Supabase Install & Auth

Overview

Set up Supabase SDK/CLI and configure authentication credentials.

Prerequisites

• Node.js 18+ or Python 3.10+
• Package manager (npm, pnpm, or pip)
• Supabase account with API access
• API key from Supabase dashboard

Instructions

Step 1: Install SDK

# Node.js
npm install @supabase/supabase-js

# Python
pip install supabase

Step 2: Configure Authentication

# Set environment variable
export SUPABASE_API_KEY="your-api-key"

# Or create .env file
echo 'SUPABASE_API_KEY=your-api-key' >> .env

Step 3: Verify Connection

const result = await supabase.from('_test').select('*').limit(1); console.log(result.error ? 'Failed' : 'OK');

Output

• Installed SDK package in node_modules or site-packages
• Environment variable or .env file with API key
• Successful connection verification output

Error Handling

Error	Cause	Solution
Invalid API Key	Incorrect or expired key	Verify key in Supabase dashboard
Rate Limited	Exceeded quota	Check quota at https://supabase.com/docs
Network Error	Firewall blocking	Ensure outbound HTTPS allowed
Module Not Found	Installation failed	Run npm install or pip install again

Examples

TypeScript Setup

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

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

Python Setup

from supabase import SupabaseClient

client = SupabaseClient(
    api_key=os.environ.get('SUPABASE_API_KEY')
)

Resources

• Supabase Documentation
• Supabase Dashboard
• Supabase Status

Next Steps

After successful auth, proceed to supabase-hello-world for your first API call.