- [#5056](https://github.com/withastro/astro/pull/5056) [`e55af8a23`](https://github.com/withastro/astro/commit/e55af8a23233b6335f45b7a04b9d026990fb616c) Thanks [@matthewp](https://github.com/matthewp)! - # New build configuration
The ability to customize SSR build configuration more granularly is now available in Astro. You can now customize the output folder for `server` (the server code for SSR), `client` (your client-side JavaScript and assets), and `serverEntry` (the name of the entrypoint server module). Here are the defaults:
```js
import { defineConfig } from 'astro/config';
export default defineConfig({
output: 'server',
build: {
server: './dist/server/',
client: './dist/client/',
serverEntry: 'entry.mjs',
},
});
```
These new configuration options are only supported in SSR mode and are ignored when building to SSG (a static site).
## Integration hook change
The integration hook `astro:build:start` includes a param `buildConfig` which includes all of these same options. You can continue to use this param in Astro 1.x, but it is deprecated in favor of the new `build.config` options. All of the built-in adapters have been updated to the new format. If you have an integration that depends on this param we suggest upgrading to do this instead:
- [#4876](https://github.com/withastro/astro/pull/4876) [`d3091f89e`](https://github.com/withastro/astro/commit/d3091f89e92fcfe1ad48daca74055d54b1c853a3) Thanks [@matthewp](https://github.com/matthewp)! - Adds the Astro.cookies API
`Astro.cookies` is a new API for manipulating cookies in Astro components and API routes.
In Astro components, the new `Astro.cookies` object is a map-like object that allows you to get, set, delete, and check for a cookie's existence (`has`):
- [#4884](https://github.com/withastro/astro/pull/4884) [`fb91d04a5`](https://github.com/withastro/astro/commit/fb91d04a5cb8f84f5b1be0a4e0c6cd61ec514736) Thanks [@bluwy](https://github.com/bluwy)! - Set SSR target webworker
- [#4558](https://github.com/withastro/astro/pull/4558) [`742966456`](https://github.com/withastro/astro/commit/7429664566f05ecebf6d57906f950627e62e690c) Thanks [@tony-sull](https://github.com/tony-sull)! - Adding the `withastro` keyword to include the adapters on the [Integrations Catalog](https://astro.build/integrations)
- [#4015](https://github.com/withastro/astro/pull/4015) [`6fd161d76`](https://github.com/withastro/astro/commit/6fd161d7691cbf9d3ffa4646e46059dfd0940010) Thanks [@matthewp](https://github.com/matthewp)! - New `output` configuration option
This change introduces a new "output target" configuration option (`output`). Setting the output target lets you decide the format of your final build, either:
-`"static"` (default): A static site. Your final build will be a collection of static assets (HTML, CSS, JS) that you can deploy to any static site host.
-`"server"`: A dynamic server application. Your final build will be an application that will run in a hosted server environment, generating HTML dynamically for different requests.
If `output` is omitted from your config, the default value `"static"` will be used.
When using the `"server"` output target, you must also include a runtime adapter via the `adapter` configuration. An adapter will _adapt_ your final build to run on the deployed platform of your choice (Netlify, Vercel, Node.js, Deno, etc).
To migrate: No action is required for most users. If you currently define an `adapter`, you will need to also add `output: 'server'` to your config file to make it explicit that you are building a server. Here is an example of what that change would look like for someone deploying to Netlify:
```diff
import { defineConfig } from 'astro/config';
import netlify from '@astrojs/netlify/functions';
export default defineConfig({
adapter: netlify(),
+ output: 'server',
});
```
* [#4018](https://github.com/withastro/astro/pull/4018) [`0cc6ede36`](https://github.com/withastro/astro/commit/0cc6ede362996b9faba57481a790d6eb7fba2045) Thanks [@okikio](https://github.com/okikio)! - Support for 404 and 500 pages in SSR
- [#3973](https://github.com/withastro/astro/pull/3973) [`5a23483ef`](https://github.com/withastro/astro/commit/5a23483efb3ba614b05a00064f84415620605204) Thanks [@matthewp](https://github.com/matthewp)! - Adds support for Astro.clientAddress
The new `Astro.clientAddress` property allows you to get the IP address of the requested user.
