add basic functionality

.eslintrc.js

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+module.exports = {
+    "extends": "airbnb-base",
+    "rules": {
+        "indent": ["error", 4]
+    }
+};

.gitignore

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+node_modules

index.js

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+const request = require('request');
+const TurndownService = require('turndown');
+const util = require('util');
+const fs = require('fs');
+const cheerio = require('cheerio');
+
+const asyncGetRequest = util.promisify(request.get).bind(request);
+const asyncWriteFile = util.promisify(fs.writeFile).bind(fs);
+
+const turndownService = new TurndownService();
+
+async function convert(url) {
+    try {
+        const resp = await asyncGetRequest(url);
+        if (resp.statusCode !== 200) {
+            console.log('Error while fetching URL');
+            return resp.statusMessage;
+        }
+        const $ = cheerio.load(resp.body);
+        const html = $('.postArticle-content').html();
+        const markdown = turndownService.turndown(html);
+        const time = $('time').attr('datetime').split('T')[0];
+        const heading = $('h1', '.section-inner.sectionLayout--insetColumn')
+            .html();
+        return Promise.resolve({ markdown, heading, time });
+    } catch (err) {
+        return Promise.reject(err);
+    }
+}
+
+async function generateFile(data) {
+    try {
+        const fileName = `${data.time}-${data.heading}.md`;
+        await asyncWriteFile(fileName, data.markdown);
+        console.log(`Success - Written file ${fileName}`);
+    } catch (err) {
+        console.log(err);
+    }
+}
+
+module.exports = {
+    convert,
+    generateFile,
+};