..b41e70c
--- /dev/null
+++ b/module2/02_geolocation_api/public/index.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <title>Data Selfie App</title>
+  </head>
+  <body>
+    <script>
+      if ("geolocation" in navigator) {
+        console.log("geolocation available");
+        navigator.geolocation.getCurrentPosition((position) => {
+          const lat = position.coords.latitude;
+          const lon = position.coords.longitude;
+          document.getElementById("latitude").textContent = lat;
+          document.getElementById("longitude").textContent = lon;
+          // console.log(position);
+        });
+      } else {
+        console.log("geolocation not available");
+      }
+    </script>
+
+    <h1>Data Selfie App</h1>
+    <p>
+      latitude: <span id="latitude"></span>&deg;<br />
+      longitude: <span id="longitude"></span>&deg;
+    </p>
+  </body>
+</html>
diff --git a/module2/03_post_request/index.js b/module2/03_post_request/index.js
new file mode 100644
index 0000000..d5e0358
--- /dev/null
+++ b/module2/03_post_request/index.js
@@ -0,0 +1,17 @@
+const express = require("express");
+
+const app = express();
+app.listen(3000, () => console.log("listening at 3000"));
+app.use(express.static("public"));
+app.use(express.json({ limit: "1mb" }));
+
+app.post("/api", (request, response) => {
+  console.log("I got a request!");
+  console.log(request.body);
+  const data = request.body;
+  response.json({
+    status: "success",
+    latitude: data.lat,
+    longitude: data.lon,
+  });
+});
diff --git a/module2/03_post_request/package-lock.json b/module2/03_post_request/package-lock.json
new file mode 100644
index 0000000..37e3f32
--- /dev/null
+++ b/module2/03_post_request/package-lock.json
@@ -0,0 +1,823 @@
+{
+  "name": "module2_exercise1",
+  "version": "1.0.0",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
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+      "name": "module2_exercise1",
+      "version": "1.0.0",
+      "license": "MIT",
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+        "negotiator": "0.6.1"
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+      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+    },
+    "node_modules/body-parser": {
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+      "integrity": "sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=",
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+        "debug": "2.6.9",
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+        "qs": "6.5.2",
+        "raw-body": "2.3.3",
+        "type-is": "~1.6.16"
+      },
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+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
+    "vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+    }
+  }
+}
diff --git a/module2/03_post_request/package.json b/module2/03_post_request/package.json
new file mode 100644
index 0000000..2b8ce15
--- /dev/null
+++ b/module2/03_post_request/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "module2_exercise1",
+  "version": "1.0.0",
+  "description": "Serving two pages.",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "example",
+    "data",
+    "selfie"
+  ],
+  "author": "Daniel Shiffman",
+  "license": "MIT",
+  "dependencies": {
+    "express": "^4.16.4"
+  }
+}
diff --git a/module2/03_post_request/public/index.html b/module2/03_post_request/public/index.html
new file mode 100644
index 0000000..7ddb5a8
--- /dev/null
+++ b/module2/03_post_request/public/index.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <title>Data Selfie App</title>
+  </head>
+  <body>
+    <script>
+      if ("geolocation" in navigator) {
+        console.log("geolocation available");
+        navigator.geolocation.getCurrentPosition(async (position) => {
+          const lat = position.coords.latitude;
+          const lon = position.coords.longitude;
+          document.getElementById("latitude").textContent = lat;
+          document.getElementById("longitude").textContent = lon;
+          // console.log(position);
+
+          const data = { lat, lon };
+          const options = {
+            method: "POST",
+            headers: {
+              "Content-Type": "application/json",
+            },
+            body: JSON.stringify(data),
+          };
+          const response = await fetch("/api", options);
+          const json = await response.json();
+          console.log(json);
+        });
+      } else {
+        console.log("geolocation not available");
+      }
+    </script>
+
+    <h1>Data Selfie App</h1>
+    <p>
+      latitude: <span id="latitude"></span>&deg;<br />
+      longitude: <span id="longitude"></span>&deg;
+    </p>
+  </body>
+</html>
diff --git a/module2/exercise_05_input_box/index.js b/module2/04_saving_to_database/index.js
similarity index 100%
rename from module2/exercise_05_input_box/index.js
rename to module2/04_saving_to_database/index.js
diff --git a/module2/exercise_05_input_box/package-lock.json b/module2/04_saving_to_database/package-lock.json
similarity index 100%
rename from module2/exercise_05_input_box/package-lock.json
rename to module2/04_saving_to_database/package-lock.json
diff --git a/module2/exercise_05_input_box/package.json b/module2/04_saving_to_database/package.json
similarity index 100%
rename from module2/exercise_05_input_box/package.json
rename to module2/04_saving_to_database/package.json
diff --git a/module2/04_saving_to_database/public/index.html b/module2/04_saving_to_database/public/index.html
new file mode 100644
index 0000000..ff737d6
--- /dev/null
+++ b/module2/04_saving_to_database/public/index.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <title>Document</title>
+  </head>
+  <body>
+    <h1>Data Selfie App</h1>
+    <p>
+      latitude: <span id="latitude"></span>&deg;<br />
+      longitude: <span id="longitude"></span>&deg;
+    </p>
+
+    <button id="submit">submit</button>
+    <script>
+      let lat, lon;
+      const button = document.getElementById("submit");
+      button.addEventListener("click", async (event) => {
+        const data = { lat, lon };
+        const options = {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json",
+          },
+          body: JSON.stringify(data),
+        };
+        const response = await fetch("/api", options);
+        const json = await response.json();
+        console.log(json);
+      });
+
+      if ("geolocation" in navigator) {
+        console.log("geolocation available");
+        navigator.geolocation.getCurrentPosition(async (position) => {
+          lat = position.coords.latitude;
+          lon = position.coords.longitude;
+          document.getElementById("latitude").textContent = lat;
+          document.getElementById("longitude").textContent = lon;
+        });
+      } else {
+        console.log("geolocation not available");
+      }
+    </script>
+  </body>
+</html>
diff --git a/module2/exercise_05_text_file/database.txt b/module2/exercise_05_text_file/database.txt
new file mode 100644
index 0000000..e815d57
--- /dev/null
+++ b/module2/exercise_05_text_file/database.txt
@@ -0,0 +1,4 @@
+{"lat":40.7296101,"lon":-73.9937911}
+{"lat":40.7296101,"lon":-73.9937911}
+{"lat":40.7296101,"lon":-73.9937911}
+{"lat":40.7296101,"lon":-73.9937911}
