[SOLVED] Http Api Post Value Problem

Solved
1

Hi i am trying to set a value to my esp pin. But i am getting “404 not found” error every time.

With ifttt maker channel it works as a charm. Unfortunately i my custom app only error.

this is my post capture:

image.png955×291 9.59 KB

and the error from server:

image.png956×242 5.3 KB

2

anyone?

3

Hi. I don’t see the body in your request. Also you may try to use GET request instead - http://docs.blynkapi.apiary.io/#reference/0/write-pin-value-via-get/write-pin-value-via-get

4

i thought that the last part is body

image.png955×291 9.51 KB

by the way you can find my code details below:

        private String url = "http://188.166.206.43/98e6bfe639004559aa855275e79358b7/update/d2";
		JSONArray array = new JSONArray();
		array.put("0");
		String name = array.toString();
		HttpURLConnection con = (HttpURLConnection) ( new URL(url)).openConnection();
		con.setRequestMethod("POST");
		con.setRequestProperty("Content-Type","application/json");
		con.setDoInput(true);
		con.setDoOutput(true);
		con.connect();
		con.getOutputStream().write(name.getBytes());
5

Please read link above carefully. It is GET request with ?value=value

6

@Burak_Dogan GET looks fine:

http://188.166.206.43/98e6bfe639004559aa855275e79358b7/update/d2?value=0

http://188.166.206.43/98e6bfe639004559aa855275e79358b7/update/d2?value=1

7

I could be wrong, but try removing .getBytes() and just use name. Doesn’t .getBytes() return the byte value of the ascii string? Thus your 0 becomes 48.

instead:

con.getOutputStream().write(name);
8

i gave up with POST method but as @Dmitriy and @Costas said. GET works fine.

Thanks for your help.