Ruby Wrapper for OCA e-Pak API

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Getting Started

For command line usage:

$ gem install oca-epak

If you intend to use it within an application, add gem "oca-epak" to your Gemfile.


There are two OCA clients available, one for each endpoint. Oca::Epak::Client provides most of OCA's Epak offerings. The other one, which uses an older endpoint, Oca::Oep::Client, provides only a few methods which aren't yet available under the new endpoint.

You will most likely want to use Oca::Epak::Client most of the time. To initialize a client:

epak_client = Oca::Epak::Client.new("[email protected]", "your-password")

To check whether your credentials are valid or not, run #check_credentials

=> true

To see your available operation codes, you can use #get_operation_codes

operation_codes = epak_client.get_operation_codes
=> [{ :id_operativa=>"77790",
      :descripcion=>"77790 - ENVIOS DE PUERTA A PUERTA",
      :"@msdata:row_order"=>"0" }]

NOTE: Keep in mind that you cannot register/create an operation code via OCA's API, you have to get in touch with someone from OCA and they take care of the registration.

After you have your operation code active for a given delivery type, you can begin calculating shipping rates and delivery estimates:

opts = { total_weight: "50", total_volume: "0.027", origin_zip_code: "1646",
         destination_zip_code: "2000", declared_value: "100",
         package_quantity: "1", cuit: "30-99999999-7", operation_code: "77790" }

=> {:tarifador=>"15",
    :xml=>"<row Tarifador=\"15\" Precio=\"328.9000\"/>",

To create a pickup order, in order to let OCA know that they should pick up an order for delivery, you can use #create_pickup_order.

You will first need to create an Oca::Epak::PickupData object. The pickup hash contains information about the sender of the package, where OCA should pick it up. The shipments hash contains information about who will receive the package, where it should be sent:

opts = {
  account_number: "your-account-number-aka-sap",
  pickup: { "calle" => "street-name",
            "numero" => "street-number",
            "piso" => "",
            "departamento" => "",
            "cp" => "zipcode",
            "localidad" => "city",
            "provincia" => "province",
            "solicitante" => "your-name",
            "email" => "your-email",
            "observaciones"=> "" },
  shipments: [
      "id_operativa" => "operation-code",
      "numero_remito" => "your-internal-order-number",
      "destinatario" => {
        "apellido" => "last-name",
        "nombre" => "first-name",
        "calle" => "street-name",
        "numero" => "street-number",
        "piso" => "",
        "departamento" => "",
        "cp" => "zipcode",
        "localidad" => "city",
        "provincia" => "provice",
        "telefono" => "phone",
        "email" => "email"
      "paquetes"=> [
          "alto" => "package-height-in-m",
          "ancho" => "package-width-in-m",
          "largo" => "package-depth-in-m",
          "peso" => "package-weight-in-kg",
          "valor_declarado" => "package-monetary-value",
          "cantidad" => "quantity-of-packages"

pickup_data = Oca::Epak::PickupData.new(opts)

After you create the PickupData object, you can submit the shipment:

response = epak_client.create_pickup_order(pickup_data)
=> {:resultado=>
       :fecha_ingreso=>#<DateTime: 2015-11-17T11:43:50-03:00 ((2457344j,53030s,607000000n),-10800s,2299161j)>,
       :mail_usuario=>"[email protected]",

#create_pickup_order has a few extra options you can check by browsing the method's documentation.


Logging of API calls via the Savon client is disabled by default. To enable it, you need to set the logger options:

Oca::Logger.options = { log: true }

The default options are:

  log: false,
  pretty_print_xml: false,
  log_level: :info

You can set a different logger too:

Oca::Logger.options = {
  log: true,
  pretty_print_xml: true,
  log_level: :debug,
  logger: Rails.logger

Contributing & Development

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Write your feature (and tests)
  4. Run tests (bundle exec rake)
  5. Commit your changes (git commit -am 'Added some feature')
  6. Push to the branch (git push origin my-new-feature)
  7. Create new Pull Request

Release the Gem

$ bundle exec rake release


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