[Libwebsockets] http GET request
Avigail Wilk
awilk at kramerav.com
Wed Jun 30 12:37:37 CEST 2021
Hi,
What is the right way to implement RestApi using lws with GET request?
As a response to a GET request I want to return the content of a file (and optionally editing the file's content before sending it).
The way It's implemented in my project is:
when I recognize the Get request in the callback function (in case LWS_CALLBACK_HTTP) I read the file's content, edit it if needed, and then write it using lws_write function and returning -1;
This worked with libwebsockets v2.0 but not with v4.2.0.
I thought that in v4.2.0 it might be a problem to call lws_write from LWS_CALLBACK_HTTP,
so instead I used lws_callback_on_writable and in LWS_CALLBACK_HTTP_WRITEABLE I used lws_write. But this didn't solve the problem.
I don't want to use lws_serve_http_file because I want the option to return the content as a string and edit it.
Any idea of what I am doing wrong? Or what is the right way to achieve this?
Many thanks!
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