search-spotify.rb

#!/usr/bin/env ruby
require 'open-uri'
require 'json'
require 'uri'
require 'pp'

# search-spotify
#
# Takes a bunch of songs, in `Artist - Title` format from STDIN and searches
# Spotify for them, one-by-one, outputting track URIs on STDOUT. Suitable for
# copying and pasting into a new Spotify playlist.
#
# Not affiliated or connected to Spotify in any way. (Except uses their official
# API... which is pretty neat!)

not_found = []

ARGF.each do |line|
  next if line.match(/@/)

  artist, title = *line.chomp.split(' - ').map {|s| s.to_s.strip.gsub('-', ' ') }
  url = "https://api.spotify.com/v1/search?q=artist:#{URI.encode(artist)}*%20title:#{URI.encode(title)}*&type=track&market=US&limit=1"

  json = JSON.parse(open(url).read)

  id = json['tracks']['items'][0]['uri'] rescue nil

  if id
    puts id
  else
    not_found << "#{artist} - #{title}"
  end

  sleep 0.5
end

if not_found != []
  $stderr.puts "Not found: #{not_found.join(', ')}"
end