esp_http_client to support chunked request (IDFGH-4401)

[galah92]

Is your feature request related to a problem? Please describe.
I'm trying to steam data over a single HTTP request using chunked requests (PUT request).

Describe the solution you'd like
Current HTTP-client-API has esp_http_client_open() which takes the total size of the request. This prevents from defining a chunked requests and esp_http_client_write()ing as much as I want.

[Alvin1Zhang]

Thanks for raising this feature request.

[galah92]

Just to elaborate - it seems that using a negative write_len will add chunked "Transfer-Encoding" header, but will also override the method to be POST. My use-case is for chunked requests with PUT method.

[shubhamkulkarni97]

Hi @galah92,

Sorry for slow turnaround. I got the issue where HTTP method gets overwritten to POST while sending chunked request.

Can you try applying patch attached below and check if it works for your use case?

0001-esp_http_client-Set-HTTP-method-to-POST-only-if-meth.patch.zip

[galah92]

Hi @shubhamkulkarni97. The patch is working, thanks.
Can this be merged to v4.3?

[shubhamkulkarni97]

@galah92 The change is merged internally. However, this will not be a part of v4.3 as it is a breaking change

[galah92]

@shubhamkulkarni97 @Alvin1Zhang will this be included as part of v4.4? Is there an ETA for that?

[galah92]

@shubhamkulkarni97 @Alvin1Zhang will this be included as part of v4.4? Is there an ETA for that?

Any update? This is long awaited bugfix. Thanks

[galah92]

@shubhamkulkarni97 @Alvin1Zhang bumping it again. This bugfix is of great importance for us, thank you.

[shubhamkulkarni97]

Hi @galah92,

This fix will be a part of v4.4 release. We are aiming to release IDF v4.4 by end of 2021.