Class: Metronome::Configuration

Inherits:
Object
  • Object
show all
Defined in:
lib/metronome/configuration.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize {|_self| ... } ⇒ Configuration

Returns a new instance of Configuration.

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/metronome/configuration.rb', line 151

def initialize
  @scheme = 'https'
  @host = nil
  @customer_id = nil
  @region = nil
  @use_production_instance = true
  @base_path = ''
  @server_index = 0
  @server_operation_index = {}
  @server_variables = {}
  @server_operation_variables = {}
  @api_key = {}
  @api_key_prefix = {}
  @client_side_validation = true
  @verify_ssl = true
  @verify_ssl_host = true
  @cert_file = nil
  @key_file = nil
  @timeout = 0
  @params_encoding = nil
  @debugging = false
  @inject_format = false
  @force_ending_format = false
  @logger = defined?(Rails) ? Rails.logger : Logger.new(STDOUT)

  yield(self) if block_given?
end

Instance Attribute Details

#access_token ⇒ Object

Defines the access token (Bearer) used with OAuth2.



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# File 'lib/metronome/configuration.rb', line 63

def access_token
  @access_token
end

#access_token_getter ⇒ Proc

Defines a Proc used to fetch or refresh access tokens (Bearer) used with OAuth2. Overrides the access_token if set

Returns:

  • (Proc) 


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# File 'lib/metronome/configuration.rb', line 68

def access_token_getter
  @access_token_getter
end

#api_key ⇒ Hash

Defines API keys used with API Key authentications.

Examples:

parameter name is “api_key”, API key is “xxx” (e.g. “api_key=xxx” in query string)

config.api_key['api_key'] = 'xxx'

Returns:

  • (Hash) —

    key: parameter name, value: parameter value (API key)



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# File 'lib/metronome/configuration.rb', line 42

def api_key
  @api_key
end

#api_key_prefix ⇒ Hash

Defines API key prefixes used with API Key authentications.

Examples:

parameter name is “Authorization”, API key prefix is “Token” (e.g. “Authorization: Token xxx” in headers)

config.api_key_prefix['api_key'] = 'Token'

Returns:

  • (Hash) —

    key: parameter name, value: API key prefix



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# File 'lib/metronome/configuration.rb', line 50

def api_key_prefix
  @api_key_prefix
end

#base_path ⇒ Object

Defines url base path



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# File 'lib/metronome/configuration.rb', line 22

def base_path
  @base_path
end

#cert_file ⇒ Object

TLS/SSL setting Client certificate file (for client certificate)



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# File 'lib/metronome/configuration.rb', line 128

def cert_file
  @cert_file
end

#client_side_validation ⇒ true, false

Set this to false to skip client side validation in the operation. Default to true.

Returns:

  • (true, false) 


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# File 'lib/metronome/configuration.rb', line 97

def client_side_validation
  @client_side_validation
end

#customer_id ⇒ Object

PDS patch: attributes for configurating the host



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# File 'lib/metronome/configuration.rb', line 147

def customer_id
  @customer_id
end

#debugging ⇒ true, false

Set this to enable/disable debugging. When enabled (set to true), HTTP request/response details will be logged with ‘logger.debug` (see the `logger` attribute). Default to false.

Returns:

  • (true, false) 


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# File 'lib/metronome/configuration.rb', line 75

def debugging
  @debugging
end

#force_ending_format ⇒ Object

Returns the value of attribute force_ending_format.



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# File 'lib/metronome/configuration.rb', line 144

def force_ending_format
  @force_ending_format
end

#host ⇒ Object

Defines url host



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# File 'lib/metronome/configuration.rb', line 19

def host
  @host
end

#inject_format ⇒ Object

Returns the value of attribute inject_format.



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# File 'lib/metronome/configuration.rb', line 142

def inject_format
  @inject_format
end

#key_file ⇒ Object

TLS/SSL setting Client private key file (for client certificate)



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# File 'lib/metronome/configuration.rb', line 132

def key_file
  @key_file
end

#logger ⇒ #debug

Defines the logger used for debugging. Default to ‘Rails.logger` (when in Rails) or logging to STDOUT.

