Files
supabase/apps/docs
Katerina Skroumpelou dca96ae929 docs: add the Deno optional peer note to the server installing page (#50412)
## 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, one new section on the `@supabase/server` Installing page.

## What is the current behavior?

The Deno install instructions stop at `deno add jsr:@supabase/server`. A
user who then imports `@supabase/server/middleware/postgres` on Deno or
Edge Functions passes `deno check` and fails at startup with `Could not
find package 'pg'`, because Deno resolves an optional peer only when the
user's own code imports it. Nothing on the page says so.

## What is the new behavior?

A new "Optional peer dependencies on Deno" row under the JSR section
explains why, shows the bare `import 'pg'` at the top of the entry
module, gives the `deno info` check, and notes the
`--minimum-dependency-age 0` flag for same-day releases. Both
hand-maintained copies of the partial are updated and stay identical:
the spec partial for the reference site and the `docs/ref` copy for the
markdown build.

## Additional context

`pg` is the only optional peer a user can hit today. The MCP entry will
add another once it ships and gets documented then.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Documentation**
* Added Deno installation guidance for Postgres middleware that requires
the optional `pg` dependency.
* Clarified that importing `pg` directly is necessary for Deno to
resolve it at runtime.
* Added commands for verifying package resolution and handling Deno’s
minimum dependency age checks.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-09-16 15:50:38 +03:00
..
2026-09-16 00:00:27 +03:00
2026-07-01 12:59:00 +02:00

Reference Docs

Supabase Reference Docs

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If you are a maintainer of any tools in the Supabase ecosystem, you can use this site to provide documentation for the tools & libraries that you maintain.

DocSpec

We use documentation specifications which can be used to generate human-readable docs.

  • OpenAPI: for documenting API endpoints.
  • SDKSpec (custom to Supabase): for SDKs and client libraries.
  • ConfigSpec (custom to Supabase): for configuration options.
  • CLISpec (custom to Supabase): for CLI commands and usage.

The benefit of using custom specifications is that we can generate many other types from a strict schema (eg, HTML and manpages). It also means that we can switch to any documentation system we want. On this site we use Next.js, but on Supabase's official website, we use a custom React site and expose only a subset of the available API for each tool.

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