MuffinMan

MuffinMan is a ruby interface to the Amazon Selling Partner API. For more information on registering to use the Selling Partner API, see Amazon's documentation

As of now, this gem only supports portions of the following APIs with more to come:

• create_product_review_and_seller_feedback_solicitation
• catalog_items
• reports

Installation

Add this line to your application's Gemfile:

gem 'muffin_man'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install muffin_man

Usage

To make a call to the Amazon Selling Partner API, define your credentials and make a call as shown:

require 'muffin_man'
credentials = {
  refresh_token: LWA_REFRESH_TOKEN,
  client_id: CLIENT_ID,
  client_secret: CLIENT_SECRET,
  aws_access_key_id: AWS_ACCESS_KEY_ID,
  aws_secret_access_key: AWS_SECRET_ACCESS_KEY,
  region: REGION, # This can be one of ['na', 'eu', 'fe'] and defaults to 'na'
  sts_iam_role_arn: STS_IAM_ROLE_ARN, # Optional
  access_token_cache_key: SELLING_PARTNER_ID, # Optional if you want access token caching
}
client = MuffinMan::Solicitations::V1.new(credentials)
response = client.create_product_review_and_seller_feedback_solicitation(amazon_order_id, marketplace_ids)
JSON.parse(response.body)

You can optionally use Amazon's sandbox environment by specifying client = MuffinMan::Solicitations.new(credentials, sandbox = true)

Access Token Caching

You can save and retrieve the LWA refresh token by defining a lambda in your initializers.

For example, if you are using Redis as your cache you could define:

@@redis = Redis.new
MuffinMan.configure do |config|
  config.save_access_token = -> (access_token_cache_key, token) do
    @@redis.set("SP-TOKEN-#{access_token_cache_key}", token['access_token'], ex: token['expires_in'])
  end

  config.get_access_token = -> (access_token_cache_key) { @@redis.get("SP-TOKEN-#{access_token_cache_key}") }
end

Retrieiving the refresh token

To retrieve the refresh token from an LWA Website authorization workflow, you can use the LWA helper:

# Get your auth code first, either through the Website oauth flow or Authorization API
credentials = {
  client_id: CLIENT_ID,
  client_secret: CLIENT_SECRET,
  aws_access_key_id: AWS_ACCESS_KEY_ID,
  aws_secret_access_key: AWS_SECRET_ACCESS_KEY,
  sts_iam_role_arn: STS_IAM_ROLE_ARN, # Optional
  scope: 'sellingpartnerapi::migration' # Grantless scope for MWS migration
}
client = MuffinMan::Authorization::V1.new(credentials)
resp = JSON.parse(client.get_authorization_code(seller_id, developer_id, mws_auth_token).body)
auth_code = resp['payload']['authorizationCode']
# Then query retrieve the refresh token to store
refresh_token = MuffinMan::Lwa::AuthHelper.get_refresh_token(CLIENT_ID, CLIENT_SECRET, auth_code)

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/patterninc/muffin_man. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

License

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

Code of Conduct

Everyone interacting in the MuffinMan project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.