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Webhooks
Overview
Set up a webhook endpoint to receive real-time notifications for the following Velt events:
Setting up a Webhook
To enable Webhooks go to the Configurations -> Webhook Service in the Velt Console, or click here
Webhook Auth Token
- Optional security feature to authenticate webhook requests.
- Set a unique auth token in your Velt console’s webhook settings.
- We add this token to the Authorization header of each request as
Basic YOUR_AUTH_TOKEN. - Helps you verify that requests are from Velt, not from unauthorized sources.
Endpoint URL
- This is the endpoint that we will send the webhook data to. This is usually hosted on your server.
Payload Encoding
-
Enable Base64 encoding for webhook payloads (disabled by default).
-
Addresses issues with payloads containing HTML tags that may fail due to strict endpoint policies.
-
If enabled, ensure your server can decode Base64 encoded payloads.
-
Example of decoding a Base64 encoded payload:
const encodedData = "eyJ0ZXN0IjoxLCJ0ZXN0MSI6IjxkaXY+PC9kaXY+In0=" const decodedData = Buffer.from(encodedData, 'base64').toString('utf-8'); console.log(JSON.parse(decodedData));
Payload Encryption
- Enable payload encryption for enhanced security (disabled by default).
- Configure this option in the Velt Console.
- Encryption details:
- Payload encryption: AES-256-CBC
- Key encryption: RSA with PKCS1 OAEP padding and SHA-256 hash
- Public key format:
- Provide only the base64-encoded key string, without PEM headers/footers
- Recommended key size: 2048 bits
- Example of setting up decryption for Node.js:
{
"encryptedData": "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",
"encryptedKey": "OzSHFXzrXFC5wDvM5NPRkriY/NaC/USvFUPE+f4NZ30tiD2qb8sJM2XT2K7uNIZ05uDLfsJ6/BbEoYC1SOPXcFJMYqRiYFiI9RWrNgR4EtPWZ84RgrmxGcZZjzSqHzjuls8g++cuqJGRV+ePbTRH+z2OuZZu0vMKZiemaZpHL46Ewi9HUnbRDXvOlKFFHmQm5tayZ7m7Mv5iu4T5R3DPEAHlZnGqtP98ToLxUJUS2Eku/iLHXRmhmZXn55Qt5GYiyss8P5/miPqJCu1QG0CStn5Nsl4KvU+I4QYAOcMFWWUAGofOwPWtt8vPh8Bx+7t7BbayKpA4ZUEWWAjC+zASxg==",
"iv": "SHM0UHU5WXoyTG03TnExWA=="
}
{
"encryptedData": "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",
"encryptedKey": "OzSHFXzrXFC5wDvM5NPRkriY/NaC/USvFUPE+f4NZ30tiD2qb8sJM2XT2K7uNIZ05uDLfsJ6/BbEoYC1SOPXcFJMYqRiYFiI9RWrNgR4EtPWZ84RgrmxGcZZjzSqHzjuls8g++cuqJGRV+ePbTRH+z2OuZZu0vMKZiemaZpHL46Ewi9HUnbRDXvOlKFFHmQm5tayZ7m7Mv5iu4T5R3DPEAHlZnGqtP98ToLxUJUS2Eku/iLHXRmhmZXn55Qt5GYiyss8P5/miPqJCu1QG0CStn5Nsl4KvU+I4QYAOcMFWWUAGofOwPWtt8vPh8Bx+7t7BbayKpA4ZUEWWAjC+zASxg==",
"iv": "SHM0UHU5WXoyTG03TnExWA=="
}
const crypto = require('crypto');
/**
* Decrypts the symmetric key using the provided private key.
* @param {string} encryptedKey - Base64 encoded encrypted symmetric key
* @param {string} privateKey - RSA private key
* @returns {Buffer} Decrypted symmetric key
*/
function decryptSymmetricKey(encryptedKey, privateKey) {
try {
const encryptedSymmetricKey = Buffer.from(encryptedKey, 'base64');
const decryptedSymmetricKey = crypto.privateDecrypt(
{
key: `-----BEGIN RSA PRIVATE KEY-----\n${privateKey}\n-----END RSA PRIVATE KEY-----`,
padding: crypto.constants.RSA_PKCS1_OAEP_PADDING,
oaepHash: 'sha256',
},
encryptedSymmetricKey
);
return decryptedSymmetricKey;
} catch (error) {
console.error('Error decrypting symmetric key:', error);
throw new Error('Failed to decrypt symmetric key');
}
}
/**
* Decrypts the webhook data using the provided symmetric key and IV.
* @param {string} encryptedWebhookData - Base64 encoded encrypted webhook data
* @param {Buffer} symmetricKey - Decrypted symmetric key
* @param {string} payloadIv - Base64 encoded initialization vector
* @returns {Object} Decrypted webhook data as a JSON object
*/
function decryptWebhookData(encryptedWebhookData, symmetricKey, payloadIv) {
try {
const iv = Buffer.from(payloadIv, 'base64');
const decipher = crypto.createDecipheriv('aes-256-cbc', symmetricKey, iv);
let decryptedData = decipher.update(encryptedWebhookData, 'base64', 'utf8');
decryptedData += decipher.final('utf8');
return JSON.parse(decryptedData);
} catch (error) {
console.error('Error decrypting webhook data:', error);
throw new Error('Failed to decrypt webhook data');
}
}
// Example usage:
// const decryptedKey = decryptSymmetricKey(encryptedKey, privateKey);
// const decryptedData = decryptWebhookData(encryptedWebhookData, decryptedKey, payloadIv);
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