97 lines
3.7 KiB
Markdown
97 lines
3.7 KiB
Markdown
# @astrojs/vercel
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This adapter allows Astro to deploy your SSR site to [Vercel](https://www.vercel.com/).
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- <strong>[Why Astro Vercel](#why-astro-vercel)</strong>
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- <strong>[Installation](#installation)</strong>
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- <strong>[Usage](#usage)</strong>
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- <strong>[Configuration](#configuration)</strong>
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- <strong>[Troubleshooting](#troubleshooting)</strong>
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- <strong>[Contributing](#contributing)</strong>
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- <strong>[Changelog](#changelog)</strong>
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## Why Astro Vercel
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If you're using Astro as a static site builder — its behavior out of the box — you don't need an adapter. In order to return the correct status code for non existing pages, you must add the following config file at the root of your project:
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__`vercel.json`__
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```json
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{
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"cleanUrls": true,
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"trailingSlash": false
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}
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```
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If you wish to [use server-side rendering (SSR)](https://docs.astro.build/en/guides/server-side-rendering/), Astro requires an adapter that matches your deployment runtime.
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[Vercel](https://www.netlify.com/) is a deployment platform that allows you to host your site by connecting directly to your GitHub repository. This adapter enhances the Astro build process to prepare your project for deployment through Vercel.
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## Installation
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First, install the `@astrojs/vercel` package using your package manager. If you're using npm or aren't sure, run this in the terminal:
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```sh
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npm install @astrojs/vercel
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```
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Then, install this adapter in your `astro.config.*` file using the `deploy` property (note the import from `@astrojs/vercel/serverless` - see [targets](#targets)).
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__`astro.config.mjs`__
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```js
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import { defineConfig } from 'astro/config';
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import vercel from '@astrojs/vercel/serverless';
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export default defineConfig({
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output: 'server',
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adapter: vercel()
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});
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```
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### Targets
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You can deploy to different targets:
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- `edge`: SSR inside an [Edge function](https://vercel.com/docs/concepts/functions/edge-functions).
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- `serverless`: SSR inside a [Node.js function](https://vercel.com/docs/concepts/functions/serverless-functions).
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- `static`: generates a static website following Vercel's output formats, redirects, etc.
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> **Note**: deploying to the Edge has [its limitations](https://vercel.com/docs/concepts/functions/edge-functions#known-limitations). An edge function can't be more than 1 MB in size and they don't support native Node.js APIs, among others.
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You can change where to target by changing the import:
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```js
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import vercel from '@astrojs/vercel/edge';
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import vercel from '@astrojs/vercel/serverless';
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import vercel from '@astrojs/vercel/static';
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```
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## Usage
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📚 **[Read the full deployment guide here.](https://docs.astro.build/en/guides/deploy/vercel/)**
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You can deploy by CLI (`vercel deploy`) or by connecting your new repo in the [Vercel Dashboard](https://vercel.com/). Alternatively, you can create a production build locally:
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```sh
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astro build
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vercel deploy --prebuilt
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```
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## Configuration
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This adapter does not expose any configuration options.
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## Troubleshooting
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**A few known complex packages (example: [puppeteer](https://github.com/puppeteer/puppeteer)) do not support bundling and therefore will not work properly with this adapter.** By default, Vercel doesn't include npm installed files & packages from your project's `./node_modules` folder. To address this, the `@astrojs/vercel` adapter automatically bundles your final build output using `esbuild`.
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For help, check out the `#support-threads` channel on [Discord](https://astro.build/chat). Our friendly Support Squad members are here to help!
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## Contributing
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This package is maintained by Astro's Core team. You're welcome to submit an issue or PR!
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## Changelog
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See [CHANGELOG.md](CHANGELOG.md) for a history of changes to this integration.
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[astro-integration]: https://docs.astro.build/en/guides/integrations-guide/
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