@fedify/astro

@fedify/astro: Integrate Fedify with Astro

This package is available since Fedify 2.1.0.

This package provides a simple way to integrate Fedify with Astro.

First, add the integration to your astro.config.mjs:

import { defineConfig } from "astro/config";
import { fedifyIntegration } from "@fedify/astro";

export default defineConfig({
  integrations: [fedifyIntegration()],
  output: "server",
});

Then, create your middleware in src/middleware.ts:

import { createFederation } from "@fedify/fedify";
import { fedifyMiddleware } from "@fedify/astro";

const federation = createFederation<void>({
  // Omitted for brevity; see the related section for details.
});

export const onRequest = fedifyMiddleware(
  federation,
  (context) => void 0,
);

For Deno users

If you are using Deno, you should import @deno/astro-adapter in astro.config.mjs and use it as the adapter:

import { defineConfig } from "astro/config";
import { fedifyIntegration } from "@fedify/astro";
import deno from "@deno/astro-adapter";

export default defineConfig({
  integrations: [fedifyIntegration()],
  output: "server",
  adapter: deno(),
});

And the tasks in deno.json should be updated to use deno run npm:astro instead of astro:

{
  "tasks": {
    "dev": "deno run -A npm:astro dev",
    "build": "deno run -A npm:astro build",
    "preview": "deno run -A npm:astro preview"
  }
}

For Bun users

If you are using Bun, install @nurodev/astro-bun and configure it as the Astro adapter:

import { defineConfig } from "astro/config";
import { fedifyIntegration } from "@fedify/astro";
import bun from "@nurodev/astro-bun";

export default defineConfig({
  integrations: [fedifyIntegration()],
  output: "server",
  adapter: bun(),
});

Then use Bun to start Astro in development, and run the generated server entry point after building for preview or production:

{
  "scripts": {
    "dev": "bunx --bun astro dev",
    "build": "bunx --bun astro build",
    "preview": "bun ./dist/server/entry.mjs"
  }
}

How it works

Fedify behaves as a middleware that wraps around the Astro request handler. The middleware intercepts the incoming HTTP requests and dispatches them to the appropriate handler based on the request path and the Accept header (i.e., content negotiation). This architecture allows Fedify and your Astro application to coexist in the same domain and port.

The fedifyIntegration() function configures Vite's SSR settings to ensure that @fedify/fedify and @fedify/vocab are properly bundled during SSR.

For example, if you make a request to /.well-known/webfinger Fedify will handle the request by itself, but if you make a request to /users/alice (assuming your Astro app has a page for that path) with Accept: text/html header, Fedify will dispatch the request to Astro's page handler. Or if you define an actor dispatcher for /users/{identifier} in Fedify, and the request is made with Accept: application/activity+json header, Fedify will dispatch the request to the appropriate actor dispatcher.

Installation

deno add jsr:@fedify/astro  # Deno
npm  add     @fedify/astro  # npm
pnpm add     @fedify/astro  # pnpm
yarn add     @fedify/astro  # Yarn
bun  add     @fedify/astro  # Bun