Starts making middleware functionality

api/_common/middleware.js

@@ -0,0 +1,29 @@
+const normalizeUrl = (url) => {
+  // Normalizing logic here
+  return url.startsWith('http') ? url : `http://${url}`;
+};
+
+const commonMiddleware = (handler) => {
+  return async (event, context, callback) => {
+    try {
+      const rawUrl = event.queryStringParameters.url;
+      const url = normalizeUrl(rawUrl);
+
+      // Call the specific handler with the normalized URL
+      const response = await handler(url, event, context);
+
+      callback(null, {
+        statusCode: 200,
+        body: JSON.stringify(response),
+      });
+    } catch (error) {
+      console.log(error);
+      callback(null, {
+        statusCode: 500,
+        body: JSON.stringify({ error: error.message }),
+      });
+    }
+  };
+};
+
+module.exports = commonMiddleware;