ESP8266 Community Forum

- Thu Feb 26, 2015 3:06 pm #10830

In the code example.ino there's wifi.sendHttpRequest("example.com", 80, "GET", "/subdir/index.html", "data sended with request", "url_query_data"); I have tried to form the parameters but the server always replays with page 400 - Bad Request and I have no clue to fix this.

If you look at the source code the library actually has a pretty funny way of handling the query parameters. The string you put into the last send parameter is appended into the URL in one query parameter "q". So it ends up being something like

Code: Select allhttp://eaxmple.com/subdir/index.html?q=url_query_data

.

So unless you change things a bit in the library itself you can probably just put a parameter like "xyz?id=01&val=12.4" as the server will then just ignore the extra "q=xyz" parameter.

- Fri Feb 27, 2015 10:41 am #10889 Yes! Thanks!

Now it works.

Regards,
Jukka

- Tue Nov 03, 2015 3:40 pm #32955 Hi,

Your library is exactly what I was looking for! Amazing!
I tried to compile your example.. got this error:
performance-test.ino:1:28: fatal error: SoftwareSerial.h: No such file or directory
compilation terminated.
Error compiling.

I am using an adafruit hUZZAH ESP8266 and Arduino 1.6.5

Any idea?

Thanks a lot!

- Sun Nov 15, 2015 11:23 am #34071 An update: I tried changing the sendHTTPrequest values in case the example.org values were not a working example. I tried the following:

Code: Select allwifi.sendHttpRequest("www.httpbin.org", 80, "GET", "/get", "mirror me", "");

HTTPbin is supposed to mirror the HTTP request, so this should be valid. I now get the following:

Code: Select all GET /get?q= HTTP/1.1Host: www.httpbin.orgConnection: keep-aliveUser-Agent: ESP8266_HTTP_ClientContent-Length: 9mirror me
ESP8266 data sending timeout
AT+CIPCLOSEbusy s...

SEND OK

ESP8266 socket connection closing  timeout
595B
 GET /get?q= HTTP/1.1Host: www.httpbin.orgConnection: keep-aliveUser-Agent: ESP8266_HTTP_ClientContent-Length: 9mirror me
ESP8266 data sending timeout
 GET /get?q= HTTP/1.1Host: www.httpbin.orgConnection: keep-aliveUser-Agent: ESP8266_HTTP_ClientContent-Length: 9mirror me
ESP8266 data sending timeout
AT+CIPCLOSEbusy s...

SEND OK

It tries several times, and gets a 'data sending timeout' 2/3 of the time, and a 'AT+CIPCLOSEbusy s...' + 'SEND OK' + 'socket connection closing timeout' 1/3 of the time.

Does anyone know what might be going on?