Class: Ordrin::APIHelper

Inherits:
Object
  • Object
show all
Defined in:
lib/ordrin/api_helper.rb

Instance Method Summary collapse

Constructor Details

#initialize(api_key, servers) ⇒ APIHelper

Returns a new instance of APIHelper.



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# File 'lib/ordrin/api_helper.rb', line 10

def initialize(api_key, servers)
  @api_key = api_key
  @urls = {}
  if servers==:production
    @urls[:restaurant] = "https://r.ordr.in"
    @urls[:user] = "https://u.ordr.in"
    @urls[:order] = "https://o.ordr.in"
  elsif servers==:test
    @urls[:restaurant] = "https://r-test.ordr.in"
    @urls[:user] = "https://u-test.ordr.in"
    @urls[:order] = "https://o-test.ordr.in"
  else
    raise ArgumentError.new("servers must be set to :production, :test, or :custom")
  end
  dir = File.dirname(__FILE__)
  @ENDPOINT_INFO = JSON.parse!(File.read(File.join(dir, "schemas.json")))
end

Instance Method Details

#call_api(base_url, method, uri, data = nil, login = nil) ⇒ Object 



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# File 'lib/ordrin/api_helper.rb', line 28

def call_api(base_url, method, uri, data=nil, =nil)
  methods = {"GET" => Net::HTTP::Get,
    "POST" => Net::HTTP::Post,
    "PUT" => Net::HTTP::Put,
    "DELETE" => Net::HTTP::Delete}
  method = methods[method]
  full_url = URI.parse(base_url+uri)
  req = method.new(full_url.request_uri)
  if not data.nil?
    req.body = URI.encode_www_form(data)
  end
  if not @api_key.empty?
    req['X-NAAMA-CLIENT-AUTHENTICATION'] = "id=\"#{@api_key}\", version=\"1\""
  end
  if not .nil?
    hash_code = Digest::SHA256.new.hexdigest("#{[:password]}#{[:email]}#{uri}")
    req['X-NAAMA-AUTHENTICATION'] = "username=\"#{[:email]}\", response=\"#{hash_code}\", version=\"1\""
  end
  http = Net::HTTP.new(full_url.host, full_url.port)
  if full_url.scheme == "https"
    http.use_ssl = true
    http.ca_file = File.join(File.dirname(__FILE__), "cacert.pem")
  end
  res = http.start {|http| http.request(req)}
  #error if not OK response
  result = JSON.parse(res.body)
  if result.is_a? Hash
    if (result.has_key?('_error') and result['_error']!=0) or (result.has_key?('_err') and result['_err']!=0)
      raise res.body
    end
  end
  result
end

#call_endpoint(endpoint_group, endpoint_name, url_params, kwargs) ⇒ Object 



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# File 'lib/ordrin/api_helper.rb', line 62

def call_endpoint(endpoint_group, endpoint_name, url_params, kwargs)
  endpoint_data = @ENDPOINT_INFO[endpoint_group.to_s][endpoint_name]
  value_mutators = {};
  endpoint_data["properties"].each do |name, info|
    if info.has_key?("mutator")
      value_mutators[name] = Mutate.method(info["mutator"].intern)
    else
      value_mutators[name] = Mutate.method(:identity)
    end
  end
  if endpoint_data.has_key?("allOf")
    endpoint_data["allOf"].each do |subschema|
      subschema["oneOf"].each do |option|
        option["properties"].each do |name, info|
          if info.has_key?("mutator")
            value_mutators[name] = Mutate.method(info["mutator"].intern)
          else
            value_mutators[name] = Mutate.method(:identity)
          end
        end
      end
    end
  end
  if not value_mutators.has_key?("email")
    value_mutators["email"] = Mutate.method(:identity)
  end
  JSON::Validator.validate!(endpoint_data, kwargs)
  arg_dict = {}
  url_params.each do |name|
    arg_dict[name.intern] = URI.encode(value_mutators[name].call(kwargs[name]))
  end

  data = {}
  kwargs.each do |name, value|
    if value_mutators.has_key?(name)
      data[name] = value_mutators[name].call(value)
    end
  end
  data.keep_if do |name, value|
    not (url_params.include?(name) or name == "current_password")
  end
  if data.empty?
    data = nil
  end
  tmpl = endpoint_data["meta"]["uri"].gsub(/\{.+?\}/, '%\0')
  uri = tmpl % arg_dict
   = nil
  if endpoint_data["meta"]["userAuth"]
    if not (kwargs.has_key?("email") and kwargs.has_key?("current_password"))
      raise ArgumentError.new("Authenticated request requires arguments 'email' and 'current_password'")
    end
     = {email: kwargs["email"], password: Mutate.sha256(kwargs["current_password"])}
  end
  call_api(@urls[endpoint_group], endpoint_data["meta"]["method"], uri, data, )
end