diff --git a/module2/exercise_05_text_file/index.js b/module2/exercise_05_text_file/index.js
new file mode 100644
index 0000000..3ce3f5e
--- /dev/null
+++ b/module2/exercise_05_text_file/index.js
@@ -0,0 +1,37 @@
+const express = require("express");
+const fs = require("fs");
+
+const app = express();
+app.listen(3000, () => console.log("listening at 3000"));
+app.use(express.static("public"));
+app.use(express.json({ limit: "1mb" }));
+
+clearDatabase();
+
+app.post("/api", (request, response) => {
+  const data = request.body;
+  saveToDatabase(data);
+  const allData = getDatabase();
+  response.json(allData);
+  console.log(allData);
+});
+
+function getDatabase() {
+  const rawData = fs.readFileSync("database.txt").toString().trim();
+  const lines = rawData.split("\n");
+  const allData = [];
+  for (const line of lines) {
+    const data = JSON.parse(line);
+    allData.push(data);
+  }
+  return allData;
+}
+
+function saveToDatabase(data) {
+  const dataString = JSON.stringify(data);
+  fs.appendFileSync("database.txt", dataString + "\n");
+}
+
+function clearDatabase() {
+  fs.writeFileSync("database.txt", "");
+}
diff --git a/module2/exercise_05_text_file/package-lock.json b/module2/exercise_05_text_file/package-lock.json
new file mode 100644
index 0000000..f9e079b
--- /dev/null
+++ b/module2/exercise_05_text_file/package-lock.json
@@ -0,0 +1,823 @@
+{
+  "name": "module2_exercise_04",
+  "version": "1.0.0",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "module2_exercise_04",
+      "version": "1.0.0",
+      "license": "MIT",
+      "dependencies": {
+        "express": "^4.16.4"
+      }
+    },
+    "node_modules/accepts": {
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+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+      "dependencies": {
+        "mime-types": "~2.1.18",
+        "negotiator": "0.6.1"
+      },
+      "engines": {
+        "node": ">= 0.6"
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+    },
+    "node_modules/array-flatten": {
+      "version": "1.1.1",
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+      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+    },
+    "node_modules/body-parser": {
+      "version": "1.18.3",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
+      "integrity": "sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=",
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+        "content-type": "~1.0.4",
+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "http-errors": "~1.6.3",
+        "iconv-lite": "0.4.23",
+        "on-finished": "~2.3.0",
+        "qs": "6.5.2",
+        "raw-body": "2.3.3",
+        "type-is": "~1.6.16"
+      },
+      "engines": {
+        "node": ">= 0.8"
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+    },
+    "node_modules/bytes": {
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+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
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+}
diff --git a/module2/exercise_05_text_file/package.json b/module2/exercise_05_text_file/package.json
new file mode 100644
index 0000000..693ea41
--- /dev/null
+++ b/module2/exercise_05_text_file/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "module2_exercise_04",
+  "version": "1.0.0",
+  "description": "This is the data selfie app by Joey Lee.",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "example",
+    "data",
+    "selfie"
+  ],
+  "author": "Daniel Shiffman",
+  "license": "MIT",
+  "dependencies": {
+    "express": "^4.16.4"
+  }
+}
diff --git a/module2/exercise_05_text_file/public/index.html b/module2/exercise_05_text_file/public/index.html
new file mode 100644
index 0000000..2b178c3
--- /dev/null
+++ b/module2/exercise_05_text_file/public/index.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <title>Document</title>
+  </head>
+  <body>
+    <h1>Data Selfie App</h1>
+    <p>
+      latitude: <span id="latitude"></span>&deg;<br />
+      longitude: <span id="longitude"></span>&deg;
+    </p>
+    <button id="submit">submit</button>
+    <script>
+      let lat, lon;
+      const button = document.getElementById("submit");
+      button.addEventListener("click", async (event) => {
+        const data = { lat, lon };
+        const options = {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json",
+          },
+          body: JSON.stringify(data),
+        };
+        const response = await fetch("/api", options);
+        const json = await response.json();
+        console.log(json);
+      });
+
+      if ("geolocation" in navigator) {
+        console.log("geolocation available");
+        navigator.geolocation.getCurrentPosition(async (position) => {
+          lat = position.coords.latitude;
+          lon = position.coords.longitude;
+          document.getElementById("latitude").textContent = lat;
+          document.getElementById("longitude").textContent = lon;
+        });
+      } else {
+        console.log("geolocation not available");
+      }
+    </script>
+  </body>
+</html>
diff --git a/module2/exercise_06_input_box/index.js b/module2/exercise_06_input_box/index.js
new file mode 100644
index 0000000..0db117a
--- /dev/null
+++ b/module2/exercise_06_input_box/index.js
@@ -0,0 +1,18 @@
+const express = require('express');
+const Datastore = require('nedb');
+
+const app = express();
+app.listen(3000, () => console.log('listening at 3000'));
+app.use(express.static('public'));
+app.use(express.json({ limit: '1mb' }));
+
+const database = new Datastore('database.db');
+database.loadDatabase();
+
+app.post('/api', (request, response) => {
+  const data = request.body;
+  const timestamp = Date.now();
+  data.timestamp = timestamp;
+  database.insert(data);
+  response.json(data);
+});
diff --git a/module2/exercise_06_input_box/package-lock.json b/module2/exercise_06_input_box/package-lock.json
new file mode 100644
index 0000000..706a923
--- /dev/null
+++ b/module2/exercise_06_input_box/package-lock.json
@@ -0,0 +1,422 @@
+{
+  "name": "module2_exercise_04",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
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+      "requires": {
+        "bytes": "3.0.0",
+        "http-errors": "1.6.3",
+        "iconv-lite": "0.4.23",
+        "unpipe": "1.0.0"
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+      "resolved": "https://registry.npmjs.org/send/-/send-0.16.2.tgz",
+      "integrity": "sha512-E64YFPUssFHEFBvpbbjr44NCLtI1AohxQ8ZSiJjQLskAdKuriYEP6VyGEsRDH8ScozGpkaX1BGvhanqCwkcEZw==",
+      "requires": {
+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "destroy": "~1.0.4",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "fresh": "0.5.2",
+        "http-errors": "~1.6.2",
+        "mime": "1.4.1",
+        "ms": "2.0.0",
+        "on-finished": "~2.3.0",
+        "range-parser": "~1.2.0",
+        "statuses": "~1.4.0"
+      }
+    },
+    "serve-static": {
+      "version": "1.13.2",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.13.2.tgz",
+      "integrity": "sha512-p/tdJrO4U387R9oMjb1oj7qSMaMfmOyd4j9hOFoxZe2baQszgHcSWjuya/CiT5kgZZKRudHNOA0pYXOl8rQ5nw==",
+      "requires": {
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.2",
+        "send": "0.16.2"
+      }
+    },
+    "setprototypeof": {
