Incident Service Webhook

Telr will notify you whenever we create an incident at our end. An incident implies that the issuing bank is facing high failure rates or has scheduled a maintenance activity during that time. The former could be due to many reasons and until the failure rates go down, we would recommend customers to use alternative payment instruments.

There are two channels through which we notify. You can subscribe to either of the channels by adding your email address and webhook endpoint in the merchant dashboard. Email - Telr will send an email alert when an issuer is facing downtime or a scheduled incident. Webhooks - Telr will invoke a server to server call whenever an incident is created. You can use this webhook and update your payment page accordingly.

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Webhook Schema of Incident Service Webhook

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Sample Payload for Creation of Incident

{
  "data": {
    "incident": {
      "end_time": "2025-04-29T09:11:48+05:30",
      "id": "x77rkd7phl5dobr94k1s",
      "impact": "HIGH",
      "message": "Payment mode up",
      "start_time": "2025-04-22T09:11:48+05:30",
      "status": "RESOLVED",
      "type": "SCHEDULED"
    },
    "instruments": {
      "upi": {
        "issuers": [
          "DEUTSCHE BANK"
        ]
      }
    }
  },
  "event_time": "2025-04-22T14:42:08+05:30",
  "type": "HEALTH_ALERT"
}

{
  "data": {
    "incident": {
      "end_time": "2025-04-29T09:11:48+05:30",
      "id": "x77rkd7phl5dobr94k1s",
      "impact": "HIGH",
      "message": "Payment mode up",
      "start_time": "2025-04-22T09:11:48+05:30",
      "status": "RESOLVED",
      "type": "SCHEDULED"
    },
    "instruments": {
      "upi": {
        "issuers": [
          "DEUTSCHE BANK"
        ]
      }
    }
  },
  "event_time": "2025-04-22T14:42:08+05:30",
  "type": "HEALTH_ALERT"
}

{
  "data": {
    "incident": {
      "end_time": "2025-04-29T09:11:48+05:30",
      "id": "x77rkd7phl5dobr94k1s",
      "impact": "HIGH",
      "message": "Payment mode up",
      "start_time": "2025-04-22T09:11:48+05:30",
      "status": "RESOLVED",
      "type": "SCHEDULED"
    },
    "instruments": {
      "upi": {
        "issuers": [
          "DEUTSCHE BANK"
        ]
      }
    }
  },
  "event_time": "2025-04-22T14:42:08+05:30",
  "type": "HEALTH_ALERT"
}

​

Sample Payload When Incident is Resolved

{
    "data": {
      "incident": {
        "end_time": "2025-04-29T09:11:48+05:30",
        "id": "x77rkd7phl5dobr94k1s",
        "impact": "HIGH",
        "message": "Payment mode up",
        "start_time": "2025-04-22T09:11:48+05:30",
        "status": "RESOLVED",
        "type": "SCHEDULED"
      },
      "instruments": {
        "upi": {
          "issuers": [
            "DEUTSCHE BANK"
          ]
        }
      }
    },
    "event_time": "2025-04-22T14:42:08+05:30",
    "type": "HEALTH_ALERT"
}

{
    "data": {
      "incident": {
        "end_time": "2025-04-29T09:11:48+05:30",
        "id": "x77rkd7phl5dobr94k1s",
        "impact": "HIGH",
        "message": "Payment mode up",
        "start_time": "2025-04-22T09:11:48+05:30",
        "status": "RESOLVED",
        "type": "SCHEDULED"
      },
      "instruments": {
        "upi": {
          "issuers": [
            "DEUTSCHE BANK"
          ]
        }
      }
    },
    "event_time": "2025-04-22T14:42:08+05:30",
    "type": "HEALTH_ALERT"
}

{
    "data": {
      "incident": {
        "end_time": "2025-04-29T09:11:48+05:30",
        "id": "x77rkd7phl5dobr94k1s",
        "impact": "HIGH",
        "message": "Payment mode up",
        "start_time": "2025-04-22T09:11:48+05:30",
        "status": "RESOLVED",
        "type": "SCHEDULED"
      },
      "instruments": {
        "upi": {
          "issuers": [
            "DEUTSCHE BANK"
          ]
        }
      }
    },
    "event_time": "2025-04-22T14:42:08+05:30",
    "type": "HEALTH_ALERT"
}

​

Payload

At least one of the children needs to be present

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Wallet

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Net Banking

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UPI

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Card

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Payload Headers

Telr will send two custom headers for every webhook being invoked by our system.