Returns:

  • (#debug) 


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# File 'lib/metronome/configuration.rb', line 81

def logger
  @logger
end

#params_encoding ⇒ Object

Set this to customize parameters encoding of array parameter with multi collectionFormat. Default to nil.

github.com/typhoeus/ethon/blob/master/lib/ethon/easy/queryable.rb#L96

See Also:

  • params_encoding option of Ethon. Related source code:


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# File 'lib/metronome/configuration.rb', line 139

def params_encoding
  @params_encoding
end

#password ⇒ String

Defines the password used with HTTP basic authentication.

Returns:

  • (String) 


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# File 'lib/metronome/configuration.rb', line 60

def password
  @password
end

#region ⇒ Object

Returns the value of attribute region.



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# File 'lib/metronome/configuration.rb', line 148

def region
  @region
end

#scheme ⇒ Object

Defines url scheme



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# File 'lib/metronome/configuration.rb', line 16

def scheme
  @scheme
end

#server_index ⇒ Object

Define server configuration index



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# File 'lib/metronome/configuration.rb', line 25

def server_index
  @server_index
end

#server_operation_index ⇒ Object

Define server operation configuration index



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# File 'lib/metronome/configuration.rb', line 28

def server_operation_index
  @server_operation_index
end

#server_operation_variables ⇒ Object

Default server operation variables



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# File 'lib/metronome/configuration.rb', line 34

def server_operation_variables
  @server_operation_variables
end

#server_variables ⇒ Object

Default server variables



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# File 'lib/metronome/configuration.rb', line 31

def server_variables
  @server_variables
end

#ssl_ca_cert ⇒ String

TLS/SSL setting Set this to customize the certificate file to verify the peer.

github.com/typhoeus/typhoeus/blob/master/lib/typhoeus/easy_factory.rb#L145

Returns:

  • (String) —

    the path to the certificate file

See Also:

  • `cainfo` option of Typhoeus, `--cert` option of libcurl. Related source code:


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# File 'lib/metronome/configuration.rb', line 124

def ssl_ca_cert
  @ssl_ca_cert
end

#temp_folder_path ⇒ String

Defines the temporary folder to store downloaded files (for API endpoints that have file response). Default to use ‘Tempfile`.

Returns:

  • (String) 


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# File 'lib/metronome/configuration.rb', line 88

def temp_folder_path
  @temp_folder_path
end

#timeout ⇒ Object

The time limit for HTTP request in seconds. Default to 0 (never times out).



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# File 'lib/metronome/configuration.rb', line 92

def timeout
  @timeout
end

#use_production_instance ⇒ Object

Returns the value of attribute use_production_instance.



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# File 'lib/metronome/configuration.rb', line 149

def use_production_instance
  @use_production_instance
end

#username ⇒ String

Defines the username used with HTTP basic authentication.

Returns:

  • (String) 


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# File 'lib/metronome/configuration.rb', line 55

def username
  @username
end

#verify_ssl ⇒ true, false

Note:

Do NOT set it to false in production code, otherwise you would face multiple types of cryptographic attacks.

TLS/SSL setting Set this to false to skip verifying SSL certificate when calling API from https server. Default to true.

Returns:

  • (true, false) 


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# File 'lib/metronome/configuration.rb', line 106

def verify_ssl
  @verify_ssl
end

#verify_ssl_host ⇒ true, false

Note:

Do NOT set it to false in production code, otherwise you would face multiple types of cryptographic attacks.

TLS/SSL setting Set this to false to skip verifying SSL host name Default to true.

Returns:

  • (true, false) 


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# File 'lib/metronome/configuration.rb', line 115

def verify_ssl_host
  @verify_ssl_host
end

Class Method Details

.default ⇒ Object

The default Configuration object.



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# File 'lib/metronome/configuration.rb', line 193

def self.default
  @@default ||= Configuration.new
end

Instance Method Details

#access_token_with_refresh ⇒ Object

Gets access_token using access_token_getter or uses the static access_token



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# File 'lib/metronome/configuration.rb', line 239

def access_token_with_refresh
    return access_token if access_token_getter.nil?
    access_token_getter.call
end

#api_key_with_prefix(param_name, param_alias = nil) ⇒ Object

Gets API key (with prefix if set).

