Class: FriendlyShipping::Services::USPSShip

Inherits:
Object
  • Object
show all
Includes:
Dry::Monads::Result::Mixin
Defined in:
lib/friendly_shipping/services/usps_ship.rb,
lib/friendly_shipping/services/usps_ship/api_error.rb,
lib/friendly_shipping/services/usps_ship/access_token.rb,
lib/friendly_shipping/services/usps_ship/timing_options.rb,
lib/friendly_shipping/services/usps_ship/shipping_methods.rb,
lib/friendly_shipping/services/usps_ship/machinable_package.rb,
lib/friendly_shipping/services/usps_ship/rate_estimate_options.rb,
lib/friendly_shipping/services/usps_ship/parse_timings_response.rb,
lib/friendly_shipping/services/usps_ship/parse_rate_estimates_response.rb,
lib/friendly_shipping/services/usps_ship/rate_estimate_package_options.rb,
lib/friendly_shipping/services/usps_ship/serialize_rate_estimates_request.rb

Defined Under Namespace

Classes: AccessToken, ApiError, MachinablePackage, ParseRateEstimatesResponse, ParseTimingsResponse, RateEstimateOptions, RateEstimatePackageOptions, SerializeRateEstimatesRequest

Constant Summary collapse

CARRIER =

The USPS carrier

FriendlyShipping::Carrier.new(
  id: 'usps',
  name: 'United States Postal Service',
  code: 'usps',
  shipping_methods: SHIPPING_METHODS
)
BASE_URL =

The base URL for USPS Ship requests

'https://api.usps.com'
RESOURCES =

The USPS Ship API endpoints

{
  token: 'oauth2/v3/token',
  rates: 'prices/v3/base-rates/search',
  timings: 'service-standards/v3/estimates'
}.freeze
TimingOptions = 
RateEstimateOptions
SHIPPING_METHODS = 
[
  ["BOUND_PRINTED_MATTER", "Bound Printed Matter"],
  ["FIRST-CLASS_PACKAGE_RETURN_SERVICE", "First-Class Package Return Service"],
  ["FIRST-CLASS_PACKAGE_SERVICE", "First-Class Package Service"],
  ["GROUND_RETURN_SERVICE", "Ground Return Service"],
  ["LIBRARY_MAIL", "Library Mail"],
  ["MEDIA_MAIL", "Media Mail"],
  ["PARCEL_SELECT", "Parcel Select"],
  ["PARCEL_SELECT_LIGHTWEIGHT", "Parcel Select Lightweight"],
  ["PRIORITY_MAIL", "Priority Mail"],
  ["PRIORITY_MAIL_EXPRESS", "Priority Mail Express"],
  ["PRIORITY_MAIL_EXPRESS_RETURN_SERVICE", "Priority Mail Express Return Service"],
  ["PRIORITY_MAIL_RETURN_SERVICE", "Priority Mail Return Service"],
  ["USPS_CONNECT_LOCAL", "USPS Connect Local"],
  ["USPS_CONNECT_MAIL", "USPS Connect Mail"],
  ["USPS_CONNECT_NEXT_DAY", "USPS Connect Next Day"],
  ["USPS_CONNECT_REGIONAL", "USPS Connect Regional"],
  ["USPS_CONNECT_SAME_DAY", "USPS Connect Same Day"],
  ["USPS_GROUND_ADVANTAGE", "USPS Ground Advantage"],
  ["USPS_GROUND_ADVANTAGE_RETURN_SERVICE", "USPS Ground Advantage Return Service"],
  ["USPS_RETAIL_GROUND", "USPS Retail Ground"]
].map do |code, name|
  FriendlyShipping::ShippingMethod.new(
    origin_countries: [Carmen::Country.coded("US")],
    name: name,
    service_code: code,
    domestic: true,
    international: false
  )
end.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(access_token:, test: true, client: nil) ⇒ USPSShip

Returns a new instance of USPSShip.

Parameters:

  • access_token (AccessToken) —

    the access token

  • test (Boolean) (defaults to: true) —

    whether to use the test API version

  • client (HttpClient) (defaults to: nil) —

    optional HTTP client to use for requests



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# File 'lib/friendly_shipping/services/usps_ship.rb', line 41

def initialize(access_token:, test: true, client: nil)
  @access_token = access_token
  @test = test
  error_handler = ApiErrorHandler.new(api_error_class: USPSShip::ApiError)
  @client = client || HttpClient.new(error_handler: error_handler)
end

Instance Attribute Details

#access_token ⇒ AccessToken (readonly)

Returns the access token.

Returns:



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# File 'lib/friendly_shipping/services/usps_ship.rb', line 12

def access_token
  @access_token
end

#client ⇒ HttpClient (readonly)

Returns the HTTP client.

