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Checkout Integration

Version: 1.0.0
Released: 2022/12/10

Introduction


This document describes the Checkout integration procedures between Checkout service and the website for e-commerce merchants.

General Information


Checkout service is a fast and easy way to create a secure payment page. It allows collecting and submitting payments and sending them for processing.

To use the Checkout service on the site you have to perform integration. Checkout integration provides a set of APIs that allow customizing payment processing for the business. These protocols implement acquiring payments (purchases) using specific API interaction with the merchant websites.

The API requires request data as json string data and responds also with json string data.

Checkout process


Checkout payment flow is shown below.

When a Customer wants to make a purchase on your site the following happens:

  1. Customer places an order and initiates payment on the site.
  2. Site confirms the order and sends the payment processing request to the Checkout system with information about the order, payment and hash.
  3. Checkout system validates the request and sends to the site the response with the redirect link.
  4. The site redirects the Customer on the Checkout page by redirect link.
  5. Customer selects the payment method, enters the payment data and confirms the payment. The payment method will be specifying automatically If only one method is available.
  6. The payment processes at Payment Gateway.
  7. Payment Gateway sends a callback to the site with the payment result.
  8. The payment result is shown to the Customer.

The payment could be declined in case of invalid data detection.

Checkout page description


Checkout page is shown to the Customer after a payment initiation. There are the fields to enter the payment data.

Definitions

{{CHECKOUT_HOST}} = https://checkout.tesspayments.com

Fields and Validation

The list of the fields on the Checkout page depends on the request parameters and the specified payment method.

Your customers will not see the fields if the acquirer does not need the information that is transmitted in them. For example, if an alternative payment method is specified, the card data is not displayed on the Checkout page.

As well, pay attention to the conditional fields such as e-mail or billing address. If the e-mail and billing address (data object) parameters are specified in the request, the Checkout page will not contain them.

Additional fields can also be displayed if a payment method is selected that requests additional data from the Customer.

The Checkout page has the fields validation. In case of the invalid data the error message will be shown and the field will be highlighted.

The list of the general fields and possible errors on the Checkout page is below:

FieldsTypeLimitationsError
Card numberIntegralLun algorithm, length 14-19 numbersInvalid card number
Expirу DateDate2-2 numbers (in the format mm-yy),
after today's date
The expiration date of card is expired
and not valid.
Security codeIntegralUp to 4 charactersInvalid security code
Name on cardStringUp to 22 characters
(min - 2 characters)
The name on card field
must have at least 2 characters
CountryList2-letters codeCountry is required.
Please enter a valid Country
State/RegionString
List - for USA,
Canada, Australia,
Japan, India
CityStringUp to 32 charactersCity is required.
Please enter a valid City
Address lineStringUp to 32 charactersAddress line is required.
Please enter a valid Address line
Zip codeStringUp to 32 charactersZip code is required.
Please enter a valid Zip code
Phone numberStringUp to 32 charactersPhone number is required.
Please enter a valid Phone number

Pre-routing

To make payment method choice easier for the Customer, pre-routing is provided on the Checkout.

The functionality allows you to set up matches in the admin panel via the Custom routing module, which will determine the list of payment methods suitable for the current payment.

This way, you can restrict your Customers from randomly choosing a payment method that is not available in their region, for example. This will help you to increase the number of successful payments and reduce the risk of declined transactions.

Note that if the Authentication request contains a list of the payment methods in the methods array, then the pre-routing configurations will be ignored.

Card data tokenization

For regular customers, we have made the payment page even more convenient and simple.

You can save the customer's card data so that they can reuse it for future payments.

To do this, you need to send the req_token = true parameter in the Authentication request. And then, in the callback, you will receive a card token.

Use the token when sending the next Authentication request and your client will see anonymized card details on the payment form, which will greatly simplify the payment process.

Web information

Checkout service gathers information about browser, which the Customer uses.

When the Customer is on the Checkout page, the service gets the data about the Customer's OS, browser, and browser language. That information is sent to the acquirer in some cases.

iFrame option

You can use iFrame option to show Checkout page on your domain. All you need is just to past in the code redirect url received in the response to the Authentication request.

Please follow the example:

<iframe src=redirect_url height="600" width="300"></iframe>

Note that screen size can be adjusted according to your requirements.

Important: cross-domain requests are prohibited by security policy of our service.

Page Customization

The administration service provides the ability to stylize the Checkout page in accordance with the preferences of the merchant. The action is available for the authorized users only. To customize the payment page you need:

  1. Click the “Configuration → Branding” item on the menu bar. The settings are displayed in the work area.
  2. Select a page template to make changes.
  3. Change the settings:
    1. login icon selection;
    2. color selection for the following items:
      1. heading;
      2. background;
      3. buttons;
  4. Click the “Submit” button to apply the settings. The selected settings will be displayed to the Customers on the Checkout page.

Authentication request parameters


The merchant submits an authorization request and as a result of successful response receives the redirect_url - link on the Checkout page.

/api/v1/session

The authentication performs when the payment is initiated. INFO: You need to create an authentication request to start checkout process for the Customers. As a result of the authentication request you will receive the following:

  • An authentication session is created with a unique identifier (Session ID). The session expires after one hour.
  • A link is generated to redirect to the Checkout page: one link corresponds to one payment. The link becomes invalid after a successful payment. The authentication request parameters are below.

