Initial scaffolding and basic response

Author: timdorr

.gitignore

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+.env

.tool-versions

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+ruby 2.7.1

Gemfile

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+source 'https://rubygems.org'
+
+gem 'puma'
+gem 'sinatra'
+gem 'faraday'
+gem 'faraday_middleware'
+
+group :development do
+  gem 'dotenv'
+end

Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    dotenv (2.7.6)
+    faraday (1.0.1)
+      multipart-post (>= 1.2, < 3)
+    faraday_middleware (1.0.0)
+      faraday (~> 1.0)
+    multipart-post (2.1.1)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
+    nio4r (2.5.3)
+    puma (4.3.6)
+      nio4r (~> 2.0)
+    rack (2.2.3)
+    rack-protection (2.1.0)
+      rack
+    ruby2_keywords (0.0.2)
+    sinatra (2.1.0)
+      mustermann (~> 1.0)
+      rack (~> 2.2)
+      rack-protection (= 2.1.0)
+      tilt (~> 2.0)
+    tilt (2.0.10)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  dotenv
+  faraday
+  faraday_middleware
+  puma
+  sinatra
+
+BUNDLED WITH
+   2.1.4

Procfile

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+web: ruby spotifeed.rb

Rakefile

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+desc "Open an IRB session"
+task :console do
+  # Load all gems
+  require 'rubygems'
+  require 'bundler/setup'
+  Bundler.require(:default)
+
+  # Load the envs
+  require 'dotenv'
+  Dotenv.load!
+
+  # Load IRB
+  require 'irb'
+  require 'irb/completion'
+
+  IRB.conf[:AUTO_INDENT] = true
+
+  ARGV.clear
+  IRB.start
+end

spotifeed.rb

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+require 'rubygems'
+require 'bundler'
+
+Bundler.require
+
+$conn = Faraday.new 'https://api.spotify.com/v1/' do |conn|
+  conn.response :json
+end
+
+class Token
+  def initialize
+    @token_expiry = Time.now
+  end
+
+  def refresh
+    return unless @token_expiry <= Time.now
+
+    res = $conn.post(
+      'https://accounts.spotify.com/api/token',
+      'grant_type=client_credentials',
+      'Authorization' => "Basic #{Base64.strict_encode64("#{ENV['SPOTIFY_CLIENT_ID']}:#{ENV['SPOTIFY_CLIENT_SECRET']}")}"
+    )
+
+    token_expiry = Time.now + res.body["expires_in"]
+    $conn.headers['Authorization'] = "Bearer #{res.body["access_token"]}"
+  end
+end
+
+token = Token.new
+
+get '/' do
+  token.refresh
+
+  JSON.generate $conn.get("shows/#{ENV['SHOW_ID']}?market=US").body
+end