Add flag to specify listening host:port

README.md

@@ -22,7 +22,13 @@ If you installed fizzbuzz-lbc using `go get` or with `go install`, you can run i
 
     $ $GOPATH/bin/fizzbuzz-lbc
 
-It will launch the fizz-buzz endpoint listenning on `*:8080`.
+or you can run it in the source folder by running
+
+    $ go run main.go
+
+`fizzbuzz-lbc` will listen by default on `*:8080`, but you can specify the host and port by using the `-hostport flag`, for example:
+
+    $ ./fizzbuzz-lbc  -hostport 127.0.0.1:8000
 
 Then, you can query the server via http, providing the required parameters:
 
@@ -34,4 +40,4 @@ fizzbuzz-lbc expects 5 parameters:
     - `string2`: the second string
     - `int1`: the first integer
     - `int2`: the second integer
-    - `limit`: the limit 
+    - `limit`: the limit

main.go

@@ -1,15 +1,18 @@
 package main
 
 import (
+	"flag"
 	"log"
 	"net/http"
 
 	"dev.fxaguessy.fr/fx/fizzbuzz-lbc/fizzbuzz"
 )
 
+var hostPort = flag.String("hostport", ":8080", "server listening on host:port")
+
 func main() {
-	hostPort := ":8080"
+	flag.Parse()
 	server := &fizzbuzz.Server{}
-	log.Printf("Starting fizzbuzz server on %s", hostPort)
-	log.Fatal(http.ListenAndServe(hostPort, server.Routes()))
+	log.Printf("Starting fizzbuzz server on %s", *hostPort)
+	log.Fatal(http.ListenAndServe(*hostPort, server.Routes()))
 }