Hello everybody !
I am working on a project with a STM32F746ZET.
The embedeed system measures temperatures, currents, voltages, save it on EEPROM, and send Altert with Ethernet/Can when there is a problem.
Now we would like to add the possibility to check currents, voltages, temperatures from a server sending POST requests(client's servor send only POST, no GET).
That's why I have activated LWIP_HTTPD and LWIP_HTTPD_SUPPORT_POST.
With httpd_post_begin, httpd_post_receive_data and httpd_post_finished I receive http requests, I can detect what information cleint's servor ask, but I don't know how to return the values they asked.
I know how to send custom file because in an other project I had to do it. I had write few html files that I had to send back (404.html, servor1.html, servor2.htm adn servor3.html), then I generated the fsdata_custom.c. After that I had to call snprintf(response_uri, response_uri_len, "/servor1.html") to send back the first html webpage for example.
But in the new project, I have to send variables (currents, voltages...) so I can't use this solution.
I have read the solution to use LWIP_HTTPD_CUSTOM_FILES, but the embedded card has no SD CARD so I can't use a file.
Do you know how to send back my own response without using a file ?
I tried to write the html format directly on the snprintf but doesn't work, it's not so simple :
snprintf(response_uri, response_uri_len, "<html><body><p>Test 57</p><ul></ul></p></body></html>")
Thanks a lot if you have already done it or have any informations.
Have a good day and thanks again for the time you spent to read my problem.
Sincerly,
Y.Fourel
