Add api package serving our api routes using gorilla/mux

api/api.go

@@ -0,0 +1,17 @@
+package api
+
+import "github.com/gorilla/mux"
+
+// NewRouter returns an HTTP handler (net.Handler) which can then
+// be used by the net/http package to serve the api of our API.
+// We use gorilla/mux because it is more convenient than net/http,
+// e.g. when extracting path parameters.
+func NewRouter() *mux.Router {
+	router := mux.NewRouter()
+	// this can later be restricted to a specific host with
+	// `router.Host(...)` and to HTTPS with `router.Schemes("https")`
+	v1 := router.PathPrefix("/api/v1").Subrouter()
+	v1.HandleFunc("/health", Health).Methods("GET")
+
+	return v1
+}

go.mod

@@ -2,4 +2,7 @@ module gitlab.hpi.de/codeocean/codemoon/coolcodeoceannomadmiddleware
 
 go 1.16
 
-require github.com/stretchr/testify v1.7.0
+require (
+	github.com/gorilla/mux v1.8.0
+	github.com/stretchr/testify v1.7.0
+)

go.sum

@@ -1,5 +1,7 @@
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
+github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=

main.go

@@ -1,12 +1,14 @@
 package main
 
-import "fmt"
+import (
-
+	"gitlab.hpi.de/codeocean/codemoon/coolcodeoceannomadmiddleware/api"
-// HelloCodeMoon returns 'Hello, CodeMoon!'
+	"log"
-func HelloCodeMoon() string {
+	"net/http"
-	return "Hello, CodeMoon!"
+)
-}
 
 func main() {
-	fmt.Println(HelloCodeMoon())
+	err := http.ListenAndServe("0.0.0.0:4000", api.NewRouter())
+	if err != nil {
+		log.Fatal("Error during listening and serving: ", err)
+	}
 }

main_test.go

@@ -1,10 +0,0 @@
-package main
-
-import (
-	"github.com/stretchr/testify/assert"
-	"testing"
-)
-
-func TestHelloCodeMoon(t *testing.T) {
-	assert.Equal(t, "Hello, CodeMoon!", HelloCodeMoon())
-}