Listings is not showing while calling from Backend

React Native
1

Hello
Did any one facing an issue while calling a list from backend ?
I checked Listing API working perfectly fine when I open from separate browser but when I am calling from React Native it showing this error . I believe its some kind of cross site URL calling issue.

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2

You’ll need to configure CORS on the backend. Is this an Express backend? If so, you can follow the steps to install the cors middleware. To summarize…

Install the npm package:

npm install cors

In your app.js (or wherever you have required express), import the cors module:

const cors = require('cors')

And then use it in your express app, which should look something like this:

app.use(cors())

This will enable all CORS requests i.e. your server should now return the Access-Control-Allow-Origin header with the value of *.

Or, you could specifically allow CORS for just your frontend origin:

app.use(cors({ origin: 'http://localhost:19006' }))

2 Likes
3

Thank you so much it solve the problem :slight_smile: