37

I'm trying to get this to work, but I can't seem to find a solution anywhere on SO. When trying to compile this single-file app:

import http = require('http')
http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');

Using the command "tsc app.ts --module 'commonjs'" I get the following error (not using the --module flag gives me an additional error telling me that I need it to compile external modules):

error TS2071: Unable to resolve external module '"http"'.
error TS2072: Module cannot be aliased to a non-module type.
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4
  • try var instead of import. var http = require('http') Commented Aug 22, 2013 at 10:58
  • 6
    gives me error TS2095: Could not find symbol 'require'.. All examples I've seen use the import declaration. Commented Aug 22, 2013 at 11:15
  • 1
    if you use var, your import won't be typed correctly. Commented Feb 24, 2016 at 16:31
  • 1
    @Shoerob Can you elaborate a bit more on your comment. Do you mean that if we use 'var' instead of 'import', intelliSense wouldn't work on it? Commented Mar 5, 2016 at 9:08

3 Answers 3

Reset to default
45

TypeScript needs to know that http is present.

Updated

Install the type definitinos for node:

npm install @types/node

Old answer

Follows these two steps

PS: See a sample test file : https://github.com/borisyankov/DefinitelyTyped/blob/master/node/node-tests.ts

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12 Comments

I'm scratching my head now, since I was sure I had tried adding the referencepath. I even had it in my folder. Anyway, it works now, thanks!
I'm glad you didn't post code that included the reference. That would have become hard to track ;)
@basarat I copies the node.d.ts file you've pointed to, but its throwing plenty of "File not found errors" in the .d.ts file - especially for files like "crypto" "net" and "stream". Can you point me to these files or a stable version of node.d.ts
@basarat I've asked a question about this here: stackoverflow.com/questions/20437808/…
All links to Github are broken. Is this answer still valid?
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2

I found that I had noResolve set to true in my tsconfig.json file. This was causing errors with the references to the .d.ts files that I had included at the top of my TypeScript files.

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Comments

-3

Shouldn't it be something like

/// <reference path="node.d.ts" />
import http = module('http')

I mean, shouldn't you use module instead of require ?

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4 Comments

module was deprecated in favor or require to be more consistent with the generated js
How would this work with a module already written in Typescript? Would it need a definition file? I've asked the question here also: stackoverflow.com/questions/23175152/…
@basarat aren't 'module' and 'require' separate in typescript's context. I was of the opinion that 'module' is for internal modules and 'require' is for external modules.
no. module has been deprecated for a long time. Its import/require

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