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Signature Generation

The signature must be used to verify if the request has not been tampered with. To verify the signature at your end, you will need your Telr Payment Gateway secret key along with the payload.

//The payload here refers to the raw request sent by 
Telr to your endpoint. No modifications need to be 
done to this payload.

payload := {"data":{"bank_name":"Test Bank",
"card_type":"Visa","health":"DEGRADED",
"incident_end_time":"2021-04-07T00:20:30",
"incident_id":"INCIDENT_HIGH_Test Bank_954b95zz-f11a-test-abcd-0eb0e8608847",
"incident_impact":"High",
"incident_start_time":"2021-04-06T00:20",
"incident_type":"Scheduled",
"is_resolved":false,
"issuers":[],
"message":"We are facing high failure issues in Payment gateway at the moment and will keep you updated about the issue.",
"payment_gateway":null,"payment_mode":"DEBIT_CARD",
"scope":"PaymentMode"},
"type":"HEALTH_ALERT","version":1}

# timestamp is present in the header x-cashfree-timestamp
timestamp := 1617695238078

signedPayload := $timestamp.$payload

expectedSignature := Base64Encode(HMACSHA256($signedPayload, $merchantSecretKey))

​

Bank Names

• Axis Bank
• Bank of Baroda - Retail Banking
• Bank of India
• Bank of Maharashtra
• Canara Bank
• Catholic Syrian Bank
• Central Bank of India
• City Union Bank
• Deutsche Bank
• DBS Bank Ltd
• DCB Bank - Personal
• Dhanlakshmi Bank
• Federal Bank
• HDFC Bank
• ICICI Bank
• IDBI Bank
• IDFC Bank
• Indian Bank
• Indian Overseas Bank
• IndusInd Bank
• Jammu and Kashmir Bank
• Karnataka Bank Ltd
• Karur Vysya Bank
• Kotak Mahindra Bank
• Laxmi Vilas Bank - Retail Net Banking
• Punjab & Sind Bank
• Punjab National Bank - Retail Net Banking
• RBL Bank
• Saraswat Bank
• South Indian Bank
• Standard Chartered Bank
• State Bank Of India
• Tamilnad Mercantile Bank Ltd
• UCO Bank
• Union Bank of India
• Yes Bank Ltd
• Bank of Baroda - Corporate
• Bank of India - Corporate
• DCB Bank - Corporate
• Lakshmi Vilas Bank - Corporate
• Punjab National Bank - Corporate
• State Bank of India - Corporate
• Union Bank of India - Corporate
• Axis Bank Corporate
• Dhanlaxmi Bank Corporate
• ICICI Corporate Netbanking
• Ratnakar Corporate Banking
• Shamrao Vithal Bank Corporate
• Equitas Small Finance Bank
• Yes Bank Corporate
• Bandhan Bank- Corporate banking
• Barclays Corporate- Corporate Banking - Corporate
• Indian Overseas Bank Corporate
• City Union Bank of Corporate
• HDFC Corporate
• Shivalik Bank
• AU Small Finance
• Bandhan Bank - Retail Net Banking
• Shamrao Vitthal Co-operative Bank
• Tamil Nadu State Co-operative Bank

All Banks (Note: This parameter will be sent when all banks are having a downtime)

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Wallet Names

• FreeCharge
• MobiKwik
• Ola Money
• Reliance Jio Money
• Airtel Money
• Paytm
• Amazon Pay
• PhonePe

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Compute Signature and Verify

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Sample Code

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Verify Signature using SDK

var express = require('express')
import { Telr } from "cashfree-pg"; 
var app = express()

Cashfree.XClientId = "<x-client-id>";
Cashfree.XClientSecret = "<x-client-secret>";
Cashfree.XEnvironment = Cashfree.Environment.SANDBOX;

app.post('/webhook', function (req, res) {
    try {
        Telr.PGVerifyWebhookSignature(req.headers["x-webhook-signature"], req.rawBody, req.headers["x-webhook-timestamp"]))
    } catch (err) {
        console.log(err.message)
    }
})

​

Compute Signature and Verify manually

function verify(ts, rawBody){
    const body = req.headers["x-webhook-timestamp"] + req.rawBody;
    const secretKey = "<your secret key>";
    let genSignature = crypto.createHmac('sha256',secretKey).update(body).digest("base64");
    return genSignature
}