Backend: Added basic endpoint with parameter gathering. Added sendResponse and GetFunctionName

backend/server/pictures.go

@@ -5,6 +5,12 @@ import (
 	"net/http"
 )
 
-func handlePictureRequest(w http.ResponseWriter, r *http.Request) {
+func getphoto(w http.ResponseWriter, r *http.Request) {
-	util.Logformat(util.INFO, "Calling 'handlePictureRequest' with '%s'\n", r.Method)
+	idStr := r.URL.Query().Get("id")
+	if idStr == "" {
+		util.Logformat(util.ERROR, "%s: Missing 'id' parameter.", util.GetFunctionName())
+		http.Error(w, "Missing or invalid parameters : id", http.StatusBadRequest)
+	} else {
+		sendResponse(w, 0)
+	}
 }

backend/server/server.go

@@ -2,13 +2,14 @@ package server
 
 import (
 	"backend/util"
+	"encoding/json"
 	"net/http"
 	"strconv"
 )
 
 func Start(port int64) {
 	// Creating endpoints
-	http.HandleFunc("/hello/", wrapHeader(handlePictureRequest))
+	http.HandleFunc("/getphoto", wrapHeader(getphoto))
 
 	util.Logformat(util.INFO, "Starting server on port %d...\n", port)
 	if err := http.ListenAndServe(":"+strconv.FormatInt(port, 10), nil); err != nil {
@@ -17,6 +18,15 @@ func Start(port int64) {
 	}
 }
 
+func sendResponse(w http.ResponseWriter, r any) {
+	w.Header().Set("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(r); err != nil {
+		util.Logformat(util.ERROR, "%s\n", err.Error())
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+}
+
 // Not sure about that, might change it later... (added by Lemonochrme on 'yoboujon/automatic-management')
 func wrapHeader(next http.HandlerFunc) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {

backend/util/util.go

@@ -2,9 +2,16 @@ package util
 
 import (
 	"net/http"
+	"runtime"
 	"strings"
 )
 
+func GetFunctionName() string {
+	pc, _, _, _ := runtime.Caller(1)
+	f := runtime.FuncForPC(pc)
+	return strings.Split(strings.Split(f.Name(), "/")[1], ".")[1]
+}
+
 func HasSubURI(r *http.Request) (bool, string) {
 	url := strings.Split(r.URL.Path, "/")
 	return (len(url[2]) > 0), url[2]