If DMS-mode (two-stages payment) is available, after successful authentication it is necessary to capture. The capture would be performed automatically according to the settings or you can do it manually in the admin portal.

Request Parameters

ParameterTypeMandatory, LimitationsDescription
merchant_keyStringRequiredKey for Merchant identification
Example: xxxxx-xxxxx-xxxxx
operationStringRequiredDefines a payment transaction
Example: purchase
methodsArrayOptionalAn array of payment methods. Limits the available methods on the Checkout page (the list of the possible values in the Payment methods section). In the case of parameter absence, the pre-routing rules are applied. If pre-routing rules are not configured, all available payment methods are displayed.
Example: card, applepay, naps
success_urlStringRequired
Valid URL
max: 1024
URL to redirect the Customer in case of the successful payment.
Merchant can opt to enable parameters to be added to this url. For details, click here
Example: https://example.com/success
cancel_urlStringOptional
Valid URL
min: 0 max: 1024
URL to return Customer in case of a payment cancellation (“Close” button on the Checkout page).
Merchant can opt to enable parameters to be added to this url. For details, click here
Example: https://example.com/cancel
url_targetStringOptional
Possible values: _blank, _self, _parent, _top or custom iframe name.
Find the result of applying the values in the HTML standard description (Browsing context names)
Name of, or keyword for a browsing context where Customer should be returned according to HTML specification.
Example: _parent
req_tokenBooleanOptional
default - false
Special attribute pointing for further tokenization
If the card_token is specified, req_token will be ignored.
Example: false
card_tokenArray of StringsOptional
String 64 characters
Credit card token value
Example: f5d6a0ab6fcfb6487a39e2256e50fff3c95aaa97
recurring_initBooleanOptional
default - false
Initialization of the transaction with possible following recurring
Example: true
schedule_idStringOptional
It s available when recurring_init = true
Schedule ID for recurring payments
Example: 57fddecf-17b9-4d38-9320-a670f0c29ec0
hashStringRequiredSpecial signature to validate your request to Payment Platform Addition in Signature section.
Example: Must be SHA1 of MD5 encoded string (uppercased): order_number + order_amount + order_currency + order_description + password
orderObjectRequiredInformation about an order
numberStringRequired
Not blank
max: 255
[a-zA-Z0-9-]
Order ID
Example: order-1234
amountFloatRequired
Not blank
Greater then 0
[0-9]
max: 255
Product price. Format: XX.XX.
Pay attention that amount format depends on currency exponent.
If exponent = 0, then amount is integer (without decimals). It used for currencies: CLP, VND, ISK, UGX, KRW, JPY.
If exponent = 3, then format: xx.xxx (with 3 decimals). It used for currencies: BHD, JOD, KWD, OMR, TND.
Example: 0.19
currencyStringRequired
Not blank
3 characters
[A-Z]
ISO 4217
Currency
Example: USD
descriptionStringRequired
min: 2 max: 1024
[a-zA-Z0-9,]
Product name
Example: Very important gift 9
customerObjectRequiredCustomer's information
nameStringRequired
min: 2 max: 32
Latin basic
[a-zA-Z]
Customer's name
Example: John Doe
emailStringConditional
email format
Customer's email address Condition: If the parameter is NOT specified in the request, then it will be displayed on the Checkout page (if a payment method needs) - the "E-mail" field
Example: [email protected]
billing_addressObjectConditionalBilling address information.
Condition: If the object or some object's parameters are NOT specified in the request, then it will be displayed on the Checkout page (if a payment method needs)
countryStringConditional 2 characters
(alpha-2 code)
ISO 3166-1
Billing country
Example: US
stateStringOptional
min: 2 max: 32
[a-zA-Z]
It is 2-letters code for USA, Canada, Australia, Japan, India
Billing state address
Example: CA
cityStringConditional
min: 2 max: 32
[a-zA-Z]
Billing city
Example: Los Angeles
addressStringConditional
min: 2 max: 32
[a-zA-Z0-9]
Billing address
Example: Moor Building 35274
zipStringConditional
min: 2 max: 10
[a-zA-Z0-9]
Billing zip code
Example: 123456, MK77
phoneStringConditional
min: 0 max: 32
[0-9+()-]
Customer phone number
Example: 347771112233
parametersObjectExtra-parameters required for specific payment method
Example:
"parameters": { "payment_method": { "param1":"val1", "param2":"val2" } }

Parameters Availibility - Success/Cancel Url

The capability can be activated by reaching out to the support team. Subsequently, the received parameters in the success_url / cancel_url are as follows:

ParameterRequiredTypeLimitationsDescriptionValid Value
payment_idYStringUUIDPayment Public ID45f3a510-90da-4432-9c85-257441a4361f
trans_idYStringUUIDTransaction ID (operation available in transaction details)dc66cdd8-d702-11ea-9a2f-0242c0a87002
order_idYStringUp to 255 charactersMerchant Order IDorder-1234
hashYString Special signature, used to validate received data. For details, click here0ec6e598002e9e3c0d4bcd01dec1643dd07066d8
Example Request
Authentication (OK)
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/session' \
--data-raw '{
"merchant_key": "xxxxx-xxxxx-xxxxx",
"operation": "purchase",
"methods": [
"card"
],
"order": {
"number": "order-1234",
"amount": "0.19",
"currency": "USD",
"description": "Important gift"
},
"cancel_url": "https://example.com/cancel",
"success_url": "https://example.com/success",
"customer": {
"name": "John Doe",
"email": "[email protected]"
},
"billing_address": {
"country": "US",
"state": "CA",
"city": "Los Angeles",
"address": "Moor Building 35274",
"zip": "123456",
"phone": "347771112233"
},
"hash": "{{session_hash}}",
}
'
Authentication (with card token)
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/session' \
--data-raw '{
"merchant_key": "1c568e26-c997-11e9-8be4-0242ac12000f",
"operation": "purchase",
"methods": [
"card",
"applepay"
],
"order": {
"number": "{{order_number}}",
"amount": "{{order_amount}}",
"currency": "{{order_currency}}",
"description": "{{order_description}}"
},
"cancel_url": "https://example.com/cancel",
"success_url": "https://example.com/success",
"customer": {
"name": "John Doe",
"email": "[email protected]"
},
"billing_address": {
"country": "US",
"state": "California",
"city": "Los Angeles",
"address": "Moor Building 35274 State ST Fremont. U.S.A",
"zip": "94538",
"phone": "347771112233"
},
"card_token": [
"f5d6a0ab6fcfb6487a39e2256e50fff3c95aaa97075ee5e539bb662fceff4dc1"
],
"req_token": true,
"hash": "{{session_hash}}"
}
'
Authentication (with recurring schedule)
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/session' \
--data-raw '{
"merchant_key": "xxxxx-xxxxx-xxxxx",
"operation": "purchase",
"methods": [
"card"
],
"order": {
"number": "order-1234",
"amount": "0.19",
"currency": "USD",
"description": "Important gift"
},
"cancel_url": "https://example.com/cancel",
"success_url": "https://example.com/success",
"customer": {
"name": "John Doe",
"email": "[email protected]"
},
"billing_address": {
"country": "US",
"state": "CA",
"city": "Los Angeles",
"address": "Moor Building 35274",
"zip": "123456",
"phone": "347771112233"
},
"recurring_init": true,
"schedule_id": "57fddecf-17b9-4d38-9320-a670f0c29ec0",
"hash": "{{session_hash}}"
}
'
Example Response (OK)
{
"redirect_url": "{{CHECKOUT_HOST}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"
}

Authentication request possible errors


Parameter Values Validation

Checkout service validates the request parameters and sends the error responses in case of an invalid data detection.

Example Request - Validation (bad)
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/session' \
--data-raw '{
"merchant_key":"xxxxx-xxxxx-xxxxx",
"operation":"credit",
"methods":[ "" ],
"order":{
"number":"",
"amount": "1.2",
"currency":"Dollar",
"description":""
},
"cancel_url":"1.com",
"success_url":"",
"customer":{
"name":"John Doe",
"email":"[email protected]"
},
"recurring_init": "true",
"hash":"728d13b95cf2b6b3ee04b20dc2fc9889ffff1cf4"
}
'
Example Response - 400 Bad Request
{
"error_code": 0,
"error_message": "Request data is invalid.",
"errors": [
{
"error_code": 100000,
"error_message": "operation: The value you selected is not a valid choice."
},
{
"error_code": 100000,
"error_message": "methods: This value should not be blank."
},
{
"error_code": 100000,
"error_message": "order.number: This value should not be blank."
},
{
"error_code": 100000,
"error_message": "order.amount: This value should be greater than 0."
},
{
"error_code": 100000,
"error_message": "order.currency: This value is not valid."
},
{
"error_code": 100000,
"error_message": "order.description: This value should not be blank."
},
{
"error_code": 100000,
"error_message": "cancel_url: This value is not a valid URL."
},
{
"error_code": 100000,
"error_message": "success_url: This value should not be blank."
}
]
}

Hash Validation

The Checkout service always performs hash validation. The request will be rejected if the hash value is invalid.

Example Request - Hash Validation
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/session' \
--data-raw '{
"merchant_key":"xxxxx-xxxxx-xxxxx",
"operation":"purchase",
"methods":[
"card"
],
"order":{
"number":"order-1234",
"amount": "0.19",
"currency":"USD",
"description":"Important gift"
},
"cancel_url":"https://example.com/cancel",
"success_url":"https://example.com/success",
"customer":{
"name":"John Doe"
},
"hash":"wrong hash"
}
'
Example Response - Hash error
{
"error_code": 0,
"error_message": "Request data is invalid.",
"errors": [
{
"error_code": 100000,
"error_message": "hash: Hash is not valid."
}
]
}

Callback Notification


Checkout service sends the callback on the merchant notification_URL as a result of an operation.

You can receive the callback for the next operation types:

  • SALE
  • 3DS
  • REDIRECT
  • REFUND
  • VOID
  • RECURRING
  • CHARGEBACK

List of Possible Transaction Statuses

The possible statuses are listed below:

StatusOperation typeDescription
SUCCESSsale, 3ds, redirect, refund, void, recurring, chargebackTransaction is successfully completed in Payment Platform
FAILsale, refund, void, recurringTransaction has the errors and is not validated by Payment Platform
WAITINGsale, refund, void, recurringTransaction is being processed by Payment Platform

⚠️ Pay attention

that successful transaction does not mean successful final status for payment.