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+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.0.tgz",
+      "integrity": "sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ=="
+    },
+    "statuses": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.4.0.tgz",
+      "integrity": "sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew=="
+    },
+    "type-is": {
+      "version": "1.6.16",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
+      "integrity": "sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==",
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.18"
+      }
+    },
+    "underscore": {
+      "version": "1.4.4",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.4.4.tgz",
+      "integrity": "sha1-YaajIBBiKvoHljvzJSA88SI51gQ="
+    },
+    "unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+    },
+    "utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
+    "vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+    }
+  }
+}
diff --git a/module2/exercise_06_input_box/package.json b/module2/exercise_06_input_box/package.json
new file mode 100644
index 0000000..f1943ef
--- /dev/null
+++ b/module2/exercise_06_input_box/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "module2_exercise_05",
+  "version": "1.0.0",
+  "description": "This is the data selfie app by Joey Lee.",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "example",
+    "data",
+    "selfie"
+  ],
+  "author": "Daniel Shiffman",
+  "license": "MIT",
+  "dependencies": {
+    "express": "^4.16.4",
+    "nedb": "^1.8.0"
+  }
+}
diff --git a/module2/exercise_05_input_box/public/index.html b/module2/exercise_06_input_box/public/index.html
similarity index 100%
rename from module2/exercise_05_input_box/public/index.html
rename to module2/exercise_06_input_box/public/index.html
diff --git a/module2/exercise_06_sorting/index.js b/module2/exercise_07_sorting/index.js
similarity index 100%
rename from module2/exercise_06_sorting/index.js
rename to module2/exercise_07_sorting/index.js
diff --git a/module2/exercise_06_sorting/package-lock.json b/module2/exercise_07_sorting/package-lock.json
similarity index 100%
rename from module2/exercise_06_sorting/package-lock.json
rename to module2/exercise_07_sorting/package-lock.json
diff --git a/module2/exercise_06_sorting/package.json b/module2/exercise_07_sorting/package.json
similarity index 100%
rename from module2/exercise_06_sorting/package.json
rename to module2/exercise_07_sorting/package.json
diff --git a/module2/exercise_06_sorting/public/index.html b/module2/exercise_07_sorting/public/index.html
similarity index 100%
rename from module2/exercise_06_sorting/public/index.html
rename to module2/exercise_07_sorting/public/index.html
diff --git a/module2/exercise_06_sorting/public/logs/index.html b/module2/exercise_07_sorting/public/logs/index.html
similarity index 100%
rename from module2/exercise_06_sorting/public/logs/index.html
rename to module2/exercise_07_sorting/public/logs/index.html
diff --git a/module2/exercise_06_sorting/public/logs/logs.js b/module2/exercise_07_sorting/public/logs/logs.js
similarity index 100%
rename from module2/exercise_06_sorting/public/logs/logs.js
rename to module2/exercise_07_sorting/public/logs/logs.js
diff --git a/module2/exercise_06_sorting/public/sketch.js b/module2/exercise_07_sorting/public/sketch.js
similarity index 100%
rename from module2/exercise_06_sorting/public/sketch.js
rename to module2/exercise_07_sorting/public/sketch.js
diff --git a/module2/exercise_06_sorting/public/style.css b/module2/exercise_07_sorting/public/style.css
similarity index 100%
rename from module2/exercise_06_sorting/public/style.css
rename to module2/exercise_07_sorting/public/style.css
diff --git a/module2/exercise_07_save_files/image_1558376232234.png b/module2/exercise_08_save_files/image_1558376232234.png
similarity index 100%
rename from module2/exercise_07_save_files/image_1558376232234.png
rename to module2/exercise_08_save_files/image_1558376232234.png
diff --git a/module2/exercise_07_save_files/image_1558376240358.png b/module2/exercise_08_save_files/image_1558376240358.png
similarity index 100%
rename from module2/exercise_07_save_files/image_1558376240358.png
rename to module2/exercise_08_save_files/image_1558376240358.png
diff --git a/module2/exercise_07_save_files/image_1558376266448.png b/module2/exercise_08_save_files/image_1558376266448.png
similarity index 100%
rename from module2/exercise_07_save_files/image_1558376266448.png
rename to module2/exercise_08_save_files/image_1558376266448.png
diff --git a/module2/exercise_07_save_files/image_1558376281197.png b/module2/exercise_08_save_files/image_1558376281197.png
similarity index 100%
rename from module2/exercise_07_save_files/image_1558376281197.png
rename to module2/exercise_08_save_files/image_1558376281197.png
diff --git a/module2/exercise_07_save_files/shiffman.db b/module2/exercise_08_save_files/shiffman.db
similarity index 100%
rename from module2/exercise_07_save_files/shiffman.db
rename to module2/exercise_08_save_files/shiffman.db
diff --git a/module2/exercise_08_p5_drawings/drawings.db b/module2/exercise_09_p5_drawings/drawings.db
similarity index 100%
rename from module2/exercise_08_p5_drawings/drawings.db
rename to module2/exercise_09_p5_drawings/drawings.db
diff --git a/module2/exercise_08_p5_drawings/index.js b/module2/exercise_09_p5_drawings/index.js
similarity index 100%
rename from module2/exercise_08_p5_drawings/index.js
rename to module2/exercise_09_p5_drawings/index.js
diff --git a/module2/exercise_08_p5_drawings/package-lock.json b/module2/exercise_09_p5_drawings/package-lock.json
similarity index 100%
rename from module2/exercise_08_p5_drawings/package-lock.json
rename to module2/exercise_09_p5_drawings/package-lock.json
diff --git a/module2/exercise_08_p5_drawings/package.json b/module2/exercise_09_p5_drawings/package.json
similarity index 100%
rename from module2/exercise_08_p5_drawings/package.json
rename to module2/exercise_09_p5_drawings/package.json
diff --git a/module2/exercise_08_p5_drawings/public/index.html b/module2/exercise_09_p5_drawings/public/index.html
similarity index 100%
rename from module2/exercise_08_p5_drawings/public/index.html
rename to module2/exercise_09_p5_drawings/public/index.html
diff --git a/module2/exercise_08_p5_drawings/public/logs/index.html b/module2/exercise_09_p5_drawings/public/logs/index.html
similarity index 100%
rename from module2/exercise_08_p5_drawings/public/logs/index.html
rename to module2/exercise_09_p5_drawings/public/logs/index.html
diff --git a/module2/exercise_08_p5_drawings/public/logs/logs.js b/module2/exercise_09_p5_drawings/public/logs/logs.js
similarity index 100%
rename from module2/exercise_08_p5_drawings/public/logs/logs.js
rename to module2/exercise_09_p5_drawings/public/logs/logs.js
diff --git a/module2/exercise_08_p5_drawings/public/sketch.js b/module2/exercise_09_p5_drawings/public/sketch.js
similarity index 100%
rename from module2/exercise_08_p5_drawings/public/sketch.js
rename to module2/exercise_09_p5_drawings/public/sketch.js
diff --git a/module2/exercise_08_p5_drawings/public/style.css b/module2/exercise_09_p5_drawings/public/style.css
similarity index 100%
rename from module2/exercise_08_p5_drawings/public/style.css
rename to module2/exercise_09_p5_drawings/public/style.css

