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README.md

DwollaV2

Build Status

Dwolla V2 Ruby client.

API Documentation

Installation

Add this line to your application's Gemfile:

gem 'dwolla_v2', '3.0.0'

And then execute:

$ bundle

Or install it yourself as:

$ gem install dwolla_v2

DwollaV2::Client

Basic usage

Create a client using your application's consumer key and secret found on the applications page (Sandbox, Production).

# config/initializers/dwolla.rb
$dwolla = DwollaV2::Client.new(
  key: ENV["DWOLLA_APP_KEY"],
  secret: ENV["DWOLLA_APP_SECRET"],
  environment: :sandbox # defaults to :production
)

Integrations Authorization

Check out our Integrations Authorization Guide.

Configure Faraday (optional)

DwollaV2 uses Faraday to make HTTP requests. You can configure your own Faraday middleware and adapter when configuring your client. Remember to always include an adapter last, even if you want to use the default adapter.

# config/initializers/dwolla.rb
$dwolla = DwollaV2::Client.new(
  key: ENV["DWOLLA_APP_KEY"],
  secret: ENV["DWOLLA_APP_SECRET"]
) do |config|

  config.faraday do |faraday|
    faraday.response :logger
    faraday.adapter Faraday.default_adapter
  end
end

Requests

DwollaV2::Clients can make requests using the #get, #post, and #delete methods.

# GET api.dwolla.com/resource?foo=bar
$dwolla.get "resource", foo: "bar"

# POST api.dwolla.com/resource {"foo":"bar"}
$dwolla.post "resource", foo: "bar"

# POST api.dwolla.com/resource multipart/form-data foo=...
$dwolla.post "resource", foo: Faraday::UploadIO.new("/path/to/bar.png", "image/png")

# DELETE api.dwolla.com/resource
$dwolla.delete "resource"

Setting headers

To set additional headers on a request you can pass a Hash of headers as the 3rd argument.

For example:

$dwolla.post "customers", { firstName: "John", lastName: "Doe", email: "jd@doe.com" },
                          { 'Idempotency-Key': 'a52fcf63-0730-41c3-96e8-7147b5d1fb01' }

Responses

Requests return a DwollaV2::Response.

res = $dwolla.get "/"
# => #<DwollaV2::Response response_status=200 response_headers={"server"=>"cloudflare-nginx", "date"=>"Mon, 28 Mar 2016 15:30:23 GMT", "content-type"=>"application/vnd.dwolla.v1.hal+json; charset=UTF-8", "content-length"=>"150", "connection"=>"close", "set-cookie"=>"__cfduid=d9dcd0f586c166d36cbd45b992bdaa11b1459179023; expires=Tue, 28-Mar-17 15:30:23 GMT; path=/; domain=.dwolla.com; HttpOnly", "x-request-id"=>"69a4e612-5dae-4c52-a6a0-2f921e34a88a", "cf-ray"=>"28ac1f81875941e3-MSP"} {"_links"=>{"events"=>{"href"=>"https://api-sandbox.dwolla.com/events"}, "webhook-subscriptions"=>{"href"=>"https://api-sandbox.dwolla.com/webhook-subscriptions"}}}>

res.response_status
# => 200

res.response_headers
# => {"server"=>"cloudflare-nginx", "date"=>"Mon, 28 Mar 2016 15:30:23 GMT", "content-type"=>"application/vnd.dwolla.v1.hal+json; charset=UTF-8", "content-length"=>"150", "connection"=>"close", "set-cookie"=>"__cfduid=d9dcd0f586c166d36cbd45b992bdaa11b1459179023; expires=Tue, 28-Mar-17 15:30:23 GMT; path=/; domain=.dwolla.com; HttpOnly", "x-request-id"=>"69a4e612-5dae-4c52-a6a0-2f921e34a88a", "cf-ray"=>"28ac1f81875941e3-MSP"}

res._links.events.href
# => "https://api-sandbox.dwolla.com/events"

Errors

If the server returns an error, a DwollaV2::Error (or one of its subclasses) will be raised. DwollaV2::Errors are similar to DwollaV2::Responses.

