multipart esp32 upload to server

[datluong]

Hi all,
I am trying to upload a file to server, let's say firebase realtime using esp32.
However in the example code in esp32_http_client, there is only demo for uploading a string.
I wonder how can I upload a file, which size around 2 MB, I stored it in SD card.
Thank you very much.

[chegewara]

Boundary:
https://ec.haxx.se/http-multipart.html
https://swagger.io/docs/specification/d ... -requests/