Nginx use temp file as request body in post subrequest

[salmaanp]

I guess we still need the request buf, so made these changes which seemed
better. but the behavior is still same. Went though the code for upstream
create request and looks like  the body is always read from buffer.

    ngx_buf_t *payload_buf = NULL;

    payload_buf = ngx_create_temp_buf(r->pool, ctx->temp_buf_size);
    if (payload_buf == NULL) {
        ngx_log_stderr(0, "failed to ngx_create_temp_buf");
        return NGX_HTTP_INTERNAL_SERVER_ERROR;
    }
    payload_buf->in_file = 1;
    payload_buf->temp_file = 1;
    payload_buf->file = &ctx->test_temp_file->file;

    sr->request_body->buf = payload_buf;
    sr->request_body->bufs->next = NULL;
    sr->request_body->bufs->buf = payload_buf;
    sr->header_only = 1;
    //sr->filter_need_in_memory = 1;

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,290940,290941#msg-290941