mirror of
https://github.com/supabase/supabase.git
synced 2026-10-05 17:35:10 +03:00
Katerina Skroumpelou
c92ed0b219
## See the changes * https://docs-git-docs-middleware-usage-examples-supabase.vercel.app/docs/reference/middleware/usage-examples * https://docs-git-docs-middleware-usage-examples-supabase.vercel.app/docs/reference/middleware/build-your-own ## I have read the [CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md) file. YES ## What kind of change does this PR introduce? Docs update. ## What is the current behavior? The `@supabase/middleware` reference has two hand-written pages, Introduction and Installing, followed directly by the generated API reference. There is no worked example of composing middleware and no guidance on writing one. The authoring guide lives only in the [middleware repo](https://github.com/supabase/middleware/blob/main/docs/authoring-guide.md). ## What is the new behavior? Two new partials sit between Installing and the generated reference: - **Usage examples**: two `pipeline` examples. The first composes `withCors` and `withFeatureFlag` from `@supabase/middleware`. The second adds `withSupabase` from `@supabase/server`: `withCors` first, `withSupabase({ auth: 'user', cors: 'disabled' })` second, and an environment-driven flag last. The prose explains why a CORS layer must precede the auth gate, what `withSupabase` does for CORS on its own, and that the entry form of `withSupabase` is alpha and needs `@supabase/server` 1.6.0 or later. - **Build your own middleware**: the `defineMiddleware` shape (four type arguments, when `run` receives the config, contribute vs short-circuit, reading `getEnv` inside the per-request function), composing a custom entry in `pipeline`, what `pipeline` checks at compile time, and when `satisfies FetchHandler` matters. It links to the full authoring guide for tests, packaging, and the variants. `partialsOrder` in `spec/reference/middleware/v1/config.json` registers both partials. The `docs/ref/middleware/` mirrors were generated with `pnpm codegen:references:new`. ## Additional context - Every snippet typechecks against `@supabase/middleware` and `@supabase/server` source on `main`. The "fails to compile" statements were confirmed with negative typechecks (duplicate key, unmet prerequisite, in both the `pipeline` and nested forms). - The second example's request flow was exercised end to end with a local JWKS: preflight `204`, missing credentials `401`, flag off `404`, flag on `200`, and the reversed order producing a `401` with no CORS headers. - The generated `sections.json` lists the four partials in order: Introduction, Installing, Usage examples, Build your own middleware. No local render check was done. <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Documentation** * Added usage examples for composing middleware pipelines with CORS, feature flags, authentication, and Supabase. * Added guidance for creating custom middleware, contributing request context, handling responses, and accessing runtime environment variables. * Documented middleware ordering, validation, preflight handling, and authentication behavior. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
Supabase
Supabase is the Postgres development platform. We're building the features of Firebase using enterprise-grade open source tools.
- Hosted Postgres Database. Docs
- Authentication and Authorization. Docs
- Auto-generated APIs.
- Functions.
- File Storage. Docs
- AI + Vector/Embeddings Toolkit. Docs
- Dashboard
Watch "releases" of this repo to get notified of major updates.
Documentation
For full documentation, visit supabase.com/docs
To see how to Contribute, visit Getting Started
Community & Support
- Community Forum. Best for: help with building, discussion about database best practices.
- GitHub Issues. Best for: bugs and errors you encounter using Supabase.
- Email Support. Best for: problems with your database or infrastructure.
- Discord. Best for: sharing your applications and hanging out with the community.
How it works
Supabase is a combination of open source tools. We’re building the features of Firebase using enterprise-grade, open source products. If the tools and communities exist, with an MIT, Apache 2, or equivalent open license, we will use and support that tool. If the tool doesn't exist, we build and open source it ourselves. Supabase is not a 1-to-1 mapping of Firebase. Our aim is to give developers a Firebase-like developer experience using open source tools.
Architecture
Supabase is a hosted platform. You can sign up and start using Supabase without installing anything. You can also self-host and develop locally.
- Postgres is an object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.
- Realtime is an Elixir server that allows you to listen to PostgreSQL inserts, updates, and deletes using websockets. Realtime polls Postgres' built-in replication functionality for database changes, converts changes to JSON, then broadcasts the JSON over websockets to authorized clients.
- PostgREST is a web server that turns your PostgreSQL database directly into a RESTful API.
- GoTrue is a JWT-based authentication API that simplifies user sign-ups, logins, and session management in your applications.
- Storage a RESTful API for managing files in S3, with Postgres handling permissions.
- pg_graphql a PostgreSQL extension that exposes a GraphQL API.
- postgres-meta is a RESTful API for managing your Postgres, allowing you to fetch tables, add roles, and run queries, etc.
- Envoy is a cloud-native, high-performance edge and service proxy.
Client libraries
Our approach for client libraries is modular. Each sub-library is a standalone implementation for a single external system. This is one of the ways we support existing tools.
| Language | Client | Feature-Clients (bundled in Supabase client) | ||||
|---|---|---|---|---|---|---|
| Supabase | PostgREST | GoTrue | Realtime | Storage | Functions | |
| ⚡️ Official ⚡️ | ||||||
| JavaScript (TypeScript) | supabase-js | postgrest-js | auth-js | realtime-js | storage-js | functions-js |
| Flutter | supabase-flutter | postgrest | supabase_auth | supabase_realtime | supabase_storage | supabase_functions |
| Swift | supabase-swift | postgrest-swift | auth-swift | realtime-swift | storage-swift | functions-swift |
| Python | supabase-py | postgrest-py | gotrue-py | realtime-py | storage-py | functions-py |
| 💚 Community 💚 | ||||||
| C# | supabase-csharp | postgrest-csharp | gotrue-csharp | realtime-csharp | storage-csharp | functions-csharp |
| Go | - | postgrest-go | gotrue-go | - | storage-go | functions-go |
| Java | - | - | gotrue-java | - | storage-java | - |
| Kotlin | supabase-kt | postgrest-kt | auth-kt | realtime-kt | storage-kt | functions-kt |
| Ruby | supabase-rb | postgrest-rb | - | - | - | - |
| Rust | - | postgrest-rs | - | - | - | - |
| Godot Engine (GDScript) | supabase-gdscript | - | - | - | - | - |
Badges
[](https://supabase.com)
<a href="https://supabase.com">
<img
width="168"
height="30"
src="https://supabase.com/badge-made-with-supabase.svg"
alt="Made with Supabase"
/>
</a>
[](https://supabase.com)
<a href="https://supabase.com">
<img
width="168"
height="30"
src="https://supabase.com/badge-made-with-supabase-dark.svg"
alt="Made with Supabase"
/>
</a>
Translations
- Arabic | العربية
- Albanian / Shqip
- Bangla / বাংলা
- Bulgarian / Български
- Catalan / Català
- Croatian / Hrvatski
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- Hebrew / עברית
- Hindi / हिंदी
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- Nepali / नेपाली
- Indonesian / Bahasa Indonesia
- Italiano / Italian
- Japanese / 日本語
- Korean / 한국어
- Lithuanian / lietuvių
- Latvian / latviski
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- Norwegian (Bokmål) / Norsk (Bokmål)
- Persian / فارسی
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- Portuguese / Português
- Portuguese (Brazilian) / Português Brasileiro
- Romanian / Română
- Russian / Pусский
- Serbian / Srpski
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- Slovak / slovenský
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- Spanish / Español
- Simplified Chinese / 简体中文
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- Thai / ไทย
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- List of translations