Simple HTTPD Server Example

The Example consists of HTTPD server demo with demostration of URI handling :

1. URI \hello for GET command returns "Hello World!" message
2. URI \echo for POST command echoes back the POSTed message

Configure the project using "make menuconfig" and goto :
- Example Configuration ->
  1. WIFI SSID: WIFI network to which your PC is also connected to.
  2. WIFI Password: WIFI password
In order to test the HTTPD server persistent sockets demo :
1. compile and burn the firmware "make flash"
2. run "make monitor" and note down the IP assigned to your ESP module. The default port is 80
3. test the example :
  - run the test script : "python2 scripts/client.py <IP> <port> <MSG>"
    - the provided test script first does a GET \hello and displays the response
    - the script does a POST to \echo with the user input <MSG> and displays the response
  - or use curl (asssuming IP is 192.168.43.130):
    1. "curl 192.168.43.130:80/hello" - tests the GET "\hello" handler
    2. "curl -X POST --data-binary @anyfile 192.168.43.130:80/echo > tmpfile"
      - "anyfile" is the file being sent as request body and "tmpfile" is where the body of the response is saved
      - since the server echoes back the request body, the two files should be same, as can be confirmed using : "cmp anyfile tmpfile"
    3. "curl -X PUT -d "0" 192.168.43.130:80/ctrl" - disable /hello and /echo handlers
    4. "curl -X PUT -d "1" 192.168.43.130:80/ctrl" - enable /hello and /echo handlers

See the README.md file in the upper level 'examples' directory for more information about examples.