Merchant Hosted Integration

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The pre_authorize parameter is used to pre-authorize payments using the Merchant Hosted Checkout integration with the _payment API.

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Note:

You need to activate the Pre-Authorize Payments before you start using this integration. Contact your PayU Key Account Manager (KAM) to activate Pre-Authorize Payments.

Step 1: Post the Pre-Auth transaction request

Post the additional parameters for with the Pre-Authorization using the Merchant Hosted Checkout. For complete list of parameters, refer to Pre-Authorize Payment for the complete list parameters with Try It experience.

Environment

Environment

Test Environmenthttps://test.payu.in/_payment
Production Environmenthttps://secure.payu.in/_payment

The pre_authorize parameter as specified is used to pre-authorize payments using the Merchant Hosted Checkout integration with the _payment API. For the complete list of parameters and "Try-It" experience for _payment API, refer to Merchant Hosted Integration - Pre-Authorize Payment.

ParameterDescriptionExample
pg
mandatory		String The pg parameter determines which payment tabs will be displayed on the PayU page. For cards, 'CC' will be the value.CC
bankcode mandatoryString Each payment option is identified with a unique bank code at PayU. The merchant must post this parameter with the corresponding payment option’s bank code value in it.AMEX
pre_authorize
mandatory for Pre-Auth		This parameter is set to 1 to pre-authorize payment using PayU Hosted Checkout.
ccnum
mandatory		String Use 13-19 digit card number for credit/debit cards (15 digits for AMEX, 13-19 for Maestro) and validate with LUHN algorithm. Refer to Card Number Formats and display error message on invalid input.5123456789012346
ccname
mandatory		String This parameter must contain the name on card – as entered by the customer for the transaction.Ashish Kumar
ccvv
mandatory		String Use 3-digit CVV number for credit/debit cards and 4-digit security code (4DBC/CID) for AMEX cards. Validate with BIN API.123
ccexpmon
mandatory		String This parameter must contain the card’s expiry month – as entered by the user for the transaction. It must always be in 2 digits or in MM format. For months 1-9, this parameter must be appended with 0 – like 01, 02…09. For months 10-12, this parameter must not be appended – It should be 10,11 and 12 respectively.10
ccexpyr
mandatory		String This parameter must contain the card’s expiry year – as entered by the customer for the transaction. It must be of four digits.2021

Hashing

You must hash the request parameters using the following hash logic:

sha512(key|txnid|amount|productinfo|firstname|email|udf1|udf2|udf3|udf4|udf5||||||SALT)

For more information, refer to Generate Hash.

Sample request

curl --request POST \
     --url 'https://test.payu.in/_payment?form=2' \
     --header 'Content-Type: application/x-www-form-urlencoded' \
     --header 'accept: text/plain' \
     --data key=JPM7Fg \
     --data pg=CC \
     --data bankcode=CC \
     --data pre_authorize=1 \
     --data surl=https://test-payment-middleware.payu.in/simulatorResponse \
     --data furl=https://test-payment-middleware.payu.in/simulatorResponse \
     --data txnid=ypskjfdaaksdjfh \
     --data amount=10000 \
     --data productinfo=iPhone \
     --data firstname=Ashish \
     --data [email protected] \
     --data phone=9889XXXXXX \
     --data ccnum=512*******012346 \
     --data ccname=Ashish \
     --data ccexpmon=11 \
     --data ccexpyr=2025 \
     --data ccvv=123 \
     --data hash=d99f230c19d781016fa64c57f976d0ec8ff3761fe5d9d6448933cf46d7177db6fb7b370e551e39dd37f2045a2a761f9065f8462838bbaad22963c083c84f9ced

Step 2: Check the response from PayU

Hash validation logic for payment response (Reverse Hashing)

While sending the response, PayU takes the exact same parameters that were sent in the request (in reverse order) to calculate the hash and returns it to you. You must verify the hash and then mark a transaction as a success or failure. This is to make sure the transaction has not tampered within the response.

The order of the parameters is similar to the following code block:

sha512(SALT|status||||||udf5|udf4|udf3|udf2|udf1|email|firstname|productinfo|amount|txnid|key)

Sample response

The formatted sample response body is similar to the following, and you need to look for the following parameters:

  • PG_TYPE: CC PG
  • bankcode: CC
  • unamappedstatus: auth
  {
  "mihpayid": "403993715531065775",
  "mode": "CC",
  "status": "success",
  "unmappedstatus": "captured",
  "key": "JPM7Fg",
  "txnid": "ypskjfdaaksdjfh",
  "amount": "10000.00",
  "cardCategory": "domestic",
  "discount": "0.00",
  "net_amount_debit": "10000",
  "addedon": "2024-02-26 07:20:56",
  "productinfo": "iPhone",
  "firstname": "Ashish",
  "lastname": "",
  "address1": "",
  "address2": "",
  "city": "",
  "state": "",
  "country": "",
  "zipcode": "",
  "email": "[email protected]",
  "phone": "9889843845",
  "udf1": "",
  "udf2": "",
  "udf3": "",
  "udf4": "",
  "udf5": "",
  "udf6": "",
  "udf7": "",
  "udf8": "",
  "udf9": "",
  "udf10": "",
  "hash": "00f188fdda2d60d418b147e7dce3a6ead172cf760a95a4df09b763f7627c01d867127e022de97841f1fe41cecb420b12b482fd8b68aaf66476b840bdfe82ca3c",
  "field1": "261005309469848160",
  "field2": "724760",
  "field3": "10000.00",
  "field4": "",
  "field5": "00",
  "field6": "02",
  "field7": "AUTHPOSITIVE",
  "field8": "AUTHORIZED",
  "field9": "Transaction is Successful",
  "payment_source": "payu",
  "PG_TYPE": "CC-PG",
  "bank_ref_num": "261005309469848160",
  "bankcode": "CC",
  "error": "E000",
  "error_Message": "No Error",
  "cardnum": "XXXXXXXXXXXX2346",
  "cardhash": "This field is no longer supported in postback params.",
  "splitInfo": "{\"splitStatus\":\"splitNotReceived\",\"splitSegments\":[]}"
}

