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astro/packages/astro-rss/README.md
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fix: filter out draft item from glob result (#5612)
* fix: filter out draft item from glob result

* test: rss should ignore draft

* build: add changeset

* build: major version

* feat: add `drafts` option

* Add README docs

Co-authored-by: Chris Swithinbank <swithinbank@gmail.com>
2022-12-27 10:50:11 -05:00

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# @astrojs/rss 📖
This package brings fast RSS feed generation to blogs and other content sites built with [Astro](https://astro.build/). For more information about RSS feeds in general, see [aboutfeeds.com](https://aboutfeeds.com/).
## Installation
Install the `@astrojs/rss` package into any Astro project using your preferred package manager:
```bash
# npm
npm i @astrojs/rss
# yarn
yarn add @astrojs/rss
# pnpm
pnpm i @astrojs/rss
```
## Example usage
The `@astrojs/rss` package provides helpers for generating RSS feeds within [Astro endpoints][astro-endpoints]. This unlocks both static builds _and_ on-demand generation when using an [SSR adapter](https://docs.astro.build/en/guides/server-side-rendering/#enabling-ssr-in-your-project).
For instance, say you need to generate an RSS feed for all posts under `src/pages/blog/`. Start by [adding a `site` to your project's `astro.config` for link generation](https://docs.astro.build/en/reference/configuration-reference/#site). Then, create an `rss.xml.js` file under your project's `src/pages/` directory, and use [Vite's `import.meta.glob` helper](https://vitejs.dev/guide/features.html#glob-import) like so:
```js
// src/pages/rss.xml.js
import rss from '@astrojs/rss';
export const get = () => rss({
title: 'Buzzs Blog',
description: 'A humble Astronauts guide to the stars',
// pull in the "site" from your project's astro.config
site: import.meta.env.SITE,
items: import.meta.glob('./blog/**/*.md'),
});
```
Read **[Astro's RSS docs][astro-rss]** for full usage examples.
## `rss()` configuration options
The `rss` default export offers a number of configuration options. Here's a quick reference:
```js
rss({
// `<title>` field in output xml
title: 'Buzzs Blog',
// `<description>` field in output xml
description: 'A humble Astronauts guide to the stars',
// provide a base URL for RSS <item> links
site: import.meta.env.SITE,
// list of `<item>`s in output xml
items: import.meta.glob('./**/*.md'),
// include draft posts in the feed (default: false)
drafts: true,
// (optional) absolute path to XSL stylesheet in your project
stylesheet: '/rss-styles.xsl',
// (optional) inject custom xml
customData: '<language>en-us</language>',
// (optional) add arbitrary metadata to opening <rss> tag
xmlns: { h: 'http://www.w3.org/TR/html4/' },
});
```
### title
Type: `string (required)`
The `<title>` attribute of your RSS feed's output xml.
### description
Type: `string (required)`
The `<description>` attribute of your RSS feed's output xml.
### site
Type: `string (required)`
The base URL to use when generating RSS item links. We recommend using `import.meta.env.SITE` to pull in the "site" from your project's astro.config. Still, feel free to use a custom base URL if necessary.
### items
Type: `RSSFeedItem[] | GlobResult (required)`
Either a list of formatted RSS feed items or the result of [Vite's `import.meta.glob` helper](https://vitejs.dev/guide/features.html#glob-import). See [Astro's RSS items documentation](https://docs.astro.build/en/guides/rss/#generating-items) for usage examples to choose the best option for you.
When providing a formatted RSS item list, see the `RSSFeedItem` type reference below:
```ts
type RSSFeedItem = {
/** Link to item */
link: string;
/** Title of item */
title: string;
/** Publication date of item */
pubDate: Date;
/** Item description */
description?: string;
/** Full content of the item, should be valid HTML */
content?: string;
/** Append some other XML-valid data to this item */
customData?: string;
};
```
### drafts
Type: `boolean (optional)`
Set `drafts: true` to include [draft posts](https://docs.astro.build/en/guides/markdown-content/#draft-pages) in the feed output. By default, this option is `false` and draft posts are not included.
### stylesheet
Type: `string (optional)`
An absolute path to an XSL stylesheet in your project. If you dont have an RSS stylesheet in mind, we recommend the [Pretty Feed v3 default stylesheet](https://github.com/genmon/aboutfeeds/blob/main/tools/pretty-feed-v3.xsl), which you can download from GitHub and save into your project's `public/` directory.
### customData
Type: `string (optional)`
A string of valid XML to be injected between your feed's `<description>` and `<item>` tags. This is commonly used to set a language for your feed:
```js
import rss from '@astrojs/rss';
export const get = () => rss({
...
customData: '<language>en-us</language>',
});
```
### xmlns
Type: `Record<string, string> (optional)`
An object mapping a set of `xmlns` suffixes to strings of metadata on the opening `<rss>` tag.
For example, this object:
```js
rss({
...
xmlns: { h: 'http://www.w3.org/TR/html4/' },
})
```
Will inject the following XML:
```xml
<rss xmlns:h="http://www.w3.org/TR/html4/"...
```
---
For more on building with Astro, [visit the Astro docs][astro-rss].
[astro-rss]: https://docs.astro.build/en/guides/rss/#using-astrojsrss-recommended
[astro-endpoints]: https://docs.astro.build/en/core-concepts/astro-pages/#non-html-pages