Let Users Share Their Online Status in Your App with Express, React, and Twilio Sync

Twilio Sync is a cloud-stored shared state technology that enables real-time collaboration and connection in apps. This article demonstrates how to use Twilio Sync with Express and React to show who's online in an app. The setup involves creating a backend using Express, generating an Access Token, and setting up a frontend using React. The React app connects to the Express server, which grants access tokens to clients. The app uses these tokens to create a shared state of online users, allowing real-time updates and connections.

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