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๐Ÿ’Ž Ruby client for the Fidor Bank REST-API

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FidorApi

Gem Version Build Status

Ruby client library to work with Fidor APIs.

๐Ÿ’ก This branch contains the 2.x.x version. For previous versions see v1 branch.

Installation

Add this line to your application's Gemfile:

gem 'fidor_api', '>= 2'

And then execute:

$ bundle

Or install it yourself as:

$ gem install fidor_api

Usage

0. Configure

client = FidorApi::Client.new do |config|
  # config.environment = FidorApi::Environment::FidorDE::Sandbox
  config.client_id     = 'your-client-id'
  config.client_secret = 'your-client-secret'

  # optional
  config.faraday = lambda do |faraday|
    faraday.use MyApp::CustomFaradayLogger, Rails.logger
  end
end

Environments

By default this gem ships with different supported environments:

FidorApi::Environment::FidorDE::Sandbox (default)
Connects against the Fidor Germany Sandbox API (*.sandbox.fidor.com).
Supports only oauth2 authorization code flow and the classic transfer APIs.

FidorApi::Environment::FidorDE::Production
Connects against the Fidor Germany Production API (*.fidor.de).
Supports only oauth2 authorization code flow and the classic transfer APIs.

FidorApi::Environment::Future
Connects against a fictional API version which represents a future version of the Fidor Standard API (*.example.com).
Supports more oauth2 based authorization flows and the generic transfer API.
It is used for testing purposes only.

In some cases you'll need to connect to a custom environment (e.g. when using mocked APIs or if you're working with internal test-servers).
For this you can simply implement your own environment definition (for example inside your application code):

module FidorApi
  module Environment
    class Custom < Base
      def api_host
        'http://api.custom.example.com'
      end

      def auth_host
        api_host
      end

      def auth_redirect_host
        'http://auth.custom.example.com'
      end

      def auth_methods
        %i[authorization_code resource_owner_password_credentials client_credentials].freeze
      end

      def transfers_api
        :generic
      end
    end
  end
end

Rails.application.config.x.tap do |config|
  # [...]
  config.fidor_api.environment = FidorApi::Environment::Custom.new
  # [...]
end

Methods required to be implemented:

Method Name Expected to Return Usage
api_host String Used as endpoint for the normal API calls
auth_host String Used for the oAuth2 calls
auth_redirect_host String Used for the web-based redirect flow URLs
auth_methods Array of Symbol Defines the supported oAuth2 authentication methods
transfers_api Symbol Defines which transfer API is supported. :generic or :classic

1. oAuth (Rails)

Redirect the user to the authorize URL:

redirect_to client.authorize_start(
  redirect_uri: 'https://localhost:3000/callback'
)

Use code passed to the callback URL and fetch the access token:

session[:api_token] = client.authorize_complete(
  redirect_uri: 'https://localhost:3000/callback',
  code:         params[:code]
)

2. Fetching data

client.token = FidorApi::Token.new(session[:api_token])

user = client.user
# => FidorApi::Model::User

user = client.transactions
# => FidorApi::Collection

transaction = transactions.first
# => FidorApi::Model::Transaction

3. Creating transfers

client.token = FidorApi::Token.new(session[:api_token])

transfer = client.create_internal_transfer(
  account_id:   875,
  receiver:     '[email protected]',
  external_uid: '4279762F5',
  subject:      'Money for you',
  amount:       1000
)
# => FidorApi::Model::Transfer::Classic::Internal

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/fidor/fidor_api.

License

The gem is available as open source under the terms of the MIT License.

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๐Ÿ’Ž Ruby client for the Fidor Bank REST-API

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