LwIP - code for POST method

[Rick MC]

Posted on June 15, 2018 at 15:53

I created a webpage associated with the IP address of my Discovery board. The page allows you to choose a txt file and send it to the board. 

What I want to do is receive the txt file and read what is inside. I know I have to implement a code to match the POST method implemented in the webpage.

I think I have to use a function like httpd_post_receive_data() that I found in httpd.h but I don't know how to use it..

Is there any example that shows this part? or other ways to do it?

Thanks!

#stm32f7 #discovery #lwip

[Tilen MAJERLE]

Posted on June 15, 2018 at 22:38

Hello

marco.pirotta

‌,

one option is to use as you mentioned, but I would suggest you to go with NETCONN API and handle server with it.

In this case you need RTOS to handle multi-threading for you, but data processing will be linear and much more easier for you.

Please check for Netconn_server_RTOS examples in your favourite STM32Cube package. There is server for HTTP webpage and you may rewrite it to handlePOST instead ofGET in the first data packet.

Best regards,

Tilen

[Rick MC]

Posted on June 18, 2018 at 16:10

Thanks for the advice

Majerle.Tilen

‌. Anyway I would like to avoid the use of RTOS since it is already a pretty big project.

Any other way to do it without an operating system?

I noticed functions such ashttpd_post_receive_data() orhttpd_post_finished() that may be suitable to my purpose. Does anyone know if these functions can be used and how to use them? (for example I don't know what the connection requested in input really is..)

Thanks!