For example:
Payment is successfully completed if transaction has status = success and type = sale. Payment is not completed if transaction has status = success and type = redirect.

notification frequency

  • Real Time - right after transaction is completed
  • After 15 minutes of transaction completion if TESS did not receive 200 - OK for 1st attempt
  • After 30 minutes of transaction completion if TESS did not receive 200 - OK for 2nd attempt
  • After 45 minutes of transaction completion if TESS received 200 - OK for 3rd attempt

Callback parameters

Callback includes the following data:

ParameterTypeMandatory, LimitationsDescription
idStringRequiredTransaction ID
Example: dc66cdd8-d702-11ea-9a2f-0242c0a87002
order_numberStringRequired Up to 255 charactersOrder ID
Example: order-1234
order_amountFloatRequired Format: XX.XX, without leading zeroesProduct price
Example: 0.19
order_currencyStringRequired Up to 3 charactersCurrency (3-characters code)
Example: USD
order_descriptionStringRequired Up to 1024 charactersProduct description
Example: Important gift
typeStringRequired Up to 36 charactersOperation type: sale, 3ds, redirect, refund, void, chargeback
Example: sale
statusStringRequired Up to 20 charactersTransaction status: success, fail, waiting
Example: success
reasonStringOptional Up to 1024 charactersDecline or error reason (for "sale" and "refund" operation types only). It displays only if the transaction has FAIL status
Example: The operation was rejected. Please contact the site support
rrnStringOptionalRetrieval Reference Number value from the acquirer system
approval_codeStringOptionalApproval code value from the acquirer system
cardStringOptional
Format: ХХХХХХ****ХХХХ
Card number mask
Example: 411111******1111
card_expiration_dateStringOptionalCard expiration date
Example: 12/2022
card_tokenStringOptionalCard token. It is available if the parameter req_token was enabled
Example: VjFRaUxDSmhiR2NpT2lKU1V6STFO
customer_nameStringOptionalCustomer's first and last name
Example: John Rickher
customer_emailStringOptional Format: [email protected]Customer's email address
Example: [email protected]
customer_countryStringOptional Up to 3 charactersCustomer's country
Example: US
customer_stateStringOptional Up to 32 charactersCustomer's state
Example: California
customer_cityStringOptionalCustomer's city
Example: Los Angeles
customer_addressStringOptional Up to 32 charactersCustomer's address
Example: 123 Sample Street
customer_ipStringRequiredCustomer's IP
Example: 255.41.45.57
dateDateOptional Format: YYYY-MM-DD hh:mm:ss (UTC+0 Format)Transaction date
Example: 2020-08-05 07:41:10
recurring_init_trans_idStringOptionalReference to the first transaction that initializes the recurring (provided if recurring was initialized)
Example: dc66cdd8-d702-11ea-9a2f-0242c0a87099
recurring_tokenStringOptionalRecurring token (provided if recurring was initialized)
Example: e5f60b35485e
schedule_idStringOptionalIt is available if schedule is used for recurring sale
hashStringRequiredSpecial signature, used to validate callback Addition in Signature section.
Example: Must be SHA1 of MD5 encoded string (uppercased): payment_public_id + order.number + order.amount + order.currency + order.description + merchant.pass

Examples

Callback examples
Merchant successful sale callback
{
id=f0a51dfa-fc43-11ec-8128-0242ac120004
order_number=order-1234
order_amount=3.01
order_currency=USD
order_description=bloodline
type=sale
status=success
card=411111****1111
card_expiration_date=12/2022
schedule_id=4e46866c-f84b-11ec-8b4c-0242ac120007
recurring_init_trans_id=f0a51dfa-fc43-11ec-8128-0242ac120004
recurring_token=f0e24964-fc43-11ec-a7e0-0242ac120004
date=2022-07-05 09:22:09
hash=6d8d440e25bdfc5288616ce567496948d2562852
customer_name=D D
[email protected]
customer_country=US
customer_state=California
customer_city=Los Angeles
customer_address=Moor Building 35274 State ST Fremont. U.S.A
customer_ip=10.10.10.2
}
Merchant successful refund callback
{
id=f0a51dfa-fc43-11ec-8128-0242ac120004
order_number=order-1234
order_amount=3.01
order_currency=USD
order_description=bloodline
type=refund
status=success
card=411111****1111
card_expiration_date=12/2022
schedule_id=4e46866c-f84b-11ec-8b4c-0242ac120007
date=2022-07-05 09:28:01
hash=6d8d440e25bdfc5288616ce567496948d2562852
customer_name=D D
[email protected]
customer_country=US
customer_state=California
customer_city=Los Angeles
customer_address=Moor Building 35274 State ST Fremont. U.S.A
customer_ip=10.10.10.2
}
Merchant unsuccessful sale callback
{
id=1f34f446-fc45-11ec-a50f-0242ac120004
order_number=order-1234
order_amount=3.01
order_currency=USD
order_description=bloodline
type=sale
status=fail
card=411111****1111
card_expiration_date=12/2022
reason=Declined by processing.
date=2022-07-05 09:30:35
hash=7f15d178e9b2c8507dea57f8ed1efddb9573fa6b
customer_name=D D
[email protected]
customer_country=US
customer_state=California
customer_city=Los Angeles
customer_address=Moor Building 35274 State ST Fremont. U.S.A
customer_ip=10.10.10.2
}
Merchant unsuccessful refund callback
{
id=ba290c62-fc45-11ec-9e91-0242ac120004
order_number=order-1234
order_amount=3.01
order_currency=USD
order_description=bloodline
type=refund
status=fail
card=411111****1111
card_expiration_date=12/2022
reason=Declined by processing.
schedule_id=4e46866c-f84b-11ec-8b4c-0242ac120007
recurring_init_trans_id=ba290c62-fc45-11ec-9e91-0242ac120004
recurring_token=ba51844e-fc45-11ec-932c-0242ac120004
date=2022-07-05 09:38:00
hash=bcd78ff8b8e6b75aa1743910641217be6edc3a43
customer_name=D D
[email protected]
customer_country=US
customer_state=California
customer_city=Los Angeles
customer_address=Moor Building 35274 State ST Fremont. U.S.A
customer_ip=10.10.10.2
}