From c2f1ae3167886ea44ddcc1ba55e6c324148e022a Mon Sep 17 00:00:00 2001
From: Dipam Sen <funplanet.m4f@gmail.com>
Date: Tue, 12 Jul 2022 15:24:23 +0530
Subject: [PATCH 3/9] add examples for 2.5 2.6

---
 module2/05_querying_database/index.js         |  28 +
 .../05_querying_database/package-lock.json    | 956 ++++++++++++++++++
 module2/05_querying_database/package.json     |  20 +
 module2/05_querying_database/public/all.html  |  36 +
 .../05_querying_database/public/index.html    |  49 +
 module2/06_webcam/index.js                    |  28 +
 module2/06_webcam/package-lock.json           | 956 ++++++++++++++++++
 module2/06_webcam/package.json                |  20 +
 module2/06_webcam/public/all.html             |  40 +
 module2/06_webcam/public/index.html           |  61 ++
 10 files changed, 2194 insertions(+)
 create mode 100644 module2/05_querying_database/index.js
 create mode 100644 module2/05_querying_database/package-lock.json
 create mode 100644 module2/05_querying_database/package.json
 create mode 100644 module2/05_querying_database/public/all.html
 create mode 100644 module2/05_querying_database/public/index.html
 create mode 100644 module2/06_webcam/index.js
 create mode 100644 module2/06_webcam/package-lock.json
 create mode 100644 module2/06_webcam/package.json
 create mode 100644 module2/06_webcam/public/all.html
 create mode 100644 module2/06_webcam/public/index.html

