Webhooks are server callbacks to your server from Telr. We send webhooks for three different events for a payment.

  • Payment success webhook
  • Payment failed webhook
  • Payment user dropped webhook

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Webhook signature

Merchant will receive the Webhook signature in the Webhook Header part. Below is a sample header that merchants can expect in the Webhook request.

Header NameHeader Value
content-length1099
x-webhook-attempt1
content-typeapplication/json
x-webhook-signature07r5C3VMwsGYeldGOCYxe5zoHhIN1zLfa8O0U/yngHI=
x-idempotency-keyn9rn7079wqXcse3GEDEXCYle9ajXmU0SUQY8zrUNAlc=
x-webhook-timestamp1746427759733
x-webhook-version2025-01-01
Ensure that the webhook payload is received in raw text format. Converting the webhook into a JSON object can lead to automatic transformation of decimal values—such as the payment_amount—into integers. This alteration (e.g., payment_amount: 170 instead of payment_amount: 170.00) can cause a webhook signature mismatch.

Correct format: payment_amount: 170.00 ✅
Incorrect format: payment_amount: 170 ❌

​
Payment success webhook

A payment success webhook is triggered when a payment is successfully completed. You can use this for: Updating order status, triggering fulfillment, send confirmation to customer.

Version (2025-01-01)
{
"data":{
  "order":{
     "order_id":"order_OFR_2",
     "order_amount":2,
     "order_currency":"INR",
     "order_tags":null
  },
  "payment":{
     "cf_payment_id":"1453002795",
     "payment_status":"SUCCESS",
     "payment_amount":1,
     "payment_currency":"INR",
     "payment_message":"00::Transaction success",
     "payment_time":"2025-01-15T12:20:29+05:30",
     "bank_reference":"234928698581",
     "auth_id":null,
     "payment_method":{
        "upi":{
           "channel":"collect",
           "upi_id":"rishab@ybl",
           "upi_instrument":"UPI_CREDIT_CARD",
           "upi_instrument_number":"masked card number",
           "upi_payer_ifsc":"SBI0025434",
           "upi_payer_account_number":"XXXXX0231"
        }
     },
     "payment_group":"upi",
     "international_payment":{
        "international":false
     },
     "payment_surcharge":{
        "payment_surcharge_service_charge":0.36,
        "payment_surcharge_service_tax":0.06
     }
  },
  "customer_details":{
     "customer_name":null,
     "customer_id":"7112AAA812234",
     "customer_email":"test@gmail.com",
     "customer_phone":"9908734801"
  },
  "payment_gateway_details":{
     "gateway_name":"CASHFREE",
     "gateway_order_id":"1634766330",
     "gateway_payment_id":"1504280029",
     "gateway_order_reference_id":"abc_124",
     "gateway_settlement":"CASHFREE",
     "gateway_status_code":null
  },
  "payment_offers":[
     {
        "offer_id":"0f05e1d0-fbf8-4c9c-a1f0-814c7b2abdba",
        "offer_type":"DISCOUNT",
        "offer_meta":{
           "offer_title":"50% off on UPI",
           "offer_description":"50% off for testing",
           "offer_code":"UPI50",
           "offer_start_time":"2022-11-09T06:23:25.972Z",
           "offer_end_time":"2025-02-27T18:30:00Z"
        },
        "offer_redemption":{
           "redemption_status":"SUCCESS",
           "discount_amount":1,
           "cashback_amount":0
        }
     }
  ],
  "terminal_details":{
    "cf_terminal_id":17269,
    "terminal_phone":"8971520311"
  }
},
"event_time":"2025-01-15T11:16:10+05:30",
"type":"PAYMENT_SUCCESS_WEBHOOK"
}

​
Payment failed webhook

The payment failed webhook notifies you when a payment attempt fails and we receive a failed response from the bank. Use case: Update order status, notify customer, initiate retry flow