begin
  $dwolla.get "/not-found"
rescue DwollaV2::NotFoundError => e
  e
  # => #<DwollaV2::NotFoundError response_status=404 response_headers={"server"=>"cloudflare-nginx", "date"=>"Mon, 28 Mar 2016 15:35:32 GMT", "content-type"=>"application/vnd.dwolla.v1.hal+json; profile=\"http://nocarrier.co.uk/profiles/vnd.error/\"; charset=UTF-8", "content-length"=>"69", "connection"=>"close", "set-cookie"=>"__cfduid=da1478bfdf3e56275cd8a6a741866ccce1459179332; expires=Tue, 28-Mar-17 15:35:32 GMT; path=/; domain=.dwolla.com; HttpOnly", "access-control-allow-origin"=>"*", "x-request-id"=>"667fca74-b53d-43db-bddd-50426a011881", "cf-ray"=>"28ac270abca64207-MSP"} {"code"=>"NotFound", "message"=>"The requested resource was not found."}>

  e.response_status
  # => 404

  e.response_headers
  # => {"server"=>"cloudflare-nginx", "date"=>"Mon, 28 Mar 2016 15:35:32 GMT", "content-type"=>"application/vnd.dwolla.v1.hal+json; profile=\"http://nocarrier.co.uk/profiles/vnd.error/\"; charset=UTF-8", "content-length"=>"69", "connection"=>"close", "set-cookie"=>"__cfduid=da1478bfdf3e56275cd8a6a741866ccce1459179332; expires=Tue, 28-Mar-17 15:35:32 GMT; path=/; domain=.dwolla.com; HttpOnly", "access-control-allow-origin"=>"*", "x-request-id"=>"667fca74-b53d-43db-bddd-50426a011881", "cf-ray"=>"28ac270abca64207-MSP"}

  e.code
  # => "NotFound"
rescue DwollaV2::Error => e
  # ...
end

DwollaV2::Error subclasses:

See https://docsv2.dwolla.com/#errors for more info.

  • DwollaV2::AccessDeniedError
  • DwollaV2::InvalidCredentialsError
  • DwollaV2::NotFoundError
  • DwollaV2::BadRequestError
  • DwollaV2::InvalidGrantError
  • DwollaV2::RequestTimeoutError
  • DwollaV2::ExpiredAccessTokenError
  • DwollaV2::InvalidRequestError
  • DwollaV2::ServerError
  • DwollaV2::ForbiddenError
  • DwollaV2::InvalidResourceStateError
  • DwollaV2::TemporarilyUnavailableError
  • DwollaV2::InvalidAccessTokenError
  • DwollaV2::InvalidScopeError
  • DwollaV2::UnauthorizedClientError
  • DwollaV2::InvalidAccountStatusError
  • DwollaV2::InvalidScopesError
  • DwollaV2::UnsupportedGrantTypeError
  • DwollaV2::InvalidApplicationStatusError
  • DwollaV2::InvalidVersionError
  • DwollaV2::UnsupportedResponseTypeError
  • DwollaV2::InvalidClientError
  • DwollaV2::MethodNotAllowedError
  • DwollaV2::ValidationError
  • DwollaV2::TooManyRequestsError
  • DwollaV2::ConflictError

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. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/Dwolla/dwolla-v2-ruby.

License

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

Changelog

  • 3.0.0 - Add integrations auth functions
  • 3.0.0.beta1 - Add token management functionality to DwollaV2::Client
  • 2.2.1 - Update dependencies
  • 2.2.0 - Change token url from www.dwolla.com/oauth/v2/token to accounts.dwolla.com/token
  • 2.1.0 - Ensure Time.iso8601 is defined so timestamps get parsed. #38 (Thanks @javierjulio!)
  • 2.0.3 - Add DuplicateResourceError #34 (Thanks @javierjulio!)
  • 2.0.2 - Fix bug in #30 (Thanks again @sobrinho!)
  • 2.0.1 - Fix bugs in #27 + #28 (Thanks @sobrinho!)
  • 2.0.0
  • Rename DwollaV2::Response #status => #response_status, #headers => #response_headers to prevent conflicts with response body properties.
  • Remove support for Ruby versions < 2 (Bump public_suffix dependency version).
  • 1.2.3 - Implement #empty? on DwollaV2::Token to allow it to be passed to ActiveRecord constructor.
  • 1.2.2 - Strip domain from URLs provided to token.* methods.
  • 1.2.1 - Update sandbox URLs from uat => sandbox.
  • 1.2.0 - Refer to Client :id as :key in docs/public APIs for consistency.
  • 1.1.2 - Add support for verified_account and dwolla_landing auth flags.
  • 1.1.1 - Add TooManyRequestsError and ConflictError classes.
  • 1.1.0 - Support setting headers on a per-request basis.
  • 1.0.1 - Set user agent header.
  • 1.0.0 - Refactor Error class to be more like response, add ability to access keys using methods.
  • 0.4.0 - Refactor and document how DwollaV2::Response works
  • 0.3.1 - better DwollaV2::Error error messages
  • 0.3.0 - ISO8601 values in response body are converted to Time objects
  • 0.2.0 - Works with attr_encrypted
  • 0.1.1 - Handle 500 error with HTML response body when requesting a token

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Official Ruby Wrapper for Dwolla's API v2

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