GPT

Real-Time Subscriptions

// Set up real-time subscription function subscribeToChanges(tableName, callback) { try { const subscription = supabase .channel(${tableName}changes) .on('postgreschanges', { event: '', schema: 'public', table: ta

Prompt text

Original English text. Replace placeholders with your own details.

// Set up real-time subscription
function subscribeToChanges(tableName, callback) {
 try {
 const subscription = supabase
 .channel(`${tableName}_changes`)
 .on('postgres_changes', {
 event: '*',
 schema: 'public',
 table: tableName
 }, (payload) => {
 callback(payload);
 })
 .subscribe();
 
 return subscription;
 } catch (error) {
 console.error('Subscription error:', error);
 throw error;
 }
}

// Example usage
const postsService = new DatabaseService('posts');

// Subscribe to post changes
const subscription = subscribeToChanges('posts', (payload) => {
 console.log('Change received:', payload);
 
 switch (payload.eventType) {
 case 'INSERT':
 console.log('New post:', payload.new);
 break;
 case 'UPDATE':
 console.log('Updated post:', payload.new);
 break;
 case 'DELETE':
 console.log('Deleted post:', payload.old);
 break;
 }
});

// Clean up subscription
function cleanup() {
 subscription.unsubscribe();
}

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