Get the request body without consuming it before sending to upstream

[pengye91]

What is the problem your feature solves, or the need it fulfills?

currently we can't get the request body in any methods without consuming it.

we can use read_request_body() method on the session but it will consume the body causing the upstream get a None for the request body, which is not we wanted.

I think this is a common case for a proxy, for example, to log the request body.

Describe the solution you'd like

I'd like to get the request body in the request_filter or upstream_request_filter phase without consuming it.

[drcaramelsyrup]

I imagine we should have a request_body_filter like response_body_filter to be able to handle this.

[christianscano]

Nowadays, is there a momentary solution to read the request body without consuming it?