Fix call

main.go

@@ -222,7 +222,7 @@ func ListemSmtps(tlss *smtp.Server) {
 func ListenHealthcheck(cfg *Config) {
 	updateToken := os.Getenv("X_UPDATE_TOKEN")
 
-	http.HandleFunc("/accounts.json", func(w http.ResponseWriter, r *http.Request) {
+	handleAccountsFunc := func(w http.ResponseWriter, r *http.Request) {
 		if updateToken == "" {
 			w.WriteHeader(500)
 			w.Write([]byte("X_UPDATE_TOKEN not set"))
@@ -250,9 +250,14 @@ func ListenHealthcheck(cfg *Config) {
 		cfg.Credentials = updatedAccounts
 		fmt.Println("Updated accounts: ")
 		fmt.Println(cfg.Credentials)
-	})
+	}
+
+	http.HandleFunc("/accounts.json", handleAccountsFunc)
 
 	http.ListenAndServe(":8080", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/accounts.json" && r.Method == "POST" {
+			handleAccountsFunc(w, r)
+		}
 		w.WriteHeader(200)
 		w.Write([]byte("OK"))
 	})) // nolint:errcheck