ESP8266 client connection to MongoDB

Question

I'm trying to post a new record to my MongoDB (actual CouchDB), but it seems that I'm having problems with the format of my request.

I'm using the following code: (not showing debug and validations)

WiFiClient client;
client.connect("172.16.1.4", 5984)

String connStr = "POST /iot/ HTTP/1.1\r\n"
            "Host: user:[email protected]:5984/ \r\n"
            "Content-Type: application/json\r\n"
            "\r\n"
            "'{\"a\":1}'\r\n\r\n";

client.print(connStr);

I get this response back:

HTTP/1.1 400 Bad Request
Server: CouchDB/1.6.1 (Erlang OTP/18)
Date: Sat, 07 Oct 2017 11:57:50 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 48 Cache-Control: must-revalidate

{"error":"bad_request","reason":"invalid_json"}

HTTP/1.1 400 Bad
Request Server: MochiWeb/1.0 (Any of you quaids got a smint?)
Date: Sat, 07 Oct 2017 11:57:50 GMT
Content-Length: 0

I have tried with differet json/data...

Using Linux - I have no problems:

curl -X POST user:[email protected]:5984/iot/ -H "Content-Type: application/json" -d '{"a":3}'

Harsh Bhikadia · Accepted Answer · 2017-10-07 12:54:27Z

0

The issue might be with the single quotes(') before { and at the end of }

instead of

 "'{\"a\":1}'\r\n\r\n"

it should be

 "{\"a\":1}\r\n\r\n"

answered Oct 7, 2017 at 12:54

Harsh Bhikadia

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1 Comment

Lars Bo Wassini Over a year ago

Thanks, but this didn't make any difference... :-/

Lars Bo Wassini · Accepted Answer · 2017-10-07 15:28:15Z

0

I was missing the line:

"Content-Length: " + String(json.length()) + "\r\n"

in the header.

answered Oct 7, 2017 at 15:28

Lars Bo Wassini

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