Recurring


Recurring payments are commonly used to create new transactions based on already stored cardholder information from previous operations. This request is sent by POST.

RECURRING request

/api/v1/payment/reсurring

Request Parameters

ParameterTypeMandatory, LimitationsDescription
merchant_keyStringRequiredKey for Merchant identification
Example: xxxxx-xxxxx-xxxxx
recurring_init_trans_idStringRequiredTransaction ID of the primary transaction in the Payment Platform
Example: dc66cdd8-d702-11ea-9a2f-0242c0a87002
recurring_tokenStringRequiredRecurring token
Example: 9a2f-0242c0a87002
schedule_idStringOptionalSchedule ID for recurring payments
hashStringRequiredSpecial signature to validate your request to Payment Platform Addition in Signature section
Example: Must be SHA1 of MD5 encoded string (uppercased): recurring_init_trans_id + recurring_token + order.number + order.amount + order.description + merchant_pass
orderObject
numberStringRequired
Not blank
max: 255
[a-zA-Z0-9-]
Order ID
Example: order-1234
amountFloatRequired
Not blank
Greater then 0
0-9
max: 255
Product price. Format: XX.XX
Pay attention that amount format depends on currency exponent.
If exponent = 0, then amount is integer (without decimals). It used for currencies: CLP, VND, ISK, UGX, KRW, JPY.
If exponent = 3, then format: xx.xxx (with 3 decimals). It used for currencies: BHD, JOD, KWD, OMR, TND.
Example: 0.19
descriptionStringRequired
min: 2 max: 1024
[a-zA-Z0-9!"#$%&'()*+,./:;&@]
Product name
Example: Very important gift - # 9

Response Parameters

ParameterTypeMandatory, LimitationsDescription
merchant_keyStringRequiredTransaction status
Example: PREPARE, SETTLED, PENDING, 3DS, REDIRECT, DECLINE, REFUND, REVERSAL, CHARGEBACK
reasonStringOptionalDecline reason translation for unsuccessful payment.
It displays only if the transaction is unsuccessful
Example: The operation was rejected. Please contact the site support
payment_idStringRequired
Up to 255 characters
Transaction ID (public)
Example: dc66cdd8-d702-11ea-9a2f-0242c0a87002
dateStringRequired
Format: YYYY-MM-DD hh:mm:ss
Transaction date
Example: 2020-08-05 07:41:10
schedule_idStringOptionalSchedule ID for recurring payments
orderObject
numberStringRequired
max: 255
Order ID
Example: order-1234
amountStringRequired
Format: XX.XX
Product price (currency will be defined by the first payment)
Example: 0.19
currencyStringRequired
3 characters
Currency
Example: USD
descriptionStringRequired
max: 1024
Product name
Example: Very important gift - # 9
Example Request
Recurring (settled)
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/payment/reсurring' \
--data-raw '{
"merchant_key":"xxxxx-xxxxx-xxxxx",
"order":{
"number":"order-1234",
"amount": "0.19",
"description":"very important gift"
},
"customer": {
"name": "John Doe",
"email": "[email protected]"
},
"recurring_init_trans_id":"dc66cdd8-d702-11ea-9a2f-0242c0a87002",
"recurring_token":"9a2f-0242c0a87002",
"schedule_id":"57fddecf-17b9-4d38-9320-a670f0c29ec0",
"hash":"{{session_hash}}"
}'
Recurring (declined)
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/payment/reсurring' \
--data-raw '{
"payment_id": "1f34f446-fc45-11ec-a50f-0242ac120004",
"date": "2022-07-05 09:30:34",
"status": "decline",
"reason": "Declined by processing.",
"order": {
"number": "order-1234",
"amount": "3.01",
"currency": "USD",
"description": "bloodline"
},
"customer": {
"name": "John Doe",
"email": "[email protected]"
}
}'
Example Response
Status Settled
{
"status": "settled",
"payment_id": "dc66cdd8-d702-11ea-9a2f-0242c0a87002",
"date": "2020-08-05 07:41:10",
"schedule_id":"57fddecf-17b9-4d38-9320-a670f0c29ec0",
"order": {
"number": "order-1234",
"amount": "0.19",
"currency": "USD",
"description": "very important gift"
}
}
Status Declined
{
"status": "declined",
"reason": "declined by processing",
"payment_id": "dc66cdd8-d702-11ea-9a2f-0242c0a87002",
"schedule_id":"57fddecf-17b9-4d38-9320-a670f0c29ec0",
"date": "2020-08-05 07:41:10",
"order": {
"number": "order-1234",
"amount": "0.19",
"currency": "USD",
"description": "very important gift"
}
}