diff --git a/module2/05_querying_database/index.js b/module2/05_querying_database/index.js
new file mode 100644
index 0000000..dd4b0b0
--- /dev/null
+++ b/module2/05_querying_database/index.js
@@ -0,0 +1,28 @@
+const express = require("express");
+const Datastore = require("nedb");
+
+const app = express();
+app.listen(3000, () => console.log("listening at 3000"));
+app.use(express.static("public"));
+app.use(express.json({ limit: "1mb" }));
+
+const database = new Datastore("database.db");
+database.loadDatabase();
+
+app.get("/api", (request, response) => {
+  database.find({}, (err, data) => {
+    if (err) {
+      response.end();
+      return;
+    }
+    response.send(data);
+  });
+});
+
+app.post("/api", (request, response) => {
+  const data = request.body;
+  const timestamp = Date.now();
+  data.timestamp = timestamp;
+  database.insert(data);
+  response.json(data);
+});
diff --git a/module2/05_querying_database/package-lock.json b/module2/05_querying_database/package-lock.json
new file mode 100644
index 0000000..e343fd9
--- /dev/null
+++ b/module2/05_querying_database/package-lock.json
@@ -0,0 +1,956 @@
+{
+  "name": "module2_exercise_05",
+  "version": "1.0.0",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "module2_exercise_05",
+      "version": "1.0.0",
+      "license": "MIT",
+      "dependencies": {
+        "express": "^4.16.4",
+        "nedb": "^1.8.0"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "1.3.5",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+      "dependencies": {
+        "mime-types": "~2.1.18",
+        "negotiator": "0.6.1"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/array-flatten": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+    },
+    "node_modules/async": {
+      "version": "0.2.10",
+      "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
+      "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
+    },
+    "node_modules/binary-search-tree": {
+      "version": "0.2.5",
+      "resolved": "https://registry.npmjs.org/binary-search-tree/-/binary-search-tree-0.2.5.tgz",
+      "integrity": "sha1-fbs7IQ/coIJFDa0jNMMErzm9x4Q=",
+      "dependencies": {
+        "underscore": "~1.4.4"
+      }
+    },
+    "node_modules/body-parser": {
+      "version": "1.18.3",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
+      "integrity": "sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=",
+      "dependencies": {
+        "bytes": "3.0.0",
+        "content-type": "~1.0.4",
+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "http-errors": "~1.6.3",
+        "iconv-lite": "0.4.23",
+        "on-finished": "~2.3.0",
+        "qs": "6.5.2",
+        "raw-body": "2.3.3",
+        "type-is": "~1.6.16"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/bytes": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
+      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/content-disposition": {
+      "version": "0.5.2",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
+      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ=",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/content-type": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.4.tgz",
+      "integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
+      "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s=",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie-signature": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
+      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
+    },
+    "node_modules/debug": {
+      "version": "2.6.9",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/depd": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz",
+      "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/destroy": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
+      "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
+    },
+    "node_modules/ee-first": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
+      "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
+    },
+    "node_modules/encodeurl": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
+      "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/escape-html": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
+      "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg="
+    },
+    "node_modules/etag": {
+      "version": "1.8.1",
+      "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
+      "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/express": {
+      "version": "4.16.4",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.16.4.tgz",
+      "integrity": "sha512-j12Uuyb4FMrd/qQAm6uCHAkPtO8FDTRJZBDd5D2KOL2eLaz1yUNdUB/NOIyq0iU4q4cFarsUCrnFDPBcnksuOg==",
+      "dependencies": {
+        "accepts": "~1.3.5",
+        "array-flatten": "1.1.1",
+        "body-parser": "1.18.3",
+        "content-disposition": "0.5.2",
+        "content-type": "~1.0.4",
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diff --git a/module2/05_querying_database/package.json b/module2/05_querying_database/package.json
new file mode 100644
index 0000000..f1943ef
--- /dev/null
+++ b/module2/05_querying_database/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "module2_exercise_05",
+  "version": "1.0.0",
+  "description": "This is the data selfie app by Joey Lee.",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "example",
+    "data",
+    "selfie"
+  ],
+  "author": "Daniel Shiffman",
+  "license": "MIT",
+  "dependencies": {
+    "express": "^4.16.4",
+    "nedb": "^1.8.0"
+  }
+}
diff --git a/module2/05_querying_database/public/all.html b/module2/05_querying_database/public/all.html
new file mode 100644
index 0000000..846e4da
--- /dev/null
+++ b/module2/05_querying_database/public/all.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <title>Document</title>
+  </head>
+  <body>
+    <h1>Data Selfie App</h1>
+
+    <script>
+      async function getData() {
+        const response = await fetch("/api");
+        const data = await response.json();
+
+        for (const item of data) {
+          const root = document.createElement("div");
+          const mood = document.createElement("div");
+          const geo = document.createElement("div");
+          const date = document.createElement("div");
+
+          mood.textContent = item.mood;
+          geo.textContent = `${item.lat}°, ${item.lon}°`;
+          date.textContent = new Date(item.timestamp).toLocaleString();
+
+          root.append(mood, geo, date);
+          document.body.append(root);
+        }
+        console.log(data);
+      }
+
+      getData();
+    </script>
+  </body>
+</html>
diff --git a/module2/05_querying_database/public/index.html b/module2/05_querying_database/public/index.html
new file mode 100644
index 0000000..c7bce66
--- /dev/null
+++ b/module2/05_querying_database/public/index.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <title>Document</title>
+  </head>
+  <body>
+    <h1>Data Selfie App</h1>
+    <p>
+      latitude: <span id="latitude"></span>&deg;<br />
+      longitude: <span id="longitude"></span>&deg;
+    </p>
+    <input id="mood" value="rainbow" />
+
+    <button id="submit">submit</button>
+    <script>
+      let lat, lon;
+      const button = document.getElementById("submit");
+      button.addEventListener("click", async (event) => {
+        const mood = document.getElementById("mood").value;
+        const data = { lat, lon, mood };
+        const options = {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json",
+          },
+          body: JSON.stringify(data),
+        };
+        const response = await fetch("/api", options);
+        const json = await response.json();
+        console.log(json);
+      });
+
+      if ("geolocation" in navigator) {
+        console.log("geolocation available");
+        navigator.geolocation.getCurrentPosition(async (position) => {
+          lat = position.coords.latitude;
+          lon = position.coords.longitude;
+          document.getElementById("latitude").textContent = lat;
+          document.getElementById("longitude").textContent = lon;
+        });
+      } else {
+        console.log("geolocation not available");
+      }
+    </script>
+  </body>
+</html>
diff --git a/module2/06_webcam/index.js b/module2/06_webcam/index.js
new file mode 100644
index 0000000..a499bab
--- /dev/null
+++ b/module2/06_webcam/index.js
@@ -0,0 +1,28 @@
+const express = require('express');
+const Datastore = require('nedb');
+
+const app = express();
+app.listen(3000, () => console.log('listening at 3000'));
+app.use(express.static('public'));
+app.use(express.json({ limit: '1mb' }));
+
+const database = new Datastore('database.db');
+database.loadDatabase();
+
+app.get('/api', (request, response) => {
+  database.find({}, (err, data) => {
+    if (err) {
+      response.end();
+      return;
+    }
+    response.json(data);
+  });
+});
+
+app.post('/api', (request, response) => {
+  const data = request.body;
+  const timestamp = Date.now();
+  data.timestamp = timestamp;
+  database.insert(data);
+  response.json(data);
+});
diff --git a/module2/06_webcam/package-lock.json b/module2/06_webcam/package-lock.json
new file mode 100644
index 0000000..e13b7ca
--- /dev/null
+++ b/module2/06_webcam/package-lock.json
@@ -0,0 +1,956 @@
+{
+  "name": "module2",
+  "version": "1.0.0",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
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+    },
+    "type-is": {
+      "version": "1.6.16",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
+      "integrity": "sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==",
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.18"
+      }
+    },
+    "underscore": {
+      "version": "1.4.4",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.4.4.tgz",
+      "integrity": "sha1-YaajIBBiKvoHljvzJSA88SI51gQ="
+    },
+    "unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+    },
+    "utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
+    "vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+    }
+  }
+}
diff --git a/module2/06_webcam/package.json b/module2/06_webcam/package.json
new file mode 100644
index 0000000..06a6119
--- /dev/null
+++ b/module2/06_webcam/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "module2",
+  "version": "1.0.0",
+  "description": "This is the data selfie app by Joey Lee.",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "example",
+    "data",
+    "selfie"
+  ],
+  "author": "Daniel Shiffman",
+  "license": "MIT",
+  "dependencies": {
+    "express": "^4.16.4",
+    "nedb": "^1.8.0"
+  }
+}
diff --git a/module2/06_webcam/public/all.html b/module2/06_webcam/public/all.html
new file mode 100644
index 0000000..67b0899
--- /dev/null
+++ b/module2/06_webcam/public/all.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <title>Document</title>
+  </head>
+  <body>
+    <h1>Data Selfie App</h1>
+    <div><a href="/">enter</a> | <a href="/all.html">list</a></div>
+
+    <script>
+      getData();
+
+      async function getData() {
+        const response = await fetch("/api");
+        const data = await response.json();
+
+        for (item of data) {
+          const root = document.createElement("p");
+          const mood = document.createElement("div");
+          const geo = document.createElement("div");
+          const date = document.createElement("div");
+          const image = document.createElement("img");
+
+          mood.textContent = `mood: ${item.mood}`;
+          geo.textContent = `${item.lat}°, ${item.lon}°`;
+          const dateString = new Date(item.timestamp).toLocaleString();
+          date.textContent = dateString;
+          image.src = item.image64;
+
+          root.append(mood, geo, date, image);
+          document.body.append(root);
+        }
+        console.log(data);
+      }
+    </script>
+  </body>
+</html>
diff --git a/module2/06_webcam/public/index.html b/module2/06_webcam/public/index.html
new file mode 100644
index 0000000..20e7146
--- /dev/null
+++ b/module2/06_webcam/public/index.html
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <title>Document</title>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.4.1/p5.js"></script>
+  </head>
+  <body>
+    <h1>Data Selfie App</h1>
+    <div><a href="/">enter</a> | <a href="/all.html">list</a></div>
+
+    <p>
+      latitude: <span id="latitude"></span>&deg;<br />
+      longitude: <span id="longitude"></span>&deg;
+    </p>
+    <input id="mood" value="rainbow" />
+
+    <button id="submit">submit</button>
+
+    <script>
+      function setup() {
+        noCanvas();
+        const video = createCapture(VIDEO);
+        video.size(160, 120);
+        let lat, lon;
+        const button = document.getElementById("submit");
+        button.addEventListener("click", async (event) => {
+          const mood = document.getElementById("mood").value;
+          video.loadPixels();
+          const image64 = video.canvas.toDataURL();
+          const data = { lat, lon, mood, image64 };
+          const options = {
+            method: "POST",
+            headers: {
+              "Content-Type": "application/json",
+            },
+            body: JSON.stringify(data),
+          };
+          const response = await fetch("/api", options);
+          const json = await response.json();
+          console.log(json);
+        });
+
+        if ("geolocation" in navigator) {
+          console.log("geolocation available");
+          navigator.geolocation.getCurrentPosition((position) => {
+            lat = position.coords.latitude;
+            lon = position.coords.longitude;
+            console.log(lat, lon);
+            document.getElementById("latitude").textContent = lat;
+            document.getElementById("longitude").textContent = lon;
+          });
+        } else {
+          console.log("geolocation not available");
+        }
+      }
+    </script>
+  </body>
+</html>

