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import { Feed } from 'feed';
import {
getArticleFromRawData,
getArticles,
getTotalArticles,
} from '../../services/graphql';
import type { Article } from '../../types';
import { CONFIG } from '../config';
import { ROUTES } from '../constants';
/**
* Retrieve the data for all the articles.
*
* @returns {Promise<Article[]>} - All the articles.
*/
const getAllArticles = async (): Promise<Article[]> => {
const totalArticles = await getTotalArticles();
const rawArticles = await getArticles({ first: totalArticles });
const articles: Article[] = [];
rawArticles.edges.forEach(async (edge) => {
articles.push(await getArticleFromRawData(edge.node));
});
return articles;
};
/**
* Generate a new feed.
*
* @returns {Promise<Feed>} - The feed.
*/
export const generateFeed = async (): Promise<Feed> => {
const author = {
name: CONFIG.name,
email: process.env.APP_AUTHOR_EMAIL,
link: CONFIG.url,
};
const copyright = `${CONFIG.name} CC BY SA ${CONFIG.copyright.startYear} - ${CONFIG.copyright.endYear}`;
const title = `${CONFIG.name} | ${CONFIG.baseline}`;
const feed = new Feed({
author,
copyright,
description: process.env.APP_FEED_DESCRIPTION,
feedLinks: {
json: `${CONFIG.url}${ROUTES.RSS}/json`,
atom: `${CONFIG.url}${ROUTES.RSS}/atom`,
},
generator: 'Feed & NextJS',
id: CONFIG.url,
language: CONFIG.locales.defaultLocale,
link: CONFIG.url,
title,
});
const articles = await getAllArticles();
articles.forEach((article) => {
feed.addItem({
content: article.intro,
date: new Date(article.meta.dates.publication),
description: article.intro,
id: `${article.id}`,
link: `${CONFIG.url}${ROUTES.ARTICLE}/${article.slug}`,
title: article.title,
});
});
return feed;
};
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