=begin #Velo Payments APIs ### Terms and Definitions Throughout this document and the Velo platform the following terms are used: * **Payor.** An entity (typically a corporation) which wishes to pay funds to one or more payees via a payout. * **Payee.** The recipient of funds paid out by a payor. * **Payment.** A single transfer of funds from a payor to a payee. * **Payout.** A batch of Payments, typically used by a payor to logically group payments (e.g. by business day). Technically there need be no relationship between the payments in a payout - a single payout can contain payments to multiple payees and/or multiple payments to a single payee. * **Sandbox.** An integration environment provided by Velo Payments which offers a similar API experience to the production environment, but all funding and payment events are simulated, along with many other services such as OFAC sanctions list checking. ## Overview The Velo Payments API allows a payor to perform a number of operations. The following is a list of the main capabilities in a natural order of execution: * Authenticate with the Velo platform * Maintain a collection of payees * Query the payor’s current balance of funds within the platform and perform additional funding * Issue payments to payees * Query the platform for a history of those payments This document describes the main concepts and APIs required to get up and running with the Velo Payments platform. It is not an exhaustive API reference. For that, please see the separate Velo Payments API Reference. ## API Considerations The Velo Payments API is REST based and uses the JSON format for requests and responses. Most calls are secured using OAuth 2 security and require a valid authentication access token for successful operation. See the Authentication section for details. Where a dynamic value is required in the examples below, the {token} format is used, suggesting that the caller needs to supply the appropriate value of the token in question (without including the { or } characters). Where curl examples are given, the –d @filename.json approach is used, indicating that the request body should be placed into a file named filename.json in the current directory. Each of the curl examples in this document should be considered a single line on the command-line, regardless of how they appear in print. ## Authenticating with the Velo Platform Once Velo backoffice staff have added your organization as a payor within the Velo platform sandbox, they will create you a payor Id, an API key and an API secret and share these with you in a secure manner. You will need to use these values to authenticate with the Velo platform in order to gain access to the APIs. The steps to take are explained in the following: create a string comprising the API key (e.g. 44a9537d-d55d-4b47-8082-14061c2bcdd8) and API secret (e.g. c396b26b-137a-44fd-87f5-34631f8fd529) with a colon between them. E.g. 44a9537d-d55d-4b47-8082-14061c2bcdd8:c396b26b-137a-44fd-87f5-34631f8fd529 base64 encode this string. E.g.: NDRhOTUzN2QtZDU1ZC00YjQ3LTgwODItMTQwNjFjMmJjZGQ4OmMzOTZiMjZiLTEzN2EtNDRmZC04N2Y1LTM0NjMxZjhmZDUyOQ== create an HTTP **Authorization** header with the value set to e.g. Basic NDRhOTUzN2QtZDU1ZC00YjQ3LTgwODItMTQwNjFjMmJjZGQ4OmMzOTZiMjZiLTEzN2EtNDRmZC04N2Y1LTM0NjMxZjhmZDUyOQ== perform the Velo authentication REST call using the HTTP header created above e.g. via curl: ``` curl -X POST \\ -H \"Content-Type: application/json\" \\ -H \"Authorization: Basic NDRhOTUzN2QtZDU1ZC00YjQ3LTgwODItMTQwNjFjMmJjZGQ4OmMzOTZiMjZiLTEzN2EtNDRmZC04N2Y1LTM0NjMxZjhmZDUyOQ==\" \\ 'https://api.sandbox.velopayments.com/v1/authenticate?grant_type=client_credentials' ``` If successful, this call will result in a **200** HTTP status code and a response body such as: ``` { \"access_token\":\"19f6bafd-93fd-4747-b229-00507bbc991f\", \"token_type\":\"bearer\", \"expires_in\":1799, \"scope\":\"...\" } ``` ## API access following authentication Following successful authentication, the value of the access_token field in the response (indicated in green above) should then be presented with all subsequent API calls to allow the Velo platform to validate that the caller is authenticated. This is achieved by setting the HTTP Authorization header with the value set to e.g. Bearer 19f6bafd-93fd-4747-b229-00507bbc991f such as the curl example below: ``` -H \"Authorization: Bearer 19f6bafd-93fd-4747-b229-00507bbc991f \" ``` If you make other Velo API calls which require authorization but the Authorization header is missing or invalid then you will get a **401** HTTP status response. The version of the OpenAPI document: 2.20.29 Generated by: https://openapi-generator.tech OpenAPI Generator version: 4.3.0-SNAPSHOT =end module VeloPayments class Configuration # Defines url scheme attr_accessor :scheme # Defines url host attr_accessor :host # Defines url base path attr_accessor :base_path # Defines API keys used with API Key authentications. # # @return [Hash] key: parameter name, value: parameter value (API key) # # @example parameter name is "api_key", API key is "xxx" (e.g. "api_key=xxx" in query string) # config.api_key['api_key'] = 'xxx' attr_accessor :api_key # Defines API key prefixes