Get transaction status


To get order status you can use GET_TRANS_STATUS request. Use payment public_id from Payment Platform in the request.

GET_TRANS_STATUS request

/api/v1/payment/status

Request Parameters

ParameterTypeMandatory, LimitationsDescription
merchant_keyStringRequiredKey for Merchant identification
Example: xxxxx-xxxxx-xxxxx
payment_idStringRequired Up to 255 charactersPayment ID (public)
Example: dc66cdd8-d702-11ea-9a2f-0242c0a87002
hashStringRequiredSpecial signature to validate your request to Payment Platform Addition in Signature section.
Example: Must be SHA1 of MD5 encoded string (uppercased): payment_id + merchant_pass

Response Parameters

ParameterTypeMandatory, LimitationsDescription
payment_idStringRequired Up to 255 charactersPayment ID (public)
Example: dc66cdd8-d702-11ea-9a2f-0242c0a87002
dateStringRequired Format: YYYY-MM-DD hh:mm:ssTransaction date
Example: 2020-08-05 07:41:10
statusStringRequiredPayment status: prepare, settled, pending, 3ds, redirect, decline, refund, void, reversal, chargeback
Example: settled
reasonStringOptionalDecline reason translation for unsuccessful payment. It displays only if the transaction is unsuccessful
Example: The operation was rejected. Please contact the site support
orderObject
numberStringRequired Up to 255 charactersOrder ID
Example: order-1234
amountStringRequired Format: XX.XXProduct price (currency will be defined by the first payment)
Example: 0.19
currencyStringRequired Up to 3 charactersCurrency
Example: USD
descriptionStringRequired Up to 1024 charactersProduct name
Example: Very important gift
customerObject
nameStringRequiredCustomer's name
Example: John Doe
Example Request
GET_TRANS_STATUS request (setteled)
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/payment/status' \
--data-raw '{
"merchant_key":"xxxxx-xxxxx-xxxxx",
"payment_id":"63c781cc-de3d-11eb-a1f1-0242ac130006",
"hash":"{{operation_hash}}"
}
'
GET_TRANS_STATUS request (declined)
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/payment/status' \
--data-raw '{
"merchant_key":"xxxxx-xxxxx-xxxxx",
"payment_id":"03e46e96-de42-11eb-aea7-0242ac140002",
"hash":"{{operation_hash}}"
}
'
Example Response
Status Settled
{
"payment_id": "24f7401c-fc47-11ec-8d07-0242ac120015",
"date": "2022-07-05 09:45:03",
"status": "settled",
"order": {
"number": "f0a51dfa-fc43-11ec-8128-0242ac120004-1",
"amount": "3.01",
"currency": "USD",
"description": "bloodline"
},
"customer": {
"name": "John Doe",
"email": "[email protected]"
}
}
Status Declined
{
"payment_id": "03e46e96-de42-11eb-aea7-0242ac140002",
"date": "2021-07-06 10:07:47",
"status": "decline",
"reason": "Declined by processing",
"order": {
"number": "order-1234",
"amount": "0.19",
"currency": "USD",
"description": "Important gift"
},
"customer": {
"name": "John Doe",
"email": "[email protected]"
}
}

Refund


To make refund you can use Refund request. Use payment public ID from Payment Platform in the request.

Refund request

/api/v1/payment/refund

Request Parameters

ParameterTypeMandatory, LimitationsDescription
merchant_keyStringRequiredKey for Merchant identification
Example: xxxxx-xxxxx-xxxxx
payment_idStringRequired Up to 255 charactersTransaction ID (public)
Example: dc66cdd8-d702-11ea-9a2f-0242c0a87002
amountStringOptional Format: XX.XX, without leading zeroesAmount to refund. It is required for particular refund. If amount is not specified the full order amount is settled by default.
Example: 0.19
hashStringRequiredSpecial signature to validate your request to Payment Platform Addition in Signature section.
Example: Must be SHA1 of MD5 encoded string (uppercased): payment.id + amount + merchant.pass

Response Parameters

ParameterTypeMandatory, LimitationsDescription
payment_idStringRequired Up to 255 charactersTransaction ID (public)
Example: dc66cdd8-d702-11ea-9a2f-0242c0a87002
resultStringRequiredRefund request result Example: accepted
Example Request
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/payment/refund' \
--data-raw '{
"merchant_key":"xxxxx-xxxxx-xxxxx",
"payment_id":"63c781cc-de3d-11eb-a1f1-0242ac130006",
"amount":"0.10",
"hash":"{{operation_hash}}"
}
'
Example Response - Refund request accepted
Body
{
"payment_id": "63c781cc-de3d-11eb-a1f1-0242ac130006",
"result": "accepted"
}

Void


To make a void for an operation which was performed the same financial day you can use Void request.

