Spotify

https://developer.spotify.com/dashboard/applications

Does not allow you to get friend info, must give ids and then you can see if they follow those specific ids.

Songs API

Builtin API to get the top songs for the user

Elixir - https://github.com/jsncmgs1/spotify_ex

        types = ["artists", "tracks"]
        ranges = ["short_term", "medium_term", "long_term"]

        all_results =
          Enum.map(types, fn type ->
            range_results =
              Enum.map(ranges, fn range ->
                url =
                  "https://api.spotify.com/v1/me/top/#{type}?time_range=#{range}&limit=#{limit}"

                %HTTPoison.Response{status_code: 200, body: rawBody} =
                  HTTPoison.get!(url, headers)

                body = Jason.decode!(rawBody)
                {range, body["items"]}
              end)
              |> Map.new()

            {type, range_results}
          end)
          |> Map.new()
          |> IO.inspect()

        json(conn, all_results)

Web Audio Player

Can play full songs in the web for a user, but doesn't have access to the full audio data

import React, { useEffect, useState, useRef } from "react";
import PropTypes from "prop-types";
const debug = require("debug")("app:Test");

const SPOTIFY_TOKEN = "BQDpDPTaaaxAPycaj38UOEasxoQHmr91MIBfFge61aHjyJDLNDNqX-Dq1riXSrKhHSXv2ITgzbQuGBK4OkJvN0JWt6R_T7-pTUo3taxxn2nL33hNljzyl2czWGqBBmjcx9HFk9hTD11Cq0OoHnjD-qujfffFau2ljX7nO0_Iw";

function Test(props) {
  const playerR = useRef(null);

  useEffect(() => {
    window.onSpotifyWebPlaybackSDKReady = () => {
      const player = new Spotify.Player({
        name: "Spotify Cat Player",
        getOAuthToken: (cb) => {
          cb(SPOTIFY_TOKEN);
        },
      });

      // Error handling
      player.addListener("initialization_error", ({ message }) => {
        console.error(message);
      });
      player.addListener("authentication_error", ({ message }) => {
        console.error(message);
      });
      player.addListener("account_error", ({ message }) => {
        console.error(message);
      });
      player.addListener("playback_error", ({ message }) => {
        console.error(message);
      });

      // Playback status updates
      player.addListener("player_state_changed", (state) => {
        debug("player_state_changed", state);
      });

      // Ready
      player.addListener("ready", ({ device_id }) => {
        debug("Ready with Device ID", device_id);
        play({
          playerInstance: player,
          spotify_uri: "spotify:track:6Gu1BaGI5ijqEqK3g6gvMi",
        });
        navigator.mediaDevices
          .getDisplayMedia({ audio: true, video: true })
          .then((d) => debug("GET DISPLAY", d))
          .catch((err) => {
            debug("FAILED TO GET");
            console.error(err);
          });
      });

      // Not Ready
      player.addListener("not_ready", ({ device_id }) => {
        debug("Device ID has gone offline", device_id);
      });

      player.connect().then(() => {
        debug("CONNECTED PLAYER");
      });

      playerR.current = player;
    };
  }, []);

  return <div> Test </div>;
}

const play = ({
  spotify_uri,
  playerInstance: {
    _options: { getOAuthToken, id },
  },
}) => {
  getOAuthToken((access_token) => {
    debug("FETCHED access_token", access_token);
    fetch(`https://api.spotify.com/v1/me/player/play?device_id=${id}`, {
      method: "PUT",
      body: JSON.stringify({ uris: [spotify_uri] }),
      headers: {
        "Content-Type": "application/json",
        Authorization: `Bearer ${access_token}`,
      },
    })
      .then((resp) => debug("GOT it", resp))
      .catch(console.error);
  });
};

Test.propTypes = {};
export default Test;