class FaradayMiddleware::RaiseHttpException

@private

Public Class Methods

new(app) click to toggle source
Calls superclass method
# File lib/faraday/raise_http_exception.rb, line 33
def initialize(app)
  super app
  @parser = nil
end

Public Instance Methods

call(env) click to toggle source
# File lib/faraday/raise_http_exception.rb, line 10
def call(env)
  @app.call(env).on_complete do |response|
    case response[:status].to_i
    when 400
      raise Instagram::BadRequest, error_message_400(response)
    when 403
      raise Instagram::Forbidden, error_message_400(response)
    when 404
      raise Instagram::NotFound, error_message_400(response)
    when 429
      raise Instagram::TooManyRequests, error_message_400(response)
    when 500
      raise Instagram::InternalServerError, error_message_500(response, "Something is technically wrong.")
    when 502
      raise Instagram::BadGateway, error_message_500(response, "The server returned an invalid or incomplete response.")
    when 503
      raise Instagram::ServiceUnavailable, error_message_500(response, "Instagram is rate limiting your requests.")
    when 504
      raise Instagram::GatewayTimeout, error_message_500(response, "504 Gateway Time-out")
    end
  end
end

Private Instance Methods

error_body(body) click to toggle source
# File lib/faraday/raise_http_exception.rb, line 44
def error_body(body)
  # body gets passed as a string, not sure if it is passed as something else from other spots?
  if not body.nil? and not body.empty? and body.kind_of?(String)
    # removed multi_json thanks to wesnolte's commit
    body = begin
      ::JSON.parse(body)
    rescue JSON::ParserError => e
      # handle HTML response here as empty JSON
      if e.message.match /unexpected token/
        nil
      else
        raise e
      end
    end
  end

  if body.nil?
    nil
  elsif body['meta'] and body['meta']['error_message'] and not body['meta']['error_message'].empty?
    ": #{body['meta']['error_message']}"
  elsif body['error_message'] and not body['error_message'].empty?
    ": #{body['error_type']}: #{body['error_message']}"
  end
end
error_message_400(response) click to toggle source
# File lib/faraday/raise_http_exception.rb, line 40
def error_message_400(response)
  "#{response[:method].to_s.upcase} #{response[:url].to_s}: #{response[:status]}#{error_body(response[:body])}"
end
error_message_500(response, body=nil) click to toggle source
# File lib/faraday/raise_http_exception.rb, line 69
def error_message_500(response, body=nil)
  "#{response[:method].to_s.upcase} #{response[:url].to_s}: #{[response[:status].to_s + ':', body].compact.join(' ')}"
end