From b7876200d1cb8d247fa478a441661b0a88ec7d5e Mon Sep 17 00:00:00 2001
From: Dipam Sen <funplanet.m4f@gmail.com>
Date: Tue, 12 Jul 2022 16:14:25 +0530
Subject: [PATCH 4/9] add exercise - saving files

---
 .../{ => images}/image_1558376232234.png      | Bin
 .../{ => images}/image_1558376240358.png      | Bin
 .../{ => images}/image_1558376266448.png      | Bin
 .../{ => images}/image_1558376281197.png      | Bin
 module2/exercise_08_save_files/index.js       |  34 +
 .../exercise_08_save_files/package-lock.json  | 956 ++++++++++++++++++
 module2/exercise_08_save_files/package.json   |  20 +
 .../exercise_08_save_files/public/index.html  |  24 +
 .../public/logs/index.html                    |  15 +
 .../public/logs/logs.js                       |  25 +
 .../exercise_08_save_files/public/sketch.js   |  36 +
 .../exercise_08_save_files/public/style.css   |   4 +
 12 files changed, 1114 insertions(+)
 rename module2/exercise_08_save_files/{ => images}/image_1558376232234.png (100%)
 rename module2/exercise_08_save_files/{ => images}/image_1558376240358.png (100%)
 rename module2/exercise_08_save_files/{ => images}/image_1558376266448.png (100%)
 rename module2/exercise_08_save_files/{ => images}/image_1558376281197.png (100%)
 create mode 100644 module2/exercise_08_save_files/index.js
 create mode 100644 module2/exercise_08_save_files/package-lock.json
 create mode 100644 module2/exercise_08_save_files/package.json
 create mode 100644 module2/exercise_08_save_files/public/index.html
 create mode 100644 module2/exercise_08_save_files/public/logs/index.html
 create mode 100644 module2/exercise_08_save_files/public/logs/logs.js
 create mode 100644 module2/exercise_08_save_files/public/sketch.js
 create mode 100644 module2/exercise_08_save_files/public/style.css

