Class: MercadoBitcoin::BaseApiCall

Inherits:
Object
  • Object
show all
Defined in:
lib/mercado_bitcoin/base_api_call.rb

Direct Known Subclasses

OrderBook, Ticker, Trade

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(coin = :bitcoin, opts = {}) ⇒ BaseApiCall

Returns a new instance of BaseApiCall.

Raises:



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 4

def initialize(coin = :bitcoin, opts = {})
  @coin               = coin.to_s.downcase.to_sym
  raise MercadoBitcoin::CoinTypeError.new("bitcoin or litecoin expected #{coin} received") unless valid_coin?
  @parser             = opts[:parser]             || JSON
  @rest_client        = opts[:rest_client]        || RestClient
  @parser_error_class = opts[:parser_error_class] || JSON::ParserError
end

Instance Attribute Details

#coin ⇒ Object

Returns the value of attribute coin.



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 3

def coin
  @coin
end

#parsed ⇒ Object

Returns the value of attribute parsed.



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 3

def parsed
  @parsed
end

#parser ⇒ Object

Returns the value of attribute parser.



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 3

def parser
  @parser
end

#parser_error_class ⇒ Object

Returns the value of attribute parser_error_class.



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 3

def parser_error_class
  @parser_error_class
end

#response ⇒ Object (readonly)

Returns the value of attribute response.



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 53

def response
  @response
end

#rest_client ⇒ Object

Returns the value of attribute rest_client.



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 3

def rest_client
  @rest_client
end

Instance Method Details

#action ⇒ Object 



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 25

def action
  ''
end

#base_url ⇒ Object 



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 29

def base_url
  @base_url ||= "https://www.mercadobitcoin.net/api".freeze
end

#bitcoin? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mercado_bitcoin/base_api_call.rb', line 33

def bitcoin?
  coin == :bitcoin
end

#fetch ⇒ Object 



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 16

def fetch
  @parsed = parse(get(url))
  model.new(parsed)
end

#get(url) ⇒ Object 



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 55

def get(url)
  @response = rest_client.get(url)
end

#litecoin? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mercado_bitcoin/base_api_call.rb', line 37

def litecoin?
  coin == :litecoin
end

#model ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/mercado_bitcoin/base_api_call.rb', line 21

def model
  raise NotImplementedError.new
end

#params ⇒ Object 



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 41

def params
  {}
end

#parse(body) ⇒ Object 



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 59

def parse(body)
  parser.parse(body)
rescue parser_error_class
  raise MercadoBitcoin::ParserError.new("#{url} responded an invalid json data")
end

#url ⇒ Object 



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# File 'lib/mercado_bitcoin/base_api_call.rb', line 45

def url
  return @url if @url
  ac = action.is_a?(String) && action != '' ? File.join(base_url, action) : base_url
  @url = URI.parse(ac)
  @url.query = URI.encode_www_form(params) if !params.nil? && !params.empty?
  @url = @url.to_s
end

#valid_coin? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mercado_bitcoin/base_api_call.rb', line 12

def valid_coin?
  bitcoin? || litecoin?
end