Real-Time Application with Superbase

Introduction to Real-Time Features

• Real-time allows for instant updates, similar to a chat application.
• Demonstration involves creating a message-posting application.

Setting Up the Database

• Create a New Table: Named post.
  • Fields include:
    • name: Text, not nullable.
    • description: Text, not nullable.
• Enable Real-Time:
  • Locate table post.
  • Enable "Real-time broadcast changes".

Authentication and Policies

• Navigate to Authentication Policies:
  • Add a new policy for read access for everyone.
  • Use role Anon for public access.
  • Create post policy to allow everyone to post.
  • Modify to allow Anon role to insert messages.

Coding Integration

• Insert Functionality:
  • Insert new messages into the post table.
  • Local message updates upon data return.
• Testing Message Insertion:
  • Input: test, and confirm insertion into database.
• Real-Time Message Display:
  • Create a Fetch message function or subscribe to table changes.
  • Utilize client.channel.on for real-time subscription:
    • Subscribe to events on public schema, post table.
    • Log payload to verify message receipt.

Real-Time Subscription Testing

• Example: Insert "code with Gom" and "hello there".
  • Observe message appearance in real-time.
• Payload Handling:
  • Messages are pushed to a local message list from payload data.

Testing the Application

• Test the real-time features at superbase-real-time.netlify.app.
• Multiple users can post and see updates simultaneously.