updated and added some packages

api/users/register.go

@@ -0,0 +1,49 @@
+package users
+
+import (
+	"auth_service/database"
+	"auth_service/model"
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	"github.com/google/uuid"
+)
+
+func RegisterUser(w http.ResponseWriter, req *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+	var request model.AddUserRequest
+	decoder := json.NewDecoder(req.Body)
+	decoder.Decode(&request)
+	if request.Username == "" {
+		fmt.Fprintf(w, "{\"error\":\"need more data\"}")
+		return
+	}
+	id, err := uuid.NewRandom()
+	if err != nil {
+		fmt.Fprintf(w, "{\"error\":\"%v\"}", err)
+		return
+	}
+	group := "users"
+	if request.Group != "" {
+		group = request.Group
+	}
+	_, e := database.GetUserByUsername(request.Username)
+	if e != nil {
+		e = database.CreateUser(&model.User{
+			Id:          id.String(),
+			Username:    request.Username,
+			Email:       request.Email,
+			Password:    request.Password,
+			Group:       group,
+			IsSuperuser: request.IsSuperuser,
+		})
+		if e != nil {
+			fmt.Fprintf(w, "{\"error\":\"%v\"}", e)
+			return
+		}
+		fmt.Fprintf(w, "{\"status\": 200}")
+		return
+	}
+	fmt.Fprintf(w, "{\"error\":\"username already exists\"}")
+}