streaming=True 之后发生了什么❓

参考链接：https://gist.github.com/CMCDragonkai/6bfade6431e9ffb7fe88

好处：

• the receiver can act on the data stream in chunks immediately instead of waiting for the entire data to arrive

疑问：

• http request 的 body 没有被读的时候，这些内容在哪个地方呢？在网线上？还是被系统缓存起来了？还是在 Nginx 什么之类的？

Content-Length header determines the byte length of the request/response body. If you neglect to specify the Content-Length header, HTTP servers will implicitly add a Transfer-Encoding: chunked header. (they should not be used together)

The Content-Length header will not allow streaming, but it is useful for large binary files, where you want to support partial content serving.

一点基础知识：一个连接过来传到 Nginx，当这个连接发送的数据足够多或者关闭时，Nginx 才会把东西继续往下传。

所以，streaming 其实就是用了 Chunked transfer encoding 这个东西。噗