#include <nghttp2/nghttp2.h>

int32_t nghttp2_session_get_stream_remote_window_size(nghttp2_session *session, int32_t stream_id)

Returns the remote window size for a given stream stream_id.

This is the amount of flow-controlled payload (e.g., DATA) that the local endpoint can send without stream level WINDOW_UPDATE. There is also connection level flow control, so the effective size of payload that the local endpoint can actually send is min(nghttp2_session_get_stream_remote_window_size(), nghttp2_session_get_remote_window_size()).

This function returns -1 if it fails.