82 lines
1.8 KiB
Go
82 lines
1.8 KiB
Go
// backend\main.go
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package main
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import (
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"context"
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"encoding/json"
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"log"
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"net/http"
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"os"
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"strings"
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"github.com/jackc/pgx/v5/pgxpool"
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"github.com/joho/godotenv"
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)
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func main() {
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if err := godotenv.Load(); err != nil {
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log.Println("Keine .env Datei gefunden, nutze System-Environment oder Fallbacks")
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}
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port := env("PORT", "8080")
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databaseURL := env("DATABASE_URL", "postgres://postgres:postgres@localhost:5432/teg?sslmode=disable")
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jwtSecret := env("JWT_SECRET", "dev-secret-change-me")
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frontendOrigin := env("FRONTEND_ORIGIN", "http://localhost:5173")
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ctx := context.Background()
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db, err := pgxpool.New(ctx, databaseURL)
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if err != nil {
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log.Fatal(err)
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}
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defer db.Close()
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if err := db.Ping(ctx); err != nil {
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log.Fatal(err)
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}
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server := NewServer(db, jwtSecret, frontendOrigin)
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server.startPresenceMonitor(ctx)
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server.startDisappearingMessagesMonitor(ctx)
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if !server.webPushConfigured() {
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log.Println("Web Push ist nicht konfiguriert. VAPID_PUBLIC_KEY und VAPID_PRIVATE_KEY sowie eine Absenderadresse fehlen.")
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}
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log.Printf("Backend läuft auf http://localhost:%s", port)
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if err := http.ListenAndServe(":"+port, server.Routes()); err != nil {
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log.Fatal(err)
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}
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}
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func readJSON(r *http.Request, target any) error {
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return json.NewDecoder(r.Body).Decode(target)
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}
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func writeJSON(w http.ResponseWriter, status int, payload any) {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(status)
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_ = json.NewEncoder(w).Encode(payload)
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}
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func writeError(w http.ResponseWriter, status int, message string) {
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writeJSON(w, status, map[string]string{
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"error": message,
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})
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}
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func normalizeEmail(email string) string {
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return strings.ToLower(strings.TrimSpace(email))
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}
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func env(key string, fallback string) string {
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value := os.Getenv(key)
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if value == "" {
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return fallback
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}
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return value
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}
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