If I am correctly understanding the situation you're describing, I think this actually may be a bug with Postman.
I ran your code (removed the unused imports) with the trailing slashes, then I used curl to make a request to /stats: ~ curl -v -L -X POST http://localhost:5000/stats * Trying ::1... * TCP_NODELAY set * Connected to localhost (::1) port 5000 (#0) > POST /stats HTTP/1.1 > Host: localhost:5000 > User-Agent: curl/7.54.0 > Accept: */* > < HTTP/1.1 301 Moved Permanently < Location: /stats/ < Date: Fri, 07 Jun 2019 13:00:45 GMT < Content-Length: 0 < * Connection #0 to host localhost left intact * Issue another request to this URL: 'http://localhost:5000/stats/' * Found bundle for host localhost: 0x7fddd9e01370 [can pipeline] * Re-using existing connection! (#0) with host localhost * Connected to localhost (::1) port 5000 (#0) > POST /stats/ HTTP/1.1 > Host: localhost:5000 > User-Agent: curl/7.54.0 > Accept: */* > < HTTP/1.1 200 OK < Date: Fri, 07 Jun 2019 13:00:45 GMT < Content-Length: 22 < Content-Type: text/plain; charset=utf-8 < * Connection #0 to host localhost left intact This is a post request% As you can see, the server responds to the request to /stats with a 301 redirect to /stats/. In the above curl log, you can see that a second POST request is sent to /stats/ and your handler correctly receives a POST request. However, with Postman, the second request is issued but performs a GET request for whatever reason. Here is a log I took using mitmproxy to inspect the traffic being sent/received by Postman: ~ mitmdump -p 5001 --mode reverse:http://localhost:5000 Proxy server listening at http://*:5001 [::1]:57178: clientconnect [::1]:57179: clientconnect [::1]:57178: clientdisconnect [::1]:57179: POST http://localhost:5000/stats << 301 Moved Permanently 0b [::1]:57179: GET http://localhost:5000/stats/ << 200 OK 21b Hope this helps! Ben -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/20190607131409.GA45753%40jupiter.local. For more options, visit https://groups.google.com/d/optout.