A simple fake webserver that cycles through good or bad response codes.

Make your HTTP clients angry.

-v, --verbose                                 Show verbose debug information: -v for debug, -vv for trace.
-a, --addr <addr>                             Address to bind to (default: :8080)
-c, --codes <code>[, <code>, ...]             Repsonse status codes. Can be specified many times. (default: 200, 202, 206, 400, 401, 403, 404, 409, 500, 502)
-s, --selection-strategy=[round-robin|random] response code selection strategy (default: round-robin)
-r, --responses <msg>                         Use this to set a custom response message
-x, --proxy                                   Run as proxy. This will forward requests to destination and modify the status code of the original response.

go get -u github.com/dhulihan/httpeeved

• Round robin between several response codes (default):

   httpeeved

   $ curl -I localhost:8080
   HTTP/1.1 200 OK
  
   $ curl -I localhost:8080
   HTTP/1.1 400 Bad Request
  
   $ curl -I localhost:8080
   HTTP/1.1 404 Not Found
  
   $ curl -I localhost:8080 -d '{"foo": "bar"}'
   HTTP/1.1 502 Bad Gateway
   Content-Type: application/json; charset=utf-8
   Date: Mon, 19 Oct 2020 23:25:09 GMT
   Content-Length: 58
  
   {"body":"{ \"foo\": \"bar\"}","code":"502","method":"PUT"}%

• Round robin between 200 and 502 responses only

   httpeeved --codes=200 --codes=502 --selection-strategy=round-robin

• Randomly respond with different response codes

   httpeeved --codes=200 --codes=301 --codes=500 --selection-strategy=random

• Inspect a request containing multipart/form-data

   curl --location --request POST 'localhost:8000/foo' \
   	--form 'some-file=@"foo.txt"' \
   	--form 'foo="bar"' \
   	--form 'foo="baz"' | jq .
  
   {
     "Code": "200",
     "Content-Type": "multipart/form-data; boundary=------------------------c58c7266e69ad9f9",
     "Method": "POST",
     "URL": "/foo",
     "form": {
       "foo": [
         "bar",
         "baz"
       ]
     },
     "multipart-form-file-some-file-0": "foo.txt map[Content-Disposition:[form-data; name=\"some-file\"; filename=\"foo.txt\"] Content-Type:[text/plain]] 4",
     "multipart-form-value-foo-0": "bar",
     "multipart-form-value-foo-1": "baz"
   }

• Run as proxy, which makes legit requests to a destination and modifies response status code

   httpeeved -x

   $ curl -I -x localhost:8080/ google.com/
   HTTP/1.1 500 Internal Server Error