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affirm-ruby

Ruby client library for integrating with Affirm financing (https://www.affirm.com/)

Requires Ruby 2.1 or greater.

Build Status

Install

Add to your gemfile:

gem 'affirm'

and bundle install.

Initialize

Initialize the client with your credentials (if you're using rails, this goes in config/initializers).

Affirm::API.public_key = "xxx"
Affirm::API.secret_key = "xxx"
Affirm::API.api_url    = "https://sandbox.affirm.com/api/v2/"

Charges

All API requests raise an Affirm::Error or subclass thereof on failure.

Creating/authorizing a charge

charge = Affirm::Charge.create("checkout_token")

Retrieving a charge

charge = Affirm::Charge.retrieve("ABCD-ABCD")

charge.id
charge.amount
charge.created
charge.currency
charge.auth_hold
charge.payable
charge.void?
charge.order_id
charge.events    # array of Affirm::ChargeEvent
charge.details   # hash of order details

Raises an Affirm::ResourceNotFoundError if the charge doesn't exist.

See https://docs.affirm.com/v2/api/charges/#charge-object for more info on the charge object

Capturing a charge

Optionally takes an order_id, shipping_carrier, and shipping_confirmation.

charge.capture
charge.capture(order_id: "1234", shipping_carrier: "USPS", shipping_confirmation: "ABCD1234")

Returns an Affirm::ChargeEvent object of type capture.

Voiding a charge

charge.void

Returns an Affirm::ChargeEvent object of type void.

Refunding a charge

Optionally takes an amount to refund (in cents).

charge.refund
charge.refund(amount: 1000)

Returns an Affirm::ChargeEvent object of type refund.

Updating tracking fields

Optionally takes an order_id, shipping_carrier, and shipping_confirmation.

charge.update(order_id: "1234", shipping_carrier: "USPS", shipping_confirmation: "ABCD1234")

Returns an Affirm::ChargeEvent object of type update.

Exceptions

Errors due to failed requests with the charges api (ie http code 400) will raise an Affirm::ChargeError.

Special exceptions are raised for 5xx, 404 and 401 responses, yielding an Affirm::ServerError, Affirm::ResourceNotFoundError and Affirm::AuthenticationError, respectively. These are all subclassed from Affirm::Error.

All exceptions have the following methods on them:

begin
  Affirm::Charge.create("checkout_token")
rescue Affirm::Error => e
  Logger.info e.http_code # eg 422
  Logger.info e.code      # eg "auth-declined"
  Logger.info e.message   # eg "Invalid phone number format"
end

Running specs

After bundling, run bundle exec rspec to run the tests.

License

Copyright 2015 Reverb.com, LLC

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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