Supabase Hello World

Overview

Minimal working example demonstrating core Supabase functionality.

Prerequisites

• Completed supabase-install-auth setup
• Valid API credentials configured
• Development environment ready

Instructions

Step 1: Create Entry File

Create a new file for your hello world example.

Step 2: Import and Initialize Client

import { SupabaseClient } from '@supabase/supabase-js';

const client = new SupabaseClient({
  apiKey: process.env.SUPABASE_API_KEY,
});

Step 3: Make Your First API Call

async function main() {
  const result = await supabase.from('todos').insert({ task: 'Hello!' }).select(); console.log(result.data);
}

main().catch(console.error);

Output

• Working code file with Supabase client initialization
• Successful API response confirming connection
• Console output showing:

Success! Your Supabase connection is working.

Error Handling

Error	Cause	Solution
Import Error	SDK not installed	Verify with npm list or pip show
Auth Error	Invalid credentials	Check environment variable is set
Timeout	Network issues	Increase timeout or check connectivity
Rate Limit	Too many requests	Wait and retry with exponential backoff

Examples

TypeScript Example

import { SupabaseClient } from '@supabase/supabase-js';

const client = new SupabaseClient({
  apiKey: process.env.SUPABASE_API_KEY,
});

async function main() {
  const result = await supabase.from('todos').insert({ task: 'Hello!' }).select(); console.log(result.data);
}

main().catch(console.error);

Python Example

from supabase import SupabaseClient

client = SupabaseClient()

response = supabase.table('todos').insert({'task': 'Hello!'}).execute(); print(response.data)

Resources

• Supabase Getting Started
• Supabase API Reference
• Supabase Examples

Next Steps

Proceed to supabase-local-dev-loop for development workflow setup.