Pago Fácil

Accept Pago Fácil payments in your online store.

Pago Fácil is a widely used payment method in Argentina, allowing customers to make payments by generating a payment reference number or a ticket and paying in cash at any Pago Fácil location nationwide.

Use the emerchantpay Pago Fácil API to accept Pago Fácil as a payment method across the supported emerchantpay payment integrations.

Payment method	Countries/regions
Cash and ATM payments	Argentina

Prerequisites

Integrating emerchantpay requires an account. To apply, submit the contact form. Your emerchantpay Account Manager will provide your credentials and assist you with the payment solutions.

To integrate with Pago Fácil, connect to the emerchantpay payment gateway using the emerchantpay Pago Fácil API. You should have a working knowledge of web programming languages, HTTP methods in XML and JSON formats, and UTF8 encoding. Use the emerchantpay Payment Gateway SDK libraries with code samples to integrate with the payment gateway in a range of languages. For a solution that requires less development overhead, accept Pago Fácil payments through the emerchantpay Web Payment Form (WPF). Contact your Account Manager and tell them you want to accept Pago Fácil through the WPF, and refer to the emerchantpay Payment Gateway API WPF documentation.

1. Create a Pago Fácil payment request

To submit a payment using Pago Fácil, create a payment request to the emerchantpay payment gateway. Specify pago_facil as the transaction_type.

See the emerchantpay Pago Fácil API documentation for the complete list of Pago Fácil request parameters and code samples.

Example of passing a Pago Fácil transaction request:

<payment_transaction>
    <transaction_type>pago_facil</transaction_type>
    <transaction_id>119643250547501c79d8295</transaction_id>
    <usage>40208 concert tickets</usage>
    <remote_ip>245.253.2.12</remote_ip>
    <return_success_url>http://www.example.com/success</return_success_url>
    <return_failure_url>http://www.example.com/failure</return_failure_url>
    <amount>100000</amount>
    <currency>ARS</currency>
    <consumer_reference>jsmith</consumer_reference>
    <national_id>8812128812</national_id>
    <birth_date>30-12-1992</birth_date>
    <customer_email>jsmith@example.com</customer_email>
    <billing_address>
      <first_name>John</first_name>
      <last_name>Smith</last_name>
      <address1>45 North Str</address1>
      <zip_code>W1T 2QS</zip_code>
      <city>London</city>
      <country>UK</country>
    </billing_address>
    <risk_params>
      <user_id>123456</user_id>
    </risk_params>
</payment_transaction>

Use your staging environment credentials to initially set up and test your integration. Once you are ready to move to production and accept live payments, create a payment request using your production credentials and production URLs.

2. Receive a response

You will receive a Success or Error response to your payment request. Example of a Success response:

<payment_response>
    <transaction_type>pago_facil</transaction_type>
    <status>pending_async</status>
    <transaction_id>119643250547501c79d8295</transaction_id>
    <unique_id>44177a21403427eb96664a6d7e5d5d48</unique_id>
    <redirect_url>https://staging.gate.emerchantpay.net/redirect/to_acquirer/649e1ff35c61</redirect_url>
    <technical_message>Transaction successful!</technical_message>
    <message>Transaction successful!</message>
    <timestamp>2023-07-12T12:54:02Z</timestamp>
    <descriptor>Acme Co.</descriptor>
    <amount>100000</amount>
    <currency>ARS</currency>
    <sent_to_acquirer>true</sent_to_acquirer>
</payment_response>

Use the returned redirect_url to redirect your customer to authorise the payment with Pago Fácil. See the emerchantpay Pago Fácil API documentation for the complete list of Pago Fácil response parameters and code samples.

Asynchronous notification

Because the Pago Fácil payment transaction is asynchronous, the result of your customer’s payment is sent as a separate HTTP POST notification from the gateway to the notification_url that you supplied with the transaction request.

Example of a notification for a Pago Fácil transaction:

“transaction_id”: “f44f2856b5d933c04f42d1e922e30cbf”,
“terminal_token”: “871bbbd2f9ce1d58dead9848ef5a24ab59a8ee94”,
“unique_id”: “832eb553eba838f79113167cbc1002a1”,
“transaction_type”: “pago_facil”,
“status”: “approved”,
“signature”: “b74ed54d95589fce6f9d7a229b225fd4a925e9bc”,
“amount”: “1000000”

The status field provides you with information on the outcome of the transaction. See Transaction States for more information about transaction statuses.

For the full list of notification parameters, see Notifications.

Use the signature field to verify that the notification has been sent by the emerchantpay payment gateway. Each session signature is generated by combining the unique_id of the transaction and your API password, and generating a SHA-1 hash function of the combined string.

signature = SHA-1 hash value of <unique_id><API password>

Notification signature examples:

unique_id	API password	signature
26aa150ee68b1b2d6758a0e6c44fce4c	50fd87e65eb415f42fb5af4c9cf497662e00b785	c5219b3d385e74496b2b48a549
3f760162ef57a829011e5e2379b3fa17	50fd87e65eb415f42fb5af4c9cf497662e00b785	14519d0db2f7f8f407efccc9b099

After you have verified the notification state and validity, render an XML page containing the transaction’s unique id to acknowledge that you have received the notification.

Example of a notification reply you use to confirm a notification:

<?xml version=”1.0″ encoding=”UTF-8″?>
<notification_echo>
  <unique_id>3f760162ef57a829011e5e2379b3fa17</unique_id>
</notification_echo>

3. Test your integration

Before you can accept live payments, you must test your integration in the staging environment.

Add an item to your cart in your online store.
Proceed to the checkout page and check out using Pago Fácil.
Follow the redirect link in the response.
In the payment simulator, follow the instructions to simulate a transaction.
Complete the order and verify that you are redirected to the order confirmation page.
Log in to the Gateway Console.
In the navigation menu, go to Payment transactions.
Verify that the transaction appears at the top of the list and is successful.

4. Accept live payments

After you have successfully tested your Pago Fácil integration, you are ready to move to the production environment and accept live payments. Contact your emerchantpay Account Manager to get your login credentials for the production environment.

To move to the production environment, create payment requests using your production API credentials and production URLs.

You are now ready to accept live payments using Pago Fácil.

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