The Void request is allowed for the payments in SETTLED status only.

Use payment public ID from Payment Platform in the request.

Void request

/api/v1/payment/void

Request Parameters

ParameterTypeMandatory, LimitationsDescription
merchant_keyStringRequiredKey for Merchant identification
Example: xxxxx-xxxxx-xxxxx
payment_idStringRequired Up to 255 charactersTransaction ID (public)
Example: dc66cdd8-d702-11ea-9a2f-0242c0a87002
hashStringRequiredSpecial signature to validate your request to Payment Platform Addition in Signature section.
Must be SHA1 of MD5 encoded string (uppercased): payment.id + merchant.pass

Response Parameters

ParameterTypeMandatory, LimitationsDescription
statusStringRequiredPayment status
Example: VOID / SETTLED
payment_idStringRequired Up to 255 charactersTransaction ID (public)
Example: dc66cdd8-d702-11ea-9a2f-0242c0a87002
dateStringRequired
Format: YYYY-MM-DD hh:mm:ss
Transaction date
Example: 2020-08-05 07:41:10
reasonStringOptionalDecline or error reason (for "sale", "void "and "refund" operation types). It displays only if the transaction has FAIL status
Example: The operation was rejected. Please contact the site support
orderObject
numberStringRequiredOrder ID
Example: order-1234
amountStringRequiredProduct price
Example: 0.19
currencyStringRequired Up to 3 charactersCurrency
Example: USD
descriptionStringRequired Up to 1024 charactersProduct name
Example: Very important gift
Example Request
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/payment/void' \
--data-raw '{
"merchant_key":"xxxxx-xxxxx-xxxxx",
"payment_id":"63c781cc-de3d-11eb-a1f1-0242ac130006",
"hash":"{{operation_hash}}"
}
'
Example Response: Void successful
{
"status": "SUCCESS",
"payment_status": "void",
"payment_id": "dc66cdd8-d702-11ea-9a2f-0242c0a87002",
"date": "2020-08-05 07:41:10",
"order": {
"number": "order-1234",
"amount": "0.19",
"currency": "USD",
"description": "very important gift"
}
}
Example Response: Void failed
{
"status": "FAIL",
"payment_status": "settled",
"payment_id": "dc66cdd8-d702-11ea-9a2f-0242c0a87002",
"date": "2020-08-05 07:41:10",
"reason": "Declined by processing",
"order": {
"number": "order-1234",
"amount": "0.19",
"currency": "USD",
"description": "very important gift"
}
}

Signature


Sign is signature rule used either to validate your requests to payment platform or to validate callback from payment platform to your system.

Authentication Signature

It must be SHA1 of MD5 encoded string and calculated by the formula below:

*sha1(md5(strtoupper(id.order.amount.currency.description.PASSWORD)))

// Use the CryptoJSvar

Example for JS

var to_md5 = order.number + order.amount + order.currency + order.description + merchant.pass;

// Use the CryptoJS

var hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString());

var result = CryptoJS.enc.Hex.stringify(hash);

Get Transaction Status Signature

It must be SHA1 of MD5 encoded string and calculated by the formula below:

hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString()); *sha1(md5(strtoupper))

// Use the CryptoJSvar

Example for JS

var to_md5 = payment.id + merchant.pass;

// Use the CryptoJS

var hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString());

var result = CryptoJS.enc.Hex.stringify(hash);

Refund Signature

It must be SHA1 of MD5 encoded string and calculated by the formula below:

hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString()); *sha1(md5(strtoupper))

// Use the CryptoJSvar

Example for JS

var to_md5 = payment.id + amount + merchant.pass;

// Use the CryptoJS

var hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString());

var result = CryptoJS.enc.Hex.stringify(hash);

Void Signature

It must be SHA1 of MD5 encoded string and calculated by the formula below:

hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString()); *sha1(md5(strtoupper))

// Use the CryptoJSvar

Example for JS

var to_md5 = payment.id + merchant.pass;

// Use the CryptoJS

var hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString());

var result = CryptoJS.enc.Hex.stringify(hash);

Recurring Signature

It must be SHA1 of MD5 encoded string and calculated by the formula below:

*sha1(md5(strtoupper(recurring_init_trans_id.recurring_token.order_id.amount.description.merchant.pass)))

// Use the CryptoJSvar

Example for JS

var to_md5 = recurring_init_trans_id + recurring_token + order.number + order.amount + order.description + merchant.pass;

// Use the CryptoJS

var hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString());

var result = CryptoJS.enc.Hex.stringify(hash);

Callback Signature

It must be SHA1 of MD5 encoded string and calculated by the formula below:

hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString()); *sha1(md5(strtoupper(payment_public_id.order_id.amount.currency.description.PASSWORD)))

Example for JS

var to_md5 = payment_public_id + order.number + order.amount + order.currency + order.description + merchant.pass;

// Use the CryptoJS

var hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString());

var result = CryptoJS.enc.Hex.stringify(hash);

Success/Cancel Url Signature

It must be SHA1 of MD5 encoded string and calculated by the formula below:

var to_md5 = payment_public_id + order.number + order.amount + order.currency + order.description + merchant.password;
_hash = CryptoJS.SHA1(CryptoJS.MD5(to_md5.toUpperCase()).toString());

Testing


You can test your integration. To do the test you need to perform the actions with the API using (in test mode). For instance, send the request and receive the response with a link on the Checkout page.
To mark your transactions as test in the system, you should use Merchant Test Key as value of the merchant_key parameter. You can contact your administrator to make sure that you have the necessary settings to work with test transactions.