Parameters:

  • param_name (String) —

    the parameter name of API key auth



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# File 'lib/metronome/configuration.rb', line 228

def api_key_with_prefix(param_name, param_alias = nil)
  key = @api_key[param_name]
  key = @api_key.fetch(param_alias, key) unless param_alias.nil?
  if @api_key_prefix[param_name]
    "#{@api_key_prefix[param_name]} #{key}"
  else
    key
  end
end

#auth_settings ⇒ Object

Returns Auth Settings hash for api client.



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# File 'lib/metronome/configuration.rb', line 250

def auth_settings
  {
    'ApiKeyAuth' =>
      {
        type: 'api_key',
        in: 'header',
        key: 'X-API-Key',
        value: api_key_with_prefix('ApiKeyAuth')
      },
  }
end

#base_url(operation = nil) ⇒ Object

Returns base URL for specified operation based on server settings



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# File 'lib/metronome/configuration.rb', line 219

def base_url(operation = nil)
  index = server_operation_index.fetch(operation, server_index)
  return "#{scheme}://#{[host, base_path].join('/').gsub(/\/+/, '/')}".sub(/\/+\z/, '') if index == nil

  server_url(index, server_operation_variables.fetch(operation, server_variables), operation_server_settings[operation])
end

#basic_auth_token ⇒ Object

Gets Basic Auth token string



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# File 'lib/metronome/configuration.rb', line 245

def basic_auth_token
  'Basic ' + ["#{username}:#{password}"].pack('m').delete("\r\n")
end

#check_required_attributes ⇒ Object

PDS patch: construct the host from required attributes.

Raises:

  • (RuntimeError) 


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# File 'lib/metronome/configuration.rb', line 180

def check_required_attributes
  raise RuntimeError, "You must specify a customer_id" if customer_id.nil?
  raise RuntimeError, "You must specify a region" if region.nil?
  raise RuntimeError, "customer_id may only contain characters [A-za-z0-9\-]" if customer_id !~ /^[A-Za-z0-9\-]+$/

  available_regions = ["eu-north-1"]
  raise RuntimeError, "Region #{region} must be one of the available regions #{available_regions}" if not available_regions.include?(region)
  raise RuntimeError, "use_production_instance must be true or false" if not use_production_instance.instance_of?(TrueClass) || use_production_instance.instance_of?(FalseClass)

  @host = use_production_instance ? "#{customer_id}.api.#{region}.privatedataservices.com" : "#{customer_id}.dev-api.#{region}.privatedataservices.com"
end

#configure {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/metronome/configuration.rb', line 197

def configure
  yield(self) if block_given?
  check_required_attributes
end

#operation_server_settings ⇒ Object 



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# File 'lib/metronome/configuration.rb', line 272

def operation_server_settings
  {
  }
end

#server_settings ⇒ Object

Returns an array of Server setting



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# File 'lib/metronome/configuration.rb', line 263

def server_settings
  [
    {
      url: "#{scheme}://#{host}",  # PDS patch
      description: "An example of your API url.",
    }
  ]
end

#server_url(index, variables = {}, servers = nil) ⇒ Object

Returns URL based on server settings

Parameters:

  • index —

    array index of the server settings

  • variables (defaults to: {}) —

    hash of variable and the corresponding value



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# File 'lib/metronome/configuration.rb', line 281

def server_url(index, variables = {}, servers = nil)
  servers = server_settings if servers == nil

  # check array index out of bound
  if (index < 0 || index >= servers.size)
    fail ArgumentError, "Invalid index #{index} when selecting the server. Must be less than #{servers.size}"
  end

  server = servers[index]
  url = server[:url]

  return url unless server.key? :variables

  # go through variable and assign a value
  server[:variables].each do |name, variable|
    if variables.key?(name)
      if (!server[:variables][name].key?(:enum_values) || server[:variables][name][:enum_values].include?(variables[name]))
        url.gsub! "{" + name.to_s + "}", variables[name]
      else
        fail ArgumentError, "The variable `#{name}` in the server URL has invalid value #{variables[name]}. Must be #{server[:variables][name][:enum_values]}."
      end
    else
      # use default value
      url.gsub! "{" + name.to_s + "}", server[:variables][name][:default_value]
    end
  end

  url
end