Version 2025-01-01
{  
"data": {  
    "order": {  
        "order_id": "CFPay_g47u3888d0k0_tblfm766qc",  
        "order_amount": 1.8,  
        "order_currency": "INR",  
        "order_tags": {  
            "cf_link_id": "13746255"  
        }  
    },  
    "payment": {  
        "cf_payment_id": "1504280029",  
        "payment_status": "FAILED",  
        "payment_amount": 1.8,  
        "payment_currency": "INR",  
        "payment_message": "AMOUNT SHOULD BE WITHIN RANGE BETWEEN 20.00 TO 500000.00.",  
        "payment_time": "2023-01-06T20:00:11+05:30",  
        "bank_reference": "NA",  
        "auth_id": "null",  
        "payment_method": {  
            "netbanking": {  
                "channel": null,  
                "netbanking_bank_code": "3054",  
                "netbanking_bank_name": "UCO Bank"  
            }  
        },  
        "payment_group": "net_banking",
        "international_payment":{
            "international":false
        },
        "payment_surcharge":null
    },  
    "customer_details": {  
        "customer_name": null,  
        "customer_id": null,  
        "customer_email": "test@gmail.com",  
        "customer_phone": "9611199227"  
    },  
    "error_details": {  
        "error_code": "GATEWAY_ERROR",  
        "error_description": "AMOUNT SHOULD BE WITHIN RANGE BETWEEN 20.00 TO 500000.00. for this bank",  
        "error_reason": "invalid_amount",  
        "error_source": "cashfree",
        "error_subcode_raw": "U09"
    },  
    "payment_gateway_details": {
        "gateway_name": "CASHFREE",
        "gateway_order_id": "1634766330",
        "gateway_payment_id": "1504280029",
        "gateway_settlement": "CASHFREE",
        "gateway_status_code": null
    }, 
    "payment_offers": null,
    "terminal_details":{
        "cf_terminal_id":17269,
        "terminal_phone":"8971520311"
    }
},  
"event_time": "2023-08-01T20:00:12+05:30",  
"type": "PAYMENT_FAILED_WEBHOOK"  
}

​
Payment user dropped webhook

The User Dropped Webhook notifies you when your customer abandons the payment flow. It will help you understand if customers attempted to pay or not. Some common scenarios where the transaction will be marked as USER_DROPPED are:

  • User was redirected to the bank’s OTP page, but never entered the OTP.
  • User was redirected to open the UPI app, but never entered the UPI PIN.
  • User was shown the 3ds OTP modal, but did not enter the OTP.
Version 2025-01-01
{
"data": {
"order": {
  "order_id": "order_02",
  "order_amount": 2,
  "order_currency": "INR",
  "order_tags": null
},
"payment": {
  "cf_payment_id": "975672265",
  "payment_status": "USER_DROPPED",
  "payment_amount": 2,
  "payment_currency": "INR",
  "payment_message": "User dropped and did not complete the two factor authentication",
  "payment_time": "2022-05-25T14:25:34+05:30",
  "bank_reference": "1803592531",
  "auth_id": "2980",
  "payment_method": {
    "netbanking": {
      "channel": null,
      "netbanking_bank_code": "3044",
      "netbanking_bank_name": "State Bank Of India"
    }
  },
  "payment_group": "net_banking",
  "international_payment":{
    "international":false
  },
  "payment_surcharge":null
},
"customer_details": {
  "customer_name": null,
  "customer_id": "7112AAA812234",
  "customer_email": "test@gmail.com",
  "customer_phone": "9611199227"
},
"terminal_details":{
  "cf_terminal_id":17269,
  "terminal_phone":"8971520311"
}
},
"event_time": "2022-05-25T14:35:38+05:30",
"type": "PAYMENT_USER_DROPPED_WEBHOOK"
}

​
Sample Payload by Payment Method

The instrument used for making a payment will vary by the payment methods used by the customer. Details of the payload by payment method are documented for reference.

{
  ...,
  "payment_method": {  
    "card": {  
      "channel": null,  
      "card_number": "470613XXXXXX2123",  
      "card_network": "visa",  
      "card_type": "credit_card",  
      "card_sub_type": "C",  
      "card_country": "IN",  
      "card_bank_name": "TEST Bank",
      "card_network_reference_id": "100212023061200000001014824849",
      "instrument_id":"8e9cc167-4fe2-4ece-be8d-c1b224e50a23"
    }  
  },  
  "payment_group": "credit_card",
  ...
}