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checkout integration

Version: 0.0.1
Released: 2023/12/1

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 FormData and some API requires with JsonData

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.

Integration process#

Before you get an account to access Payment Platform, you must provide the following data to the Payment Platform administrator.

Data Description
Callback URL URL which will be receiving the notifications of the processing results of your request to Payment Platform.
It is mandatory if your account supports 3D-Secure. The length of Notification URL should not be more
than 255 symbols.
Contact email Email address of Responsible Person who will monitor transactions, conduct refunds, etc.

With all Payment Platform POST requests at Notification URL the Merchant must return the string OK if he/she successfully received data or return ERROR.

You should get the following information from administrator to begin working with the Payment Platform.

Data Description
CLIENT_KEY Unique key to identify the account in Payment Platform (used as request parameter). In the administration platform this parametercorresponds to the Merchant key field
PASSWORD Password for Client authentication in Payment Platform (used for calculating hash parameter). In the administration platform this parameter corresponds to the Password field
PAYMENT_URL URL to request the Payment Platform

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
  • RECURRING

List of possible actions in Payment Platform#

When you make request to Payment Platform, you need to specify action that needs to be done. Possible actions are:

Action Description
Initiate Creates SALE or AUTH transaction
Refund Refund transaction
STATUS Gets status of transaction
Recurring Creates SALE or AUTH transaction using previously used cardholder data

List of possible transaction results and statuses#

Result – value that system returns on request. Possible results are:

Result Description
SUCCESS Action was successfully completed in Payment Platform
DECLINED Result of unsuccessful action in Payment Platform
REDIRECT Additional action required from requester (Redirect to 3ds)
ACCEPTED Action was accepted by Payment Platform, but will be completed later
ERROR Request has errors and was not validated by Payment Platform

Status – actual status of transaction in Payment Platform. Possible statuses are:

Status Description
3DS The transaction awaits 3D-Secure validation
REDIRECT The transaction is redirected
SETTLED Successful transaction
REFUND Transaction for which refund was made
DECLINED Not successful transaction

Callback parameters#

Notification endpoint must be of method POST and able to accept form-data as the content type.

Successful sale response (Card Payment) #
Parameter Description
action SALE
result SUCCESS
status PENDING / PREPARE / SETTLED; only PENDING when auth = Y
order_id Transaction ID in the Merchant's system
trans_id Transaction ID in the Payment Platform
trans_date Transaction date in the Payment Platform
descriptor Descriptor from the bank, the same as cardholder will see in the bank statement
recurring_token Recurring token (get if account support recurring sales and was initialization transaction for following recurring)
schedule_id Schedule ID for recurring payments. It is available if schedule is used for recurring sale
card_token If the parameter req_token was enabled Payment Platform returns the token value
amount Order amount
currency Currency

Unsuccessful sale response (Card Payment)#
Parameter Description
action SALE
result DECLINED
status DECLINED
order_id Transaction ID in the Merchant's system
trans_id Transaction ID in the Payment Platform
trans_date Transaction date in the Payment Platform
descriptor Descriptor from the bank, the same as cardholder will see in the bank statement
amount Order amount
currency Currency
decline_reason The reason why the transaction was declined
hash Special signature, used to validate callback

3D-Secure transaction response#
Parameter Description
action SALE
result REDIRECT
status 3DS / REDIRECT
order_id Transaction ID in the Merchant's system
trans_id Transaction ID in the Payment Platform
trans_date Transaction date in the Payment Platform
descriptor Descriptor from the bank, the same as cardholder will see in the bank statement
amount Order amount
currency Currency
redirect_url URL to which the Merchant should redirect the Customer
redirect_params Object of specific 3DS parameters. It is array if redirect_params have no data. The availability of the redirect_params depends on the data transmitted by the acquirer. redirect_params may be missing. It usually happens when redirect_method = GET
redirect_method The method of transferring parameters (POST / GET)
card Masked card details
card_expiration_date The method

