Request counter is HTTP server, which responds to /count requests with number of request it receives in last N seconds (default is 60).
It stores data about requests in JSON file (default name is rs.json), tries to load file on start, and writes data to the file before exit, including handling interrupting signals from OS.
To build the project simply use go build.
To get help
$ ./request_counter -h
The HTTP server responds requests only to path /count. For any other URI it returns HTTP 404.
$ ./request_counter
$ curl http://localhost:8080/count
0
$ curl http://localhost:8080/count
1
go test