Use the following test data to emulate the different scenarios.

Scenario: SUCCESS payment

Card data:

Card number 4111 1111 1111 1111
Expiry Date 01/25
CVV2 any 3 digits

Result: customer is redirected to the "success_URL"

Scenario: FAILED payment (decline)

Card data:

Card number 4111 1111 1111 1111
Expiry Date 02/25
CVV2 any 3 digits

Result: customer gets an error message: Declined by processing.

Scenario: SUCCESS 3DS payment

Card data:

Card number 4111 1111 1111 1111
Expiry Date 05/25
CVV2 any 3 digits

Result: customer is redirected to the "success_URL" after 3DS verification

Scenario: FAILED 3DS paymentу

Card data:

Card number 4111 1111 1111 1111
Expiry Date 06/25
CVV2 any 3 digits

Result: customer gets unsuccessful sale after 3DS verification

Scenario: FAILED payment (Luhn algorithm)

Card data:

Card number 1111 2222 3333 4444
Expiry Date 01/25
CVV2 any 3 digits

Result: customer gets an error message: Bad Request. Brand of card does not support.

Payment methods


You can choose the payment methods that you want to display on the payment form. Use methods array in the Authentication request and specify the values that correspond to the payment methods. As well, you can use the value of the payment method to add specific parameters to the Authentification request for the paramaters object. These parameters will be sent to the acquirer to pass the necessary data for successful payment.

card

If the payer chooses the card payment method, fields with card data will be displayed on the Checkout page.

For some connector services, it is necessary to send additional parameters in the Authenticaion request for the paramaters object (for more information, contact your manager).

Additional parameters - Set 1 (BNG)

ParameterTypeMandatoryDescription
bnrg_installm_defnumeric justified to 2 digitsRequiredIndicates the number of months that will elapse from the purchase until the total or partial charge is made to the cardholder's account (initial deferral).
Possible values:
01 - one month
00 - no delay initial
bnrg_installm_monthsnumeric justified to 2 digitsRequiredIndicates the number of monthly payments in which the total amount of the transaction will be divided.
Example: 03 - 3 months
bnrg_installm_plannumeric justified to 2 digitsRequiredIndicates if the promotion It will be ́ with interest or without interest.
Possible values:
03 - no interest
05 - with interest
07 - defer only initial.
Authentication request example
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/session' \
--data-raw '{
"merchant_key": "xxxxx-xxxxx-xxxxx",
"operation": "purchase",
"methods": [
"card"
],
"parameters": {
"card": {
"bnrg_installm_def": "03",
"bnrg_installm_months": "03",
"bnrg_installm_plan": "03"
}
},
"order": {
"number": "order-1234",
"amount": "1000.19",
"currency": "MXN",
"description": "Important gift"
},
"cancel_url": "https://example.com/cancel",
"success_url": "https://example.com/success",
"customer": {
"name": "John Doe",
"email": "[email protected]"
},
"billing_address": {
"country": "US",
"state": "CA",
"city": "Los Angeles",
"address": "Moor Building 35274",
"zip": "123456",
"phone": "347771112233"
},
"hash": "{{session_hash}}",
}
'

Additional parameters - Set 2 (FCP)

ParameterTypeMandatoryDescription
subjectIdstringRequiredID of an bank account from the partner
toBankAccountIdstringRequiredID of one of the partner's clients
Authentication request example
curl --location -g --request POST '{{CHECKOUT_HOST}}/api/v1/session' \
--data-raw '{
"merchant_key": "xxxxx-xxxxx-xxxxx",
"operation": "purchase",
"methods": [
"card"
],
"parameters": {
"card": {
"subjectId": "7c698450-0a9c-456f-bd39-9f442a9744c7",
"toBankAccountId": "a1a1134a-32c6-442c-90c9-66b587d5be00"
}
},
"order": {
"number": "order-1234",
"amount": "1000.19",
"currency": "BRL",
"description": "Important gift"
},
"cancel_url": "https://example.com/cancel",
"success_url": "https://example.com/success",
"customer": {
"name": "John Doe",
"email": "[email protected]"
},
"billing_address": {
"country": "US",
"state": "CA",
"city": "Los Angeles",
"address": "Moor Building 35274",
"zip": "123456",
"phone": "347771112233"
},
"hash": "{{session_hash}}",
}
'

applepay

payment_method = applepay

naps

payment_method = naps (Tokenization is not supported on naps payment method)

om-wallet

If the payer chooses the om-wallet payment method, the field for entering the phone number in international format will be additionally displayed on the Checkout page. billing_address -> country is required for this payment method.