Sale response (Apple Pay)#
Parameter Description
id Transaction ID in the Payment Platform
order_number Transaction ID in the Merchant's system
order_amount Order amount
order_currency Order currency
order_description Order description
hash Must be SHA1 of MD5 encoded string (uppercased): payment_public_id + order.number + order.amount + order.currency + order.description + merchant.pass
type (sale/refund)
status (success/fail)

Sale response (Manafith)#
Parameter Description
id Transaction ID in the Payment Platform
order_number Transaction ID in the Merchant's system
order_amount Order amount
order_currency Order currency
order_description Order description
hash Must be SHA1 of MD5 encoded string (uppercased): payment_public_id + order.number + order.amount + order.currency + order.description + merchant.pass
type (sale/refund)
status (success/fail)
source (manafith)


PAYMENT OPERATIONS#

Initiate request#

Payment Platform supports two main operation type: Single Message System (SMS) and Dual Message System (DMS).

SMS is represented by SALE transaction. It is used for authorization and capture at a time. This operation is commonly used for immediate payments.

DMS is represented by AUTH and CAPTURE transactions. AUTH is used for authorization only, without capture. This operation used to hold the funds on card account (for example to check card validity).

SALE request is used to make both SALE and AUTH transactions.

If you want to make AUTH transaction, you need to use parameter auth with value Y.

This request is sent by POST as Form-Data in the background (e.g. through PHP CURL).


Initiate request

POST  https://api.edfapay.com/payment/initiate


Request parameters#

Parameter Description Values Required field
action Sale SALE +
edfa_merchant_id Unique key (client_key) Edfapay merchant key - UUID format value xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx +
order_id Transaction ID in the Merchants system String up to 255 characters String up to 255 characters +
order_amount The amount of the transaction Numbers in the format XXXX.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: XXXX.XXX (with 3 decimals). It used for currencies: BHD, JOD, KWD, OMR, TND.		 +
order_currency Currency 3-letter code +
order_description Description of the transaction (product name) String up to 1024 characters +
req_token Special attribute pointing for further tokenization Y or N (default N) -
payer_first_name Customer's name String up to 32 characters +
payer_last_name Customer's surname String up to 32 characters +
payer_middle_name Customer's middle name String up to 32 characters -
payer_birth_date Customer's birthday format yyyy-MM-dd, e.g. 1970-02-17 -
payer_address Customer's address String up to 255 characters +
payer_address2 The adjoining road or locality (if required) of the сustomer's address String up to 255 characters -
payer_country Customer's country 2-letter code +
payer_state Customer's state String up to 32 characters -
payer_city Customer's city String up to 32 characters +
payer_zip ZIP-code of the Customer String up to 10 characters +
payer_email Customer's email String up to 256 characters +
payer_phone Customer's phone String up to 32 characters +
payer_ip IP-address of the Customer XXX.XXX.XXX.XXX +
term_url_3ds URL to which Customer should be returned after 3D-Secure String up to 1024 characters +
recurring_init Initialization of the transaction with possible following recurring Y or N (default N) -
auth Indicates that transaction must be only authenticated, but not captured Y or N (default N) -
hash Special signature to validate your request to Payment Platform see Initiate signature +

*This field becomes optional if card_token is specified

If the optional parameter card_token and card data are specified, card_token will be ignored.

If the optional parameters req_token and card_token are specified, req_token will be ignored.

Request parameters#

Request with format-data 
{
curl --location 'https://api.edfapay.com/payment/initiate' \
--form 'action'="SALE" 
--form 'edfa_merchant_id'="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" 
--form 'order_id'="ORD001" 
--form 'order_currency'="SAR"
--form 'order_description'="An order"
--form 'req_token'="N"
--form 'payer_first_name'="FisrtName"
--form 'payer_last_name'="LastName"
--form 'payer_address'="example@example.com"
--form 'payer_country'="SA"
--form 'payer_city'="Riyadh"
--form 'payer_zip'="12221"
--form 'payer_email'="example@example.com"
--form 'payer_phone'="966565555555"
--form 'payer_ip'="176.44.76.222"
--form 'term_url_3ds'="https://successorfailurl.com"
--form 'auth'="N"
--form 'recurring_init'="N"
--form 'hash'="xxxxxxx-xxxx-xxxxxx"

