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

set -euo pipefail

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.