Step 3: Capture a Pre-authorized payment

To capture a pre-authorized payment, use the following command. After the API command is successful, the transaction would be captured and settled to you.

Environment

Environment

Test Environmenthttps://test.payu.in/merchant/postservice?form=2
Production Environmenthttps://info.payu.in/merchant/postservice?form=2

Sample request

curl --location --request POST 'https://info.payu.in/merchant/postservice.php?form=2' \ 
--header 'Content-Type: application/x-www-form-urlencoded' \ 
--form 'key="JF***g"' \ 
--form 'command="capture_transaction"' \ 
--form 'hash="67411736ab98c59522492a12751a6015c41b87764019f9dc14052690c2c7af9095d31002fc109dcf3596c2f38792d56db6f6207b1989010f2adf51c144fa3019"' \ 
--form 'var1="15246574846"' \ 
--form 'var2="authorizeTransaction123"' \ 
--form 'var3="1"'

Sample response

{ 
    "status": 1, 
    "msg": "Capture Request Queued", 
    "request_id": "Request ID", 
    "bank_ref_num": "Bank Reference Number" 
}

Step 3: Check Action Status

  • To check the status of the transaction, use the verify_payment API. For more information, refer to Verify Payment API
  • To check the status of the Auth Request and then Capture Request sent, use the check_action_status API. For more information, refer to Check Refund Status API with Request ID.

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Note:

Sample response

Failure scenario

{ 
    "status": 1, 
    "msg": "1 out of 1 Transactions Fetched Successfully", 
    "transaction_details": { 
        "18315176038": { 
            "12806028149": { 
                "mihpayid": "18315176038", 
                "bank_ref_num": "6969235068376733806127", 
                "request_id": "12806028149", 
                "amt": "2.00", 
                "mode": "CC", 
                "action": "auth", 
                "token": "", 
                "status": "SUCCESS", // Auth is successful 
                "bank_arn": null, 
                "settlement_id": null, 
                "amount_settled": null, 
                "UTR_no": null, 
                "value_date": null, 
                "refund_mode": "-" 
            }, 
            "12806028151": { 
                "mihpayid": "18315176038", 
                "bank_ref_num": null, 
                "request_id": "12806028151", 
                "amt": "1.00", 
                "mode": "CC", 
                "action": "capture", 
                "token": "Cap_18315176038_01", 
                "status": "QUEUED", // Capture is in queue statue  
                "bank_arn": null, 
                "settlement_id": null, 
                "amount_settled": null, 
                "UTR_no": null, 
                "value_date": null, 
                "refund_mode": "-" 
            } 
        } 
    }

Success scenario

{ 
    "status": 1, 
    "msg": "1 out of 1 Transactions Fetched Successfully", 
    "transaction_details": { 
        "18283829909": { 
            "12781896792": { 
                "mihpayid": "18283829909", 
                "bank_ref_num": "6966342376826003206121", 
                "request_id": "12781896792", 
                "amt": "1031.00", 
                "mode": "CC", 
                "action": "auth", 
                "token": "", 
                "status": "SUCCESS", 
                "bank_arn": null, 
                "settlement_id": null, 
                "amount_settled": null, 
                "UTR_no": null, 
                "value_date": null, 
                "refund_mode": "-" 
            }, 
            "12781896793": { 
                "mihpayid": "18283829909", 
                "bank_ref_num": "6969233152136917105030", 
                "request_id": "12781896793", 
                "amt": "426.00", 
                "mode": "CC", 
                "action": "capture", 
                "token": "PZT2310070446VG2VC01", 
                "status": "success", // Auth is successful 
                "bank_arn": null, 
                "settlement_id": "202310111115", 
                "amount_settled": "418.7100", 
                "UTR_no": null, 
                "value_date": null, 
                "refund_mode": "-" 
            }, 
            "12806008126": { 
                "mihpayid": "18283829909", 
                "bank_ref_num": null, 
                "request_id": "12806008126", 
                "amt": "605.00", 
                "mode": "CC", 
                "action": "cancel", 
                "token": "825816e28afb809be802c7b", 
                "status": "SUCCESS", // Capture is successful 
                "bank_arn": null, 
                "settlement_id": null, 
                "amount_settled": null, 
                "UTR_no": null, 
                "value_date": null, 
                "refund_mode": "-" 
            } 
        } 
    } 
}

Updated 9 days ago