Now generateing api key via eng_gen script

scripts/create_testenv.ts

@@ -8,14 +8,21 @@ nodemailer.createTestAccount((err, account) => {
         console.error('Failed to create a testing account. ' + err.message);
         return process.exit(1);
     }
-
+    let apikey = '';
+    const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
+    const charactersLength = characters.length;
+    for (var i = 0; i < 64; i++) {
+        apikey += characters.charAt(Math.floor(Math.random() * charactersLength));
+    }
     const env = `
 NODE_ENV=dev
 MAIL_SERVER=${account.smtp.host}
 MAIL_PORT=${account.smtp.port}
 MAIL_USER=${account.user}
 MAIL_PASSWORD=${account.pass}
-MAIL_FROM=${account.user}`
+MAIL_FROM=${account.user}
+API_KEY=${apikey}
+`
 
     try {
         fs.writeFileSync("./.env", env, { encoding: "utf-8" });