Supabase

How to Build an API with Supabase

Create a RESTful API instantly with Supabase's auto-generated endpoints and edge functions

Intermediate
2-4 hours

Prerequisites

Before you begin, make sure you have the following ready.

Supabase account
Database tables created
API consumer ready

What You Will Build

A complete API with CRUD operations, filtering, pagination, and custom edge functions

Key Features

Auto-generated REST API
GraphQL support
Edge functions
API key management
Rate limiting

Step-by-Step Tutorial

Follow these steps to build your with Supabase.

1

Review auto-generated endpoints

Explore the API Supabase creates from your tables

2

Test CRUD operations

Use the API to create, read, update, and delete data

3

Add filtering and pagination

Learn query parameters for advanced data retrieval

4

Create edge functions

Build custom serverless functions for complex logic

5

Secure your API

Configure API keys and RLS for protection

Common Mistakes to Avoid

Exposing API keys in frontend code
Not using RLS
Skipping input validation

Next Steps

Once you have completed this tutorial, consider these enhancements.

Add webhook integrations
Implement caching
Create API documentation

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