Add a new custom error, try to import the TypeErroMethod in composer.json

Source/API/script/Config/composer.json

@@ -6,5 +6,10 @@
         "slim/slim": "^4.11",
         "slim/psr7": "dev-master",
         "psr/http-message": "^1.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "ExceptionHandle\\" : "../ExceptionHandle"
+        }
     }
 }

Source/API/script/ExceptionHandle/HttpNotFoundError.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace ExceptionHandle;
+
+use Psr\Http\Message\ServerRequestInterface;
+use Slim\Exception\HttpSpecializedException;
+use Throwable;
+
+class HttpNotFoundError extends HttpSpecializedException {
+
+    protected $code = 404;
+    protected $message =  "Wrong URL, verify the right call of the API. Exemple :'http://url?method=getSomething&id=5'";
+
+    public function __construct(ServerRequestInterface $request,?Throwable $previous = null)
+    {
+        parent::__construct($request, $this->message, $previous);
+    }
+
+}

Source/API/script/index.php

@@ -1,9 +1,9 @@
 <?php
 
+use ExceptionHandle\TypeErrorMethod;
 use Psr\Http\Message\ResponseInterface as Response;
 use Psr\Http\Message\ServerRequestInterface as Request;
 use Slim\Factory\AppFactory;
-use ExceptionHandle\TypeErrorMethod;
 
 
 require 'Config/vendor/autoload.php';