Returns:



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# File 'lib/friendly_shipping/services/usps_ship.rb', line 18

def client
  @client
end

#test ⇒ Boolean (readonly)

Returns whether to use the test API version.

Returns:

  • (Boolean) —

    whether to use the test API version



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# File 'lib/friendly_shipping/services/usps_ship.rb', line 15

def test
  @test
end

Instance Method Details

#carriers ⇒ Array<Carrier>

Returns:



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# File 'lib/friendly_shipping/services/usps_ship.rb', line 49

def carriers
  Success([CARRIER])
end

#create_access_token(client_id:, client_secret:, grant_type: "client_credentials", debug: false) ⇒ ApiResult<AccessToken>

Creates an access token that can be used for future API requests.

Parameters:

  • client_id (String) —

    the Client ID of your application from the OAuth Client dialog

  • client_secret (String) —

    the secret you created in the OAuth Client Secrets section of the OAuth Client dialog

  • grant_type (String) (defaults to: "client_credentials") —

    defaults to "client_credentials" to indicate you wish to obtain a token representing your confidential client application

  • debug (Boolean) (defaults to: false) —

    whether to append debug information to the API result

Returns:

See Also:



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# File 'lib/friendly_shipping/services/usps_ship.rb', line 61

def create_access_token(
  client_id:,
  client_secret:,
  grant_type: "client_credentials",
  debug: false
)
  request = FriendlyShipping::Request.new(
    url: "#{BASE_URL}/#{RESOURCES[:token]}",
    http_method: "POST",
    body: "client_id=#{client_id}&" \
          "client_secret=#{client_secret}&" \
          "grant_type=#{grant_type}",
    headers: {
      Content_Type: "application/x-www-form-urlencoded",
      Accept: "application/json"
    },
    debug: debug
  )
  client.post(request).fmap do |response|
    hash = JSON.parse(response.body)
    FriendlyShipping::ApiResult.new(
      AccessToken.new(
        token_type: hash['token_type'],
        expires_in: hash['expires_in'],
        raw_token: hash['access_token']
      ),
      original_request: request,
      original_response: response
    )
  end
end

#rate_estimates(shipment, options:, debug: false) ⇒ Result<ApiResult<Array<Rate>>>

Get rate estimates. NOTE: Since USPS Ship does not support returning multiple rates at the same time, we have to make multiple API calls for shipments with more than one package and sum the results.

Parameters:

  • shipment (Physical::Shipment) —

    the shipment for which we want to get rates

  • options (RateEstimateOptions) —

    options for obtaining rates for this shipment

  • debug (Boolean) (defaults to: false) —

    whether to append debug information to the API result

Returns:

See Also:



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# File 'lib/friendly_shipping/services/usps_ship.rb', line 103

def rate_estimates(shipment, options:, debug: false)
  api_results = shipment.packages.map do |package|
    yield begin
      rate_request = SerializeRateEstimatesRequest.call(shipment: shipment, package: package, options: options)
      request = build_request(api: :rates, payload: rate_request, debug: debug)

      client.post(request).bind do |response|
        ParseRateEstimatesResponse.call(response: response, request: request)
      end
    end
  end

  rates = api_results.flat_map(&:data)
  amounts = rates.each_with_object({}) do |rate, result|
    rate.amounts.each do |name, amount|
      result[name] ||= 0
      result[name] += amount
    end
  end

  Success(
    ApiResult.new(
      [
        FriendlyShipping::Rate.new(
          amounts: amounts,
          shipping_method: rates.first.shipping_method,
          data: rates.first.data
        )
      ],
      original_request: api_results.first.original_request,
      original_response: api_results.first.original_response
    )
  )
end

#timings(shipment, options:, debug: false) ⇒ Result<ApiResult<Array<Timing>>>

Get timing estimates.

Parameters:

  • shipment (Physical::Shipment) —

    the shipment for which we want to get timings

  • options (TimingOptions) —

    options for the timing estimate call

Returns:

See Also:



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# File 'lib/friendly_shipping/services/usps_ship.rb', line 144

def timings(shipment, options:, debug: false)
  request = FriendlyShipping::Request.new(
    url: "#{BASE_URL}/#{RESOURCES[:timings]}?" \
         "originZIPCode=#{shipment.origin.zip}&" \
         "destinationZIPCode=#{shipment.destination.zip}&" \
         "mailClass=#{options.shipping_method.service_code}&" \
         "acceptanceDate=#{options.mailing_date.strftime('%Y-%m-%d')}",
    http_method: "GET",
    debug: debug,
    headers: {
      Accept: "application/json",
      Authorization: "Bearer #{access_token.raw_token}"
    }
  )

  client.get(request).bind do |response|
    ParseTimingsResponse.call(response: response, request: request)
  end
end