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Miranda Limonczenko
15484a0e75
Closes DOCS-1312 ## 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. One technical addition, isolated so the eval can attribute a score change to it. I re-ran the preview link on a scratch Eval branch and found that this PR will resolve the Eval. ## What is the current behavior? The eval baseline for `build-docs-004-postgres-connection` fails one check, 3 of 6 runs: the application-side pool cap for a serverless invocation. - Two failing runs left `max` unset, which is 10 on the Postgres.js default. - One set `max: 5`. The page says nothing about the application-side pool, so there was nothing for an agent to read. Every other check passes 6/6, including the connection string, port, username, and prepared statements. The mode choice already transmits from the page. Baseline notes are on [DOCS-1312](https://linear.app/supabase/issue/DOCS-1312). ## What is the new behavior? Add a **Configure your client** section to the procedure group. Pool sizing is its only subject. - Set the application-side pool to 1 connection per serverless invocation, and raise it only on evidence. - Name the trap concretely. Library defaults assume a persistent backend, and 10 connections is 10 per warm instance, with the instance count outside your control. - One Postgres.js sample setting `max` and `prepare`, created at module scope. - Cite the [Supavisor FAQ](https://supabase.com/docs/guides/troubleshooting/supavisor-faq-YyP5tI) and [Prisma troubleshooting](https://supabase.com/docs/guides/database/prisma/prisma-troubleshooting), which already carries the equivalent `connection_limit` guidance for one ORM. The gap is that the connection guide didn't carry it for readers not using Prisma. `prepare: false` is in the sample because a transaction mode sample is wrong without it, and the page already instructs it. It isn't new guidance. `ssl: 'require'` is, so it waits for #49928. ## Additional context PR 3 of 4. Base is #49869. This ships alone on purpose. It's the only change with baseline evidence behind it, so a score change after this PR is attributable to one edit. #49928 carries the rest of the eval feedback and is not expected to move the score. **Run the eval against this preview before #49928 lands.** ## Manual testing 1. Open [Connect to your database](https://docs-git-docs-connecting-to-postgres-pool-size-supabase.vercel.app/docs/guides/database/connecting-to-postgres) on the deploy preview. 2. Check the table of contents. "Configure your client" appears under Get your connection string. 3. Read the section. It states 1 connection per invocation and names the Postgres.js default of 10. 4. Read the sample. It sets `max: 1` and `prepare: false`, and says the client is created once at module scope. <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit - **Documentation** - Added guidance for configuring application-side Postgres clients when connecting through Supabase poolers. - Documented recommended serverless settings, including creating the client once, limiting connections per invocation, and disabling prepared statements in transaction mode. - Added a Postgres.js configuration example and links to relevant Supavisor FAQ and Prisma troubleshooting resources. <!-- 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-dart | gotrue-dart | realtime-dart | storage-dart | functions-dart |
| 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 | - | - | - | - | - |
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width="168"
height="30"
src="https://supabase.com/badge-made-with-supabase.svg"
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[](https://supabase.com)
<a href="https://supabase.com">
<img
width="168"
height="30"
src="https://supabase.com/badge-made-with-supabase-dark.svg"
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