Hi! I’m working on an Nginx module that adds a handler at the REWRITE phase. The purpose of this module is to parse the request body, extract some fields from it, and set variables based on those values. The request should then proceed to be processed as usual, and the values of those fields are then logged. I put the code for a trimmed-down version of this module in a gist (see end of mby boop - Nginx Mailing List - English