}

Response parameters#

Response with Json format 
{
  "redirect_url" : "https://pay.edfapay.com/merchant/checkout/Order110/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" 
 
}

Recurring request#

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

POST  https://api.edfapay.com/payment/recurring

Request parameters#

Parameter Description Values Required field
gwayId String , Public transaction id of Payment Gateway xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx +
order_id String , Order Id of merchant system UUID format value +
edfapay_merchant_id String , Merchant Key indentifier xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID format value +
amount 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 		+
hash Special signature to validate your request to payment platform see recurring signature +
payer_ip Payment Payer ip platform Example: 172.34.34.12 +

Request parameters#

Request with Json format 
curl --location 'https://api.edfapay.com/payment/recurring' \
--date '{ 
     "merchant_id": "b1efc42a-67d3-4bdc-8382-7059bb665036",
     "action": "RECURRING_SALE",
     "order_id": "OrderID",
     "primary_order_id": "Abdul00012",
     "amount":"1.00"
     "recurring_token": "58ccf36e-466f-11ee-840d-7a6dc1121caa"
     "order_description": "Recurring test order",
     "payer_ip": "176.44.76.222",
     "hash": "hash-value", 
}

Response parameters#

Response with Json format 
{ 
"Status":"settled" 
"payment_id": "xxxx-xxxx-xxxx-xxx" 
"date" : "2023"-09-22 19:33:01",
   "order": {
       "number": "1122", 
       "amount: "700", 
       "currency": "SAR",
       "description: order description"
      },    

}

Refund request#

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


Refund request

POST  https://api.edfapay.com/payment/refund

Request parameters#

Parameter Description Values Required field
edfapay_merchant_id Unique key (client_key) Edfapay merchant key - Json value xxxxx-xxxxx-xxxxx +
gwayId String , Public transaction id of Payment Gateway xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx +
trans_id Transaction ID in the Payment Platform String xxxx-xxxx-xxxx-xxx +
order_id Transaction ID in the Merchants system String up to 255 characters String up to 255 characters +
hash Special signature to validate your request to Payment Platform see refund signature +
payer_ip Cleint IP String Example: 172.34.34.12 +
amount String Amount to refund. It is required for particular refund. If amount is not specified the full order amount is settled by default. Example: 0.19 +

Request parameters#

Request with Json format 
curl --location 'https://api.edfapay.com/payment/refund' \
--date '{ 
     "edfa_merchant_id": "b1efc42a-67d3-4bdc-8382-7059bb665036",
     "gwayId": "xxx-xxx-xxx-xxx-xxxx",
     "order_id": "OrderID",
     "amount":"1.00"
     "payer_ip": "176.44.76.222",
     "hash": "hash-value", 
}

Response parameters#

Response with Json format 
{
 "StatusCode : 200" 
 "responseBody": { 
       "result" : "accepted",
       "payment_id":"xxxxxxxx-xxxxx-xxxxxxx-xxx"
  }

}

Status request#

To get order status you can STATUS request. Use payment gway_Payment_Id from Payment Platform in the request.


Status request

POST  https://api.edfapay.com/payment/status

Request Parameters#

Parameter Description Values Required
merchant_id Unique key (client_key) Edfapay merchant key - Json value xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx +
gway_Payment_Id String , Public transaction id of Payment Gateway xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx +
order_id String , Order Id of merchant system OrderNumber10 +
order_id Transaction ID in the Clients system String up to 255 characters +
hash String see status signature +

Request parameters#

Request with Json format 
curl --location 'https://api.edfapay.com/payment/status' \
--date '{ 
     "edfa_merchant_id": "b1efc42a-67d3-4bdc-8382-7059bb665036",
     "order_id": "OrderID",
     "payer_ip": "176.44.76.222",
     "hash": "hash-value", 
}


