Add RSS feed #379
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| export const SITE_TITLE = "MapLibre"; | ||
| export const SITE_DESCRIPTION = | ||
| "The MapLibre Organization is an umbrella for open-source mapping libraries."; | ||
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| import type { APIContext } from "astro"; | ||
| import rss, { type RSSFeedItem } from "@astrojs/rss"; | ||
| import { | ||
| getCollection, | ||
| getEntry, | ||
| render, | ||
| type CollectionEntry, | ||
| } from "astro:content"; | ||
| import { experimental_AstroContainer as AstroContainer } from "astro/container"; | ||
| import mdxRenderer from "@astrojs/mdx/server.js"; | ||
| import solidRenderer from "@astrojs/solid-js/server.js"; | ||
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| import { transform, walk } from "ultrahtml"; | ||
| import sanitize from "ultrahtml/transformers/sanitize"; | ||
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| import { SITE_TITLE, SITE_DESCRIPTION } from "../../constants"; | ||
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| // need to make this endpoint dynamic with only one path | ||
| // otherwise the astro file will take precedence | ||
| export function getStaticPaths() { | ||
| return [{ params: { slug: "index" } }]; | ||
| } | ||
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|
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| const container = await AstroContainer.create({}); | ||
| container.addServerRenderer({ renderer: mdxRenderer, name: "mdx" }); | ||
| container.addServerRenderer({ renderer: solidRenderer, name: "solid" }); | ||
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| const getAuthors = async (authors: string[]): Promise<string> => { | ||
| const authorEntries = await Promise.all( | ||
| authors.map(async (author) => await getEntry("authors", author)), | ||
| ); | ||
|
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| const authorTitles = authorEntries | ||
| .map((author) => author?.data?.title) | ||
| .filter(Boolean); | ||
|
|
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| if (authorTitles.length > 1) { | ||
| const lastAuthor = authorTitles.pop(); | ||
| return `${authorTitles.join(", ")} and ${lastAuthor}`; | ||
| } | ||
|
|
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| return authorTitles.join(", "); | ||
| }; | ||
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| const getPost = async ( | ||
| context: APIContext, | ||
| post: CollectionEntry<"news">, | ||
| ): Promise<RSSFeedItem> => { | ||
| const content = await transform( | ||
| await container.renderToString((await render(post)).Content), | ||
| [ | ||
| async (node) => { | ||
| await walk(node, async (node) => { | ||
| if (node.name === "img" && node.attributes.src?.startsWith("/")) { | ||
| node.attributes.src = context.site + node.attributes.src.slice(1); | ||
| } | ||
| }); | ||
| return node; | ||
| }, | ||
| sanitize({ | ||
| dropElements: ["script", "style"], | ||
| }), | ||
| ], | ||
| ); | ||
|
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| return { | ||
| title: post.data.title, | ||
| pubDate: post.data.date, | ||
| description: post.data.description, | ||
| author: await getAuthors(post.data.authors), | ||
| content, | ||
| link: `/news/${post.id}/`, | ||
| }; | ||
| }; | ||
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| export async function GET(context: APIContext) { | ||
| const news = await getCollection("news"); | ||
| const items = news.sort((a, b) => +b.data.date - +a.data.date).slice(0, 15); | ||
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| return rss({ | ||
| title: SITE_TITLE, | ||
| description: SITE_DESCRIPTION, | ||
| site: context.site || "", | ||
| items: await Promise.all(items.map(async (post) => getPost(context, post))), | ||
| customData: `<language>en-US</language><lastBuildDate>${new Date().toUTCString()}</lastBuildDate>`, | ||
| }); | ||
| } |
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noting that this is also needed in a few places by the RSS feed, could look at another approach if you'd prefer.