This property is only available when building for SSR, and only if the adapter you are using supports providing the IP address. If you attempt to access the property in a SSG app it will throw an error.
* [#4020](https://github.com/withastro/astro/pull/4020) [`1666fdb4c`](https://github.com/withastro/astro/commit/1666fdb4c508bed1f41aea16196aa127b64cb506) Thanks [@JuanM04](https://github.com/JuanM04)! - Removed requirement for `ENABLE_VC_BUILD=1`, since Build Output v3 is now stable. [Learn more](https://vercel.com/blog/build-output-api).
- [#3865](https://github.com/withastro/astro/pull/3865) [`1f9e4857`](https://github.com/withastro/astro/commit/1f9e4857ff2b2cb7db89d619618cdf546cd3b3dc) Thanks [@delucis](https://github.com/delucis)! - Small README fixes
* [#3854](https://github.com/withastro/astro/pull/3854) [`b012ee55`](https://github.com/withastro/astro/commit/b012ee55b107dea0730286263b27d83e530fad5d) Thanks [@bholmesdev](https://github.com/bholmesdev)! - [astro add] Support adapters and third party packages
- [#3368](https://github.com/withastro/astro/pull/3368) [`9d01f93b`](https://github.com/withastro/astro/commit/9d01f93b1c7db5d4afc4041e6ee73fb52f24d2d1) Thanks [@JuanM04](https://github.com/JuanM04)! - Remove `nodeVersion` option for `serverless` target. Now it is inferred from Vercel
- [#3216](https://github.com/withastro/astro/pull/3216) [`114bf63e`](https://github.com/withastro/astro/commit/114bf63e11f28299b13178ef1a412eed37ab7909) Thanks [@JuanM04](https://github.com/JuanM04)! - **[BREAKING]** Now with Build Output API (v3)! [See the README to get started](https://github.com/withastro/astro/tree/main/packages/integrations/vercel#readme).
-`trailingSlash` redirects works without a `vercel.json` file: just configure them inside your `astro.config.mjs`
- Multiple deploy targets: `edge`, `serverless` and `static`!
- When building to `serverless`, your code isn't transpiled to CJS anymore.
**Migrate from v0.1**
1. Change the import inside `astro.config.mjs`:
```diff
- import vercel from '@astrojs/vercel';
+ import vercel from '@astrojs/vercel/serverless';
```
2. Rename the `ENABLE_FILE_SYSTEM_API` environment variable to `ENABLE_VC_BUILD`, as Vercel changed it.
3. The output folder changed from `.output` to `.vercel/output` — you may need to update your `.gitignore`.
- [#3051](https://github.com/withastro/astro/pull/3051) [`b0ba22c5`](https://github.com/withastro/astro/commit/b0ba22c5ffab6575706ae904d0ad8cadc3f48d43) Thanks [@JuanM04](https://github.com/JuanM04)! - Fixed issues when converting from ESM to CJS
* [#3139](https://github.com/withastro/astro/pull/3139) [`4ac37973`](https://github.com/withastro/astro/commit/4ac3797344943df4124abd4043deda624440f035) Thanks [@JuanM04](https://github.com/JuanM04)! - Added warning when `ENABLE_FILE_SYSTEM_API` is not found
* [#3008](https://github.com/withastro/astro/pull/3008) [`8bd49c95`](https://github.com/withastro/astro/commit/8bd49c95365f7bbce41e19b7e8658ad639c22f31) Thanks [@JuanM04](https://github.com/JuanM04)! - Updated integrations' `astro:build:done` hook: now it matches the client dist when using SSR
- [#3008](https://github.com/withastro/astro/pull/3008) [`8bd49c95`](https://github.com/withastro/astro/commit/8bd49c95365f7bbce41e19b7e8658ad639c22f31) Thanks [@JuanM04](https://github.com/JuanM04)! - Updated integrations' `astro:build:done` hook: now it matches the client dist when using SSR
- [#2915](https://github.com/withastro/astro/pull/2915) [`e30aa4df`](https://github.com/withastro/astro/commit/e30aa4dfef2bbe874e2fe7f07232bf8a3c092317) Thanks [@JuanM04](https://github.com/JuanM04)! - Add a Vercel adapter for SSR
