Class: Twitchus::Checker

Inherits:
Object
  • Object
show all
Defined in:
lib/twitchus/checker.rb

Instance Method Summary collapse

Constructor Details

#initialize(config = nil) ⇒ Checker

Returns a new instance of Checker.



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# File 'lib/twitchus/checker.rb', line 7

def initialize(config = nil)
  @config = config
end

Instance Method Details

#base_url ⇒ Object 



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# File 'lib/twitchus/checker.rb', line 53

def base_url
  "https://api.twitch.tv/kraken/streams/"
end

#check(channel) ⇒ Object 



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# File 'lib/twitchus/checker.rb', line 20

def check(channel)
  raise ArgumentError, "Channel is required." unless channel
  response = RestClient.get(base_url + channel)
  response = JSON.parse(response)

  response["stream"]
rescue RestClient::BadRequest => e
  $stderr.puts "Request failed due to rate limit, channel: #{channel}, #{e}"
  nil
rescue RestClient::ResourceNotFound => e
  $stderr.puts "Stream #{channel} is not available anymore"
  nil
rescue RestClient::RequestTimeout => e
  $stderr.puts "Request to a channel #{channel} timed out"
  nil
rescue RestClient::UnprocessableEntity => e
  $stderr.puts "API responded with 422 error #{e}"
  nil
rescue RestClient::ServiceUnavailable => e
  $stderr.puts "API service is not available #{e}"
  nil
end

#check_all(channels) ⇒ Object

Return a list of online channel names



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# File 'lib/twitchus/checker.rb', line 16

def check_all(channels)
  channels.select { |channel| online?(channel) }
end

#fetch_all(channels) ⇒ Object 



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# File 'lib/twitchus/checker.rb', line 11

def fetch_all(channels)
  channels.map { |channel| check(channel) }.select { |c| !c.nil? }
end

#online?(channel) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/twitchus/checker.rb', line 43

def online?(channel)
  !check(channel).nil?
end

#url_for(channel) ⇒ Object 



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# File 'lib/twitchus/checker.rb', line 47

def url_for(channel)
  url = base_url + channel
  url += "?client_key=#{@config.client_key}" if @config
  url
end