melanie / Pixelfed Export Downloader to Markdown

import { stringify } from "yaml"; import fs from "node:fs"; import https from "node:https"; import sanitize from "sanitize-html"; function omit(obj, props) { obj = { ...obj }; props.forEach((prop) => delete obj[prop]); return obj; } function readJsonFile(file = "./outbox.json") { const data = fs.readFileSync(file); return JSON.parse(data); } function processOutbox(outbox) { return outbox.map((item) => { const body = sanitize(item.content, { allowedTags: [], allowedAttributes: {}, }); return { id: item.id.split("/").at(-1), date: item.published, body, tags: body.match(/(?<=\#)\w*/g), attachments: item.attachment.map((el) => ({ altText: el.summary, type: el.mediaType, url: el.url, })), }; }); } function writeFiles(data, outputDir = "./out") { if (!fs.existsSync(outputDir)) { fs.mkdirSync(outputDir); } for (const item of data) { const id = item.id; item.attachments = item.attachments.map((attachment, idx) => { const extension = attachment.url.split(".").at(-1); const fileName = `${id}${idx > 0 ? `-${idx}` : ""}.${extension}`; const fileStream = fs.createWriteStream(`${outputDir}/${fileName}`); https.get(attachment.url, (res) => res.pipe(fileStream)); attachment.url = `./${fileName}`; return attachment; }); const yaml = stringify(omit(item, ["id"])); const file = `---\n${yaml}---\n\n${item.body}\n`; fs.writeFileSync(`${outputDir}/${id}.md`, file); } } function main() { const outbox = readJsonFile(); const processedOutbox = processOutbox(outbox); writeFiles(processedOutbox); } main();