How I added my Spotify statistics to my GitHub readme 📜

#github #showdev #javascript

So there was a new GitHub feature spotted in the wild, where you could have a README on your GitHub profile. So I had an idea, why not build a dynamic README using GitHub actions

GitHub profile README

So what is that GitHub profile README thingy? Its a cool new feature by GitHub which allows you to have a README on your profile. Sounds cool? Surely it is. Time to get creative 😋.

How did I include the Spotify stats on my README?

Part 1: Introduction

The Spotify API allows you to fetch a ton of info, including your liked tracks, your saved albums and your playlists. It requires an OAuth2 authentication for the API

Part 2: Getting an OAuth2 token

So to access the Spotify API, you need to have an OAuth2 token. So how do we get one? Well, the answer is really easy. So we will do it in NodeJS, as I am really comfortable with it. So first, we need to install some dependencies. We will use yarn for it, however, npm will work just fine too.

yarn add isomorphic-unfetch express dotenv

We installed 3 dependencies here, but express and dotenv are only required to obtain a token. So how do we obtain it? Firstly, we need and OAuth2 client_id and client_secret. Visit here to learn more.

	require("dotenv").config();
	require("isomorphic-unfetch");
	const express = require("express");

	const app = express();

	const clientId = process.env.CLIENT_ID;
	const clientSecret = process.env.CLIENT_SECRET;

	const scopes = [
	"user-library-read",
	"playlist-read-private",
	"playlist-read-collaborative",
	"user-read-recently-played",
	];

	console.log("Please visit");
	console.log(
	"https://accounts.spotify.com/authorize" +
	"?response_type=code" +
	"&client_id=" +
	clientId +
	(scopes ? "&scope=" + encodeURIComponent(scopes.join(" ")) : "") +
	"&redirect_uri=" +
	encodeURIComponent("http://localhost:3000")
	);

	app.get("/", async (req, res) => {
	const { code } = req.query;

	if (!code) {
	return res.status(401).send("Not Authorized");
	}

	const data = await (
	await fetch(
	`https://accounts.spotify.com/api/token?grant_type=authorization_code&code=${encodeURIComponent(
	code
	)}&redirect_uri=${encodeURIComponent(
	"http://localhost:3000"
	)}&client_id=${clientId}&client_secret=${clientSecret}`,
	{
	headers: {
	"content-type": "application/x-www-form-urlencoded ",
	},
	method: "POST",
	}
	)
	).text();
	console.log(data);

	return res.send("Authorized, please check console");
	});

	app.listen(3000);

view raw authorize.js hosted with ❤ by GitHub

So what we did here was used the Spotify API to obtain an access_token and a refresh_token. Keep both of them safe, as we need them for later use.

Part 3: The self updating README

So now create a README.template.md with replacement tags like I like {sp_liked} songs accross {sp_abl} albums. I have {sp_pl} playlists of awesome music. Now we need to create an index.js file which does all the magic.

	require("isomorphic-unfetch");
	const { promises: fs } = require("fs");
	const path = require("path");

	const clientId = process.env.SPOTIFY_CLIENT_ID;
	const clientSecret = process.env.SPOTIFY_CLIENT_SECRET;
	const refreshToken = process.env.SPOTIFY_REFRESH_TOKEN;

	async function main() {
	const readmeTemplate = (
	await fs.readFile(path.join(process.cwd(), "./README.template.md"))
	).toString("utf-8");

	const { en: qoth, author: qoth_author } = await (
	await fetch("https://programming-quotes-api.herokuapp.com/quotes/random")
	).json();

	const { access_token } = await (
	await fetch(
	`https://accounts.spotify.com/api/token?grant_type=refresh_token&client_id=${clientId}&client_secret=${clientSecret}&refresh_token=${refreshToken}`,
	{
	headers: {
	"content-type": "application/x-www-form-urlencoded ",
	},
	method: "POST",
	}
	)
	).json();

	const { total: sp_liked } = await (
	await fetch("https://api.spotify.com/v1/me/tracks", {
	headers: {
	Authorization: `Bearer ${access_token}`,
	},
	})
	).json();

	const { total: sp_abl } = await (
	await fetch("https://api.spotify.com/v1/me/albums", {
	headers: {
	Authorization: `Bearer ${access_token}`,
	},
	})
	).json();

	const { total: sp_pl } = await (
	await fetch("https://api.spotify.com/v1/me/playlists", {
	headers: {
	Authorization: `Bearer ${access_token}`,
	},
	})
	).json();

	const readme = readmeTemplate
	.replace("{qoth}", qoth)
	.replace("{qoth_author}", qoth_author)
	.replace("{sp_liked}", sp_liked)
	.replace("{sp_abl}", sp_abl)
	.replace("{sp_pl}", sp_pl);

	await fs.writeFile("README.md", readme);
	}

	main();

view raw index.js hosted with ❤ by GitHub

Here, we use the refresh_token, the client_id and the client_secret to get a new access_token and get our profile information. As a bonus, I also used the Programming Quotes API to get the quote of the hour.

Part 4: Putting it all together

Now we have created the scripts, we need to automate it to update the README every hour. For this, we will use GitHub's actions.
Before that, we need to put out refresh_token, the client_id and the client_secret in out GitHub secrets as we will need them for the action.

	name: Generate README every 1 hour

	on:
	schedule:
	- cron: "0 * * * *"
	workflow_dispatch:

	jobs:
	stuff:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Let the magic happen
	uses: actions/setup-node@v1
	with:
	node-version: 14.6.0

	- run: yarn

	- run: node .
	env:
	SPOTIFY_CLIENT_ID: ${{ secrets.SPOTIFY_CLIENT_ID }}
	SPOTIFY_CLIENT_SECRET: ${{ secrets.SPOTIFY_CLIENT_SECRET }}
	SPOTIFY_REFRESH_TOKEN: ${{ secrets.SPOTIFY_REFRESH_TOKEN }}

	- name: Add to git repo
	run: \|
	git add .
	git config --global user.name "Your Name"
	git config --global user.email "Your E-Mail"
	git commit -m "[Magic] Automated README update"
	- name: Push
	uses: ad-m/github-push-action@master
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}