Guide to test localhost api

For Express App

1. Install CORS npm package

   npm i cors

2. Paste following code after line [app = express() ]

   const cors = require("cors");
   app.use(cors());

Cross-Origin Resource Sharing (CORS) is a browser security feature that allows client web applications to interact with resources in a different domain. CORS is an HTTP-header-based protocol that allows a server to specify which origins can access its resources.