diff --git a/module2/exercise_08_save_files/image_1558376232234.png b/module2/exercise_08_save_files/images/image_1558376232234.png
similarity index 100%
rename from module2/exercise_08_save_files/image_1558376232234.png
rename to module2/exercise_08_save_files/images/image_1558376232234.png
diff --git a/module2/exercise_08_save_files/image_1558376240358.png b/module2/exercise_08_save_files/images/image_1558376240358.png
similarity index 100%
rename from module2/exercise_08_save_files/image_1558376240358.png
rename to module2/exercise_08_save_files/images/image_1558376240358.png
diff --git a/module2/exercise_08_save_files/image_1558376266448.png b/module2/exercise_08_save_files/images/image_1558376266448.png
similarity index 100%
rename from module2/exercise_08_save_files/image_1558376266448.png
rename to module2/exercise_08_save_files/images/image_1558376266448.png
diff --git a/module2/exercise_08_save_files/image_1558376281197.png b/module2/exercise_08_save_files/images/image_1558376281197.png
similarity index 100%
rename from module2/exercise_08_save_files/image_1558376281197.png
rename to module2/exercise_08_save_files/images/image_1558376281197.png
diff --git a/module2/exercise_08_save_files/index.js b/module2/exercise_08_save_files/index.js
new file mode 100644
index 0000000..53997e5
--- /dev/null
+++ b/module2/exercise_08_save_files/index.js
@@ -0,0 +1,34 @@
+const express = require("express");
+const Datastore = require("nedb");
+const fs = require("fs");
+
+const app = express();
+app.listen(3000, () => console.log("listening at 3000"));
+app.use(express.static("public"));
+app.use("/img", express.static("images"));
+app.use(express.json({ limit: "1mb" }));
+
+const database = new Datastore("database.db");
+database.loadDatabase();
+
+app.get("/api", (request, response) => {
+  database.find({}, (err, data) => {
+    if (err) {
+      response.end();
+      return;
+    }
+    response.json(data);
+  });
+});
+
+app.post("/api", (request, response) => {
+  const data = request.body;
+  const timestamp = Date.now();
+  data.timestamp = timestamp;
+  data.image_file = `image_${timestamp}.png`;
+  const base64Data = data.image64.replace(/^data:image\/png;base64,/, "");
+  fs.writeFileSync(`images/${data.image_file}`, base64Data, "base64");
+  delete data.image64;
+  database.insert(data);
+  response.json(data);
+});
diff --git a/module2/exercise_08_save_files/package-lock.json b/module2/exercise_08_save_files/package-lock.json
new file mode 100644
index 0000000..e13b7ca
--- /dev/null
+++ b/module2/exercise_08_save_files/package-lock.json
@@ -0,0 +1,956 @@
+{
+  "name": "module2",
+  "version": "1.0.0",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "module2",
+      "version": "1.0.0",
+      "license": "MIT",
+      "dependencies": {
+        "express": "^4.16.4",
+        "nedb": "^1.8.0"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "1.3.5",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+      "dependencies": {
+        "mime-types": "~2.1.18",
+        "negotiator": "0.6.1"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/array-flatten": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+    },
+    "node_modules/async": {
+      "version": "0.2.10",
+      "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
+      "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
+    },
+    "node_modules/binary-search-tree": {
+      "version": "0.2.5",
+      "resolved": "https://registry.npmjs.org/binary-search-tree/-/binary-search-tree-0.2.5.tgz",
+      "integrity": "sha1-fbs7IQ/coIJFDa0jNMMErzm9x4Q=",
+      "dependencies": {
+        "underscore": "~1.4.4"
+      }
+    },
+    "node_modules/body-parser": {
+      "version": "1.18.3",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
+      "integrity": "sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=",
+      "dependencies": {
+        "bytes": "3.0.0",
+        "content-type": "~1.0.4",
+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "http-errors": "~1.6.3",
+        "iconv-lite": "0.4.23",
+        "on-finished": "~2.3.0",
+        "qs": "6.5.2",
+        "raw-body": "2.3.3",
+        "type-is": "~1.6.16"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/bytes": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
+      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=",
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+      "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.4.tgz",
+      "integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==",
+      "engines": {
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+      }
+    },
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+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
+      "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s=",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie-signature": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
+      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
+    },
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+      }
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+      }
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+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
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+}
diff --git a/module2/exercise_08_save_files/package.json b/module2/exercise_08_save_files/package.json
new file mode 100644
index 0000000..06a6119
--- /dev/null
+++ b/module2/exercise_08_save_files/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "module2",
+  "version": "1.0.0",
+  "description": "This is the data selfie app by Joey Lee.",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "example",
+    "data",
+    "selfie"
+  ],
+  "author": "Daniel Shiffman",
+  "license": "MIT",
+  "dependencies": {
+    "express": "^4.16.4",
+    "nedb": "^1.8.0"
+  }
+}
diff --git a/module2/exercise_08_save_files/public/index.html b/module2/exercise_08_save_files/public/index.html
new file mode 100644
index 0000000..09410df
--- /dev/null
+++ b/module2/exercise_08_save_files/public/index.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.8.0/p5.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.8.0/addons/p5.dom.min.js"></script>
+    <link rel="stylesheet" type="text/css" href="style.css" />
+    <title>Document</title>
+  </head>
+  <body>
+    <h1>Data Selfie App</h1>
+    <div><a href="/">enter</a> | <a href="/logs">list</a></div>
+    <p>
+      latitude: <span id="latitude"></span>&deg;<br />
+      longitude: <span id="longitude"></span>&deg;
+    </p>
+    <label for="mood">enter your mood</label>
+    <input id="mood" value="rainbow" />
+    <button id="submit">submit</button>
+    <script src="sketch.js"></script>
+  </body>
+</html>
diff --git a/module2/exercise_08_save_files/public/logs/index.html b/module2/exercise_08_save_files/public/logs/index.html
new file mode 100644
index 0000000..5e55a91
--- /dev/null
+++ b/module2/exercise_08_save_files/public/logs/index.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
+    <link rel="stylesheet" type="text/css" href="../style.css" />
+    <title>Document</title>
+  </head>
+  <body>
+    <h1>Data Selfie App</h1>
+    <div><a href="/">enter</a> | <a href="/logs">list</a></div>
+    <script src="logs.js"></script>
+  </body>
+</html>
diff --git a/module2/exercise_08_save_files/public/logs/logs.js b/module2/exercise_08_save_files/public/logs/logs.js
new file mode 100644
index 0000000..c24f7b8
--- /dev/null
+++ b/module2/exercise_08_save_files/public/logs/logs.js
@@ -0,0 +1,25 @@
+getData();
+
+async function getData() {
+  const response = await fetch("/api");
+  const data = await response.json();
+
+  for (item of data) {
+    const root = document.createElement("p");
+    const mood = document.createElement("div");
+    const geo = document.createElement("div");
+    const date = document.createElement("div");
+    const image = document.createElement("img");
+
+    mood.textContent = `mood: ${item.mood}`;
+    geo.textContent = `${item.lat}°, ${item.lon}°`;
+    const dateString = new Date(item.timestamp).toLocaleString();
+    date.textContent = dateString;
+    image.src = "/img/" + item.image_file;
+    image.alt = "Dan Shiffman making silly faces.";
+
+    root.append(mood, geo, date, image);
+    document.body.append(root);
+  }
+  console.log(data);
+}
diff --git a/module2/exercise_08_save_files/public/sketch.js b/module2/exercise_08_save_files/public/sketch.js
new file mode 100644
index 0000000..19e5cf1
--- /dev/null
+++ b/module2/exercise_08_save_files/public/sketch.js
@@ -0,0 +1,36 @@
+function setup() {
+  noCanvas();
+  const video = createCapture(VIDEO);
+  video.size(160, 120);
+  let lat, lon;
+  const button = document.getElementById('submit');
+  button.addEventListener('click', async event => {
+    const mood = document.getElementById('mood').value;
+    video.loadPixels();
+    const image64 = video.canvas.toDataURL();
+    const data = { lat, lon, mood, image64 };
+    const options = {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json'
+      },
+      body: JSON.stringify(data)
+    };
+    const response = await fetch('/api', options);
+    const json = await response.json();
+    console.log(json);
+  });
+
+  if ('geolocation' in navigator) {
+    console.log('geolocation available');
+    navigator.geolocation.getCurrentPosition(position => {
+      lat = position.coords.latitude;
+      lon = position.coords.longitude;
+      console.log(lat, lon);
+      document.getElementById('latitude').textContent = lat;
+      document.getElementById('longitude').textContent = lon;
+    });
+  } else {
+    console.log('geolocation not available');
+  }
+}
diff --git a/module2/exercise_08_save_files/public/style.css b/module2/exercise_08_save_files/public/style.css
new file mode 100644
index 0000000..bfde56c
--- /dev/null
+++ b/module2/exercise_08_save_files/public/style.css
@@ -0,0 +1,4 @@
+p {
+  padding: 10px;
+  background-color: #ffaaff;
+}

