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How to launch an app backend on hosted Postgres with Supabase

Get a database, user sign-in, file storage, and auto-generated APIs for a new web or mobile app.

Who it is forSolo developer or small team building a web or mobile app who wants Firebase-style features without running servers.

The problemWiring together a database, login system, file uploads, and API layer by hand takes weeks before the app itself starts.

The outcomeA working backend with tables, user accounts, file storage, and REST endpoints generated from the database schema.

What you need first

  • A Supabase account at https://supabase.com/dashboard, or a self-hosted install following the self-host guide
  • A basic understanding of Postgres tables and rows
  • A client library for your app language, such as supabase-js for JavaScript or TypeScript, listed in the README client table

Steps

  1. Sign up at https://supabase.com/dashboard and create a new project.
  2. Create your tables in the Hosted Postgres Database and turn on row-level access rules for each table.
  3. Enable Authentication and Authorization and choose how users sign up and log in.
  4. Call the auto-generated REST API from your app using the client library for your language.
  5. Add File Storage for user uploads and check that access rules block other users from reading private files.

Prompt for your agent

Using the supabase/supabase repository README as the reference, design a Postgres schema for <app description> with tables, a sign-up flow, and a storage bucket for user files. Output the table definitions and the REST calls a client would make. Verify that every table has an access rule that limits reads and writes to the owning user.

Caveat. The README describes these features at a high level and links to docs for setup details, so check the linked guides before relying on exact steps.

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