Changed routing framework from mux to Gin.

Swagger doc is now included in the application.
A fronted can now be hosted from the application.

pkg/api/index.go

@@ -1,32 +1,29 @@
 package api
 
 import (
-	"encoding/json"
-	"fmt"
+	"github.com/gin-gonic/gin"
 	"music-server/pkg/helpers"
 	"music-server/pkg/server"
 	"net/http"
 )
 
-func IndexHandler(w http.ResponseWriter, r *http.Request) {
-	helpers.SetCorsAndNoCacheHeaders(&w, r)
+type Index struct {
+}
 
-	if r.URL.Path == "/version" {
-		w.Header().Add("Content-Type", "application/json")
+func NewIndex() *Index {
+	return &Index{}
+}
 
-		history := server.GetVersionHistory()
-		_ = json.NewEncoder(w).Encode(history)
-
-	} else if r.URL.Path == "/docs" {
-		http.ServeFile(w, r, "./docs/swagger.yaml")
-
-	} else if r.URL.Path == "/" {
-		_, err := fmt.Fprint(w, "Hello, World!!")
-		if err != nil {
-			w.WriteHeader(http.StatusInternalServerError)
-		}
-	} else {
-		http.NotFound(w, r)
+func (i *Index) GetVersion(ctx *gin.Context) {
+	versionHistory := server.GetVersionHistory()
+	if versionHistory.Version == "" {
+		helpers.NewError(ctx, http.StatusNotFound, nil)
 		return
 	}
+	ctx.JSON(http.StatusOK, versionHistory)
+}
+
+func (i *Index) GetDBTest(ctx *gin.Context) {
+	server.TestDB()
+	ctx.JSON(http.StatusOK, "TestedDB")
 }