$ curl -v "http://localhost:4567/contacts"
 *   Trying ::1...
 * TCP_NODELAY set
 * Connected to localhost (::1) port 4567 (#0)
 > GET /contacts HTTP/1.1
 > Host: localhost:4567
 > User-Agent: curl/7.51.0
 > Accept: */*
 >
 < HTTP/1.1 200 OK
 < Content-Type: application/json
 < Content-Length: 382
 < X-Content-Type-Options: nosniff
 < Server: WEBrick/1.3.1 (Ruby/2.3.3/2016-11-21)
 < Date: Thu, 30 Mar 2017 18:48:49 GMT
 < Connection: Keep-Alive
 <
 * Curl_http_done: called premature == 0
 * Connection #0 to host localhost left intact
 {"data":[{"id":1,"name":"Rheik","link":"http://localhost:4567/contacts/Rheik"},{"id":2,"name":"Paul","link":"http://localhost:4567/contacts/Paul"},{"id":3,"name":"Emil","link":"http://localhost:4567/contacts/Emil"}],"success":true,"status":200}
 $