Response parameters#

Response with Json format 
{ 
"StatusCode : 200" 
 "responseBody": { 
       "date" : "2023"-09-22 19:33:01",
       "status":"settled"

   "order": {
       "number": "1122", 
       "amount: "700", 
       "currency": "SAR",
       "description: order description"
      },

    "customer: {
       "name": "Client Name "
       "email":"Client Email 
      },
 
     "payment_id": :xxxxx-xxxxxx-xxxxxx-xxxxx 

  }
}

Signature#

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


Initiate 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);


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);


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);


Status 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 = 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);


Errors#

In case of an error you get synchronous response from Payment Platform:

Parameter Description
result ERROR
error_message Error message
error_code Error code

The list of the error codes is shown below.

Code Description
204002 Enabled merchant mappings or MIDs not found.
204003 Payment type not supported.
204004 Payment method not supported.
204005 Payment action not supported.
204006 Payment system/brand not supported.
204007 Day MID limit is not set or exceeded.
204008 Day Merchant mapping limit is not set or exceeded.
204009 Payment type not found.
204010 Payment method not found.
204011 Payment system/brand not found.
204012 Payment currency not found.
204013 Payment action not found.
204014 Month MID limit is exceeded.
204015 Week Merchant mapping limit is exceeded.
208001 Payment not found.
208002 Not acceptable to request the 3ds for payment not in 3ds status.
208003 Not acceptable to request the capture for payment not in pending status.
208004 Not acceptable to request the capture for amount bigger than auth amount.
208005 Not acceptable to request the refund for payment not in settled or pending status.
208006 Not acceptable to request the refund for amount bigger than payment amount.
208008 Not acceptable to request the reversal for amount bigger than payment amount.
208009 Not acceptable to request the reversal for partial amount.
208010 Not acceptable to request the chargeback for amount bigger than payment's amount.
205005 Card token is invalid or not found.
205006 Card token is expired.
205007 Card token is not accessible.
400 Duplicate request.
400 Previous payment not completed.
Sample of error-response 
{"result": "ERROR",    "error_code": 100000,    "error_message": "Request data is invalid.",    "errors": [        {            "error_code": 100000,            "error_message": "card_number: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "card_exp_month: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "card_exp_year: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "card_cvv2: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "order_id: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "order_amount: 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 should not be blank."        },        {            "error_code": 100000,            "error_message": "order_description: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "payer_first_name: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "payer_last_name: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "payer_address: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "payer_country: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "payer_city: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "payer_zip: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "payer_email: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "payer_phone: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "payer_ip: This value should not be blank."        },        {            "error_code": 100000,            "error_message": "term_url_3ds: This value should not be blank."        }    ]}

Testing#

You can make test requests using data below. Please note, that all transactions will be processed using Test engine.

Card number Card expiration date (MM/YYYY) Testing / Result
4111111111111111 01/2025 This card number and card expiration date must be used for testing successful sale
Response on successful SALE request:
{action: SALE, result: SUCCESS, status: SETTLED}
Response on successful AUTH request:
{action: SALE, result: SUCCESS, status: PENDING}
2223000000000007 01/2039 This card number and card expiration date must be used for testing
Response on SALE/AUTH request:
{action: SALE, result: REDIRECT, status: REDIRECT}
Return to the system:
{action: SALE, result: DECLINED, status: DECLINED}
5123450000000008 01/2039 This card number and card expiration date must be used for testing
Response on SALE/AUTH request::
{action: SALE, result: REDIRECT, status: REDIRECT}
Return to the system:
{action: SALE, result: DECLINED, status: DECLINED}
4508750015741019 01/2039 This card number and card expiration date must be used for testing
Response on SALE/AUTH request:
{action: SALE, result: REDIRECT, status: REDIRECT}
Return to the system:
{action: SALE, result: DECLINED, status: DECLINED}