used with API Key authentications. # # @return [Hash] key: parameter name, value: API key prefix # # @example parameter name is "Authorization", API key prefix is "Token" (e.g. "Authorization: Token xxx" in headers) # config.api_key_prefix['api_key'] = 'Token' attr_accessor :api_key_prefix # Defines the username used with HTTP basic authentication. # # @return [String] attr_accessor :username # Defines the password used with HTTP basic authentication. # # @return [String] attr_accessor :password # Defines the access token (Bearer) used with OAuth2. attr_accessor :access_token # 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. # # @return [true, false] attr_accessor :debugging # Defines the logger used for debugging. # Default to `Rails.logger` (when in Rails) or logging to STDOUT. # # @return [#debug] attr_accessor :logger # Defines the temporary folder to store downloaded files # (for API endpoints that have file response). # Default to use `Tempfile`. # # @return [String] attr_accessor :temp_folder_path # The time limit for HTTP request in seconds. # Default to 0 (never times out). attr_accessor :timeout # Set this to false to skip client side validation in the operation. # Default to true. # @return [true, false] attr_accessor :client_side_validation ### TLS/SSL setting # Set this to false to skip verifying SSL certificate when calling API from https server. # Default to true. # # @note Do NOT set it to false in production code, otherwise you would face multiple types of cryptographic attacks. # # @return [true, false] attr_accessor :verify_ssl ### TLS/SSL setting # Set this to false to skip verifying SSL host name # Default to true. # # @note Do NOT set it to false in production code, otherwise you would face multiple types of cryptographic attacks. # # @return [true, false] attr_accessor :verify_ssl_host ### TLS/SSL setting # Set this to customize the certificate file to verify the peer. # # @return [String] the path to the certificate file # # @see The `cainfo` option of Typhoeus, `--cert` option of libcurl. Related source code: # https://github.com/typhoeus/typhoeus/blob/master/lib/typhoeus/easy_factory.rb#L145 attr_accessor :ssl_ca_cert ### TLS/SSL setting # Client certificate file (for client certificate) attr_accessor :cert_file ### TLS/SSL setting # Client private key file (for client certificate) attr_accessor :key_file # Set this to customize parameters encoding of array parameter with multi collectionFormat. # Default to nil. # # @see The params_encoding option of Ethon. Related source code: # https://github.com/typhoeus/ethon/blob/master/lib/ethon/easy/queryable.rb#L96 attr_accessor :params_encoding attr_accessor :inject_format attr_accessor :force_ending_format def initialize @scheme = 'https' @host = 'api.sandbox.velopayments.com' @base_path = '' @api_key = {} @api_key_prefix = {} @timeout = 0 @client_side_validation = true @verify_ssl = true @verify_ssl_host = true @params_encoding = nil @cert_file = nil @key_file = nil @debugging = false @inject_format = false @force_ending_format = false @logger = defined?(Rails) ? Rails.logger : Logger.new(STDOUT) yield(self) if block_given? end # The default Configuration object. def self.default @@default ||= Configuration.new end def configure yield(self) if block_given? end def scheme=(scheme) # remove :// from scheme @scheme = scheme.sub(/:\/\//, '') end def host=(host) # remove http(s):// and anything after a slash @host = host.sub(/https?:\/\//, '').split('/').first end def base_path=(base_path) # Add leading and trailing slashes to base_path @base_path = "/#{base_path}".gsub(/\/+/, '/') @base_path = '' if @base_path == '/' end def base_url "#{scheme}://#{[host, base_path].join('/').gsub(/\/+/, '/')}".sub(/\/+\z/, '') end # Gets API key (with prefix if set). # @param [String] param_name the parameter name of API key auth def api_key_with_prefix(param_name) if @api_key_prefix[param_name] "#{@api_key_prefix[param_name]} #{@api_key[param_name]}" else @api_key[param_name] end end # Gets Basic Auth token string def basic_auth_token 'Basic ' + ["#{username}:#{password}"].pack('m').delete("\r\n") end # Returns Auth Settings hash for api client. def auth_settings { 'OAuth2' => { type: 'oauth2', in: 'header', key: 'Authorization', value: "Bearer #{access_token}" }, 'basicAuth' => { type: 'basic', in: 'header', key: 'Authorization', value: basic_auth_token }, 'oAuthVeloBackOffice' => { type: 'oauth2', in: 'header', key: 'Authorization', value: "Bearer #{access_token}" }, } end # Returns an array of Server setting def server_settings [ { url: "https://api.sandbox.velopayments.com/", description: "Velo Payments Sandbox for testing", }, { url: "https://api.payouts.velopayments.com", description: "Velo Payments Production URL", } ] end # Returns URL based on server settings # # @param index array index of the server settings # @param variables hash of variable and the corresponding value def server_url(index, variables = {}) servers = server_settings # 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] # go through variable and assign a value server[:variables].each do |name, variable| if variables.key?(name) if (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 end end