add ParseForm() in middleware

Author: bhmj

README.md

@@ -49,6 +49,10 @@ The "app" config section (the structure is located in [/app/config.go](https://g
 
  Configuration values can be automatically taken from environment variables using the `my_key: {{ENV_VARIABLE}}` syntax. This approach combines the best of both worlds: setting parameters via env variables while keeping them organized in a human-readable, structured YAML format.
 
+## Considerations and gotchas
+
+- you don't need to call `r.ParseForm()` in your handlers: the middleware does it. Just use `r.Form["param"]`.
+
 ## Roadmap
 
  - [x] Basic blocks

httpserver/middleware.go

@@ -75,6 +75,8 @@ func panicLoggerMiddleware(next http.Handler, logger log.MetaLogger) http.Handle
 
 func instrumentationMiddleware(handler HandlerWithResult, logger log.MetaLogger, metrics *serviceMetrics, service, endpoint string) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		_ = r.ParseForm()
+
 		// get real remote address
 		remoteAddr := r.RemoteAddr
 		if x, found := r.Header["X-Forwarded-For"]; found {