From 6a0a5d97cfb999ce9e4b95bdc9c18a663391e362 Mon Sep 17 00:00:00 2001
From: Dipam Sen <funplanet.m4f@gmail.com>
Date: Tue, 12 Jul 2022 19:17:22 +0530
Subject: [PATCH 5/9] add links to readme

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index 7a42cb2..83385d1 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,9 @@
 
 This document is an outline for the Coding Train playlist: ["Working with Data and APIs in JavaScript"](https://www.youtube.com/watch?v=DbcLg8nRWEg&list=PLRqwX-V7Uu6YxDKpFzf_2D84p0cyk4T7X&index=1)
 
+* [Main Track on the Coding Train Website](https://thecodingtrain.com/tracks/data-and-apis-in-javascript)
+* [Youtube Playlist](https://www.youtube.com/watch?v=DbcLg8nRWEg&list=PLRqwX-V7Uu6YxDKpFzf_2D84p0cyk4T7X)
+
 ## Description
 
 This course is for aspiring developers who want to learn how to work with data in web applications. How do you retrieve, collect, and store data? The course will be taught through a series of creating three data projects. The first will be client-side only and examine how to load data with `fetch()` and present on a web page. Viewers will learn about handling asynchronous events with Promises and how to render data to the DOM as well as a draw to HTML5 canvas with p5.js. The second and third project will introduce "full stack" development adding server-side programming with node.js for data persistence and API authentication.

From afc5ec3ea3d781ce3eb01df3d68576642001dca6 Mon Sep 17 00:00:00 2001
From: Dipam Sen <funplanet.m4f@gmail.com>
Date: Tue, 12 Jul 2022 20:11:27 +0530
Subject: [PATCH 6/9] change author in package.json

---
 module2/exercise_05_text_file/package.json  | 2 +-
 module2/exercise_08_save_files/package.json | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/module2/exercise_05_text_file/package.json b/module2/exercise_05_text_file/package.json
index 693ea41..cc0c132 100644
--- a/module2/exercise_05_text_file/package.json
+++ b/module2/exercise_05_text_file/package.json
@@ -11,7 +11,7 @@
     "data",
     "selfie"
   ],
-  "author": "Daniel Shiffman",
+  "author": "Fun Planet / Dipam Sen",
   "license": "MIT",
   "dependencies": {
     "express": "^4.16.4"
diff --git a/module2/exercise_08_save_files/package.json b/module2/exercise_08_save_files/package.json
index 06a6119..094d87f 100644
--- a/module2/exercise_08_save_files/package.json
+++ b/module2/exercise_08_save_files/package.json
@@ -11,7 +11,7 @@
     "data",
     "selfie"
   ],
-  "author": "Daniel Shiffman",
+  "author": "Fun Planet / Dipam Sen",
   "license": "MIT",
   "dependencies": {
     "express": "^4.16.4",

From e060817b6a5116bdb307a7ddc9a48d9332459593 Mon Sep 17 00:00:00 2001
From: Dipam Sen <funplanet.m4f@gmail.com>
Date: Tue, 12 Jul 2022 22:00:00 +0530
Subject: [PATCH 7/9] Update package.json

---
 module2/exercise_05_text_file/package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/module2/exercise_05_text_file/package.json b/module2/exercise_05_text_file/package.json
index cc0c132..520e658 100644
--- a/module2/exercise_05_text_file/package.json
+++ b/module2/exercise_05_text_file/package.json
@@ -11,7 +11,7 @@
     "data",
     "selfie"
   ],
-  "author": "Fun Planet / Dipam Sen",
+  "author": "Dipam Sen",
   "license": "MIT",
   "dependencies": {
     "express": "^4.16.4"

From a611ddb67b685be7edf6158d41ef3a9054fbe205 Mon Sep 17 00:00:00 2001
From: Dipam Sen <funplanet.m4f@gmail.com>
Date: Tue, 12 Jul 2022 22:00:26 +0530
Subject: [PATCH 8/9] Update package.json

---
 module2/exercise_08_save_files/package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/module2/exercise_08_save_files/package.json b/module2/exercise_08_save_files/package.json
index 094d87f..f460127 100644
--- a/module2/exercise_08_save_files/package.json
+++ b/module2/exercise_08_save_files/package.json
@@ -11,7 +11,7 @@
     "data",
     "selfie"
   ],
-  "author": "Fun Planet / Dipam Sen",
+  "author": "Dipam Sen",
   "license": "MIT",
   "dependencies": {
     "express": "^4.16.4",

From b31d1841cf5fc3f4fab4a1361ff8b8ad4fd23168 Mon Sep 17 00:00:00 2001
From: Bakha <62846961+khajimatov@users.noreply.github.com>
Date: Mon, 1 Aug 2022 00:53:14 +0600
Subject: [PATCH 9/9] Update README.md: changing Body reference

"Body - Web APIs" refers to a non-existent page.

The current link is: https://developer.mozilla.org/en-US/docs/Web/API/Body , which is not found in Mozilla website.

So, I'm suggesting to change it to the "Response" reference that contains "Response.body" reference and relevant information for viewers, also it fits with what is said in the video(https://youtu.be/tc8DU14qX6I&t=210). Viewers can learn about "Response" and "Response.body" on the new link.
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 83385d1..b3bb19e 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ This course is for aspiring developers who want to learn how to work with data i
 1. What is `fetch()`?
    - [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API)
    - Promises, async and await
-   - [Body - Web APIs](https://developer.mozilla.org/en-US/docs/Web/API/Body)
+   - [Response - Web APIs](https://developer.mozilla.org/en-US/docs/Web/API/Response)
    - `<img>` DOM element
 
 #### 1b: Tabular Data