Receive transaction history report via webhook

curl --location 'https://api.staging.bvnk.com/ledger/v1/reports' \
--header 'Content-Type: application/json' \
--header 'Authorization: ••••••' \
--data '{
    "from": "2024-10-01T00:00:01",
    "to": "2024-11-29T23:59:59",
    "format": "CSV",
    "deliveryChannel": "WEBHOOK",
    "type": "TRANSACTION",
    "walletId":"a:24091341375337:qAOMdpM:1"
}'

{
  "event": "reportCreated",
  "data": {
    "url": "https://coindirect-filestore.s3.amazonaws.com/com.bvnk.reports.BackgroundReport/b9ee2544-b838-4c37-9051-3974c4d19fef.csv?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGAaCWV1LXdlc3QtMSJHMEUCIQChnP0FdjPn0tJ8HMz%2BsKwRgHwvqKO8shW1Fs1R57FfuwIgYHtQLOrJoY2WiKHO3SmAAcVHUqptlzakFz6XM9tkkSMqkwUIqf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwzODU0ODUwMzkxMTEiDAxHTlmQuRKIa3%2FGMSrnBDRX%2BpF1M9F%2FKDbtH3mxQvG1nORC%2BTcxgrNnTFmYcjpr%2BLFpa22PnVrbPXFEaMnsCzySRqgi%2FBz4QNUAZdGvvDZswQFh53a2pC5gmQN3xWd1pzfzkeOaZwVgbyaq1dsTteLQhZdI9lzJG7ceXaLyHWw23P%2B3JocLJKqRp0ugdc3Ksj3RhtgerqxRx80mToq98xB7ndjhoWyVTALQ4Bk7dpBEzoF8ZpQ8zC46uJufwmazn8tZDJK%2Fg603djWfMfCR53lpenLtIxxWD0Feph2IoI5arn2XF%2BZqCg2j8kWAriMYyfOohG1SLcHzjozscsCWNlZgsFJBCypiZltnnUGbPLhUjtodW6a8F7Oib6yB5wEIGcVcvUj1obq%2FL7%2FN78wHaRH5PlzcD%2F9Z%2BoqBPwu%2BKSgl8QTNp%2FG8cO8KwXvm4Gq6%2Fix%2FZMKsfLjPWQ%2BCeZTfm8t9WBFPd5Var89rfZIr26pz5R8XAtIMmVqY8mbLZeDKVem5DwVt1fwBlDb%2BKC9cdduWLfuAFh6kRTG744d71XCetYTw8TUMdZ7emcVHk%2BjHC8qHqwE1bYsG0DAoXJ%2BARW6xwqAxID%2FjkmhJ8Nn%2B07UBtHU6UPhHhCpBLYCu%2B75%2BLwkoqOUWQsm9CJ7ePpDaMT%2B9ovmnolv%2BuRoIhfcKhx3aZSLm2uhrF%2FL4AcdXS%2BNitALmNL5c8F6RX6esQzpuksmLHxq8aFTfz1vEgbklG%2BTES9bsYF8B8vV%2FSNz6VyRohQGGxgEKTgj2%2Bxmr35HpeO86jbz6EU3qHtCF662TCRBlXgnqkQqjzyNVzYrKAu86NFrwIinemjCs9amxBjqbAaIBk%2BWvSyb%2FTVqBq%2FPJSgDaMlmDsWvFMDgY4XcSHx1XuIpTrZxHDErObDG2oHG2VacFUtQw2aeK8OEig94pWd%2B9QhtBiMjbu0LX4IJhX7vNFZ%2BMKC4U7wQJ0lu3SbYwHFNQWWkx07ajTN24DruGQkrbgG%2BzG6u1WoXnr35cUrR0fJUnhqcb0ILVBA7gDpgoW1Xyiz7Bg0mnIKjb&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20240425T155243Z&X-Amz-SignedHeaders=host&X-Amz-Expires=86394&X-Amz-Credential=ASIAVTQFS4YDTMPXPNXR%2F20240425%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=872cc212faa8676dcb492f195ddfd9de054e7cf2024165f0d795f9c5b56e9600"
  }
}

import org.apache.commons.codec.digest.HmacAlgorithms;
import org.apache.commons.codec.digest.HmacUtils;

import java.net.URI;
import java.net.URISyntaxException;


/**
 * This is a utility class used for validating webhooks from the Crypto Payments product.
 * It provides a way to verify the authenticity of the incoming webhook request.
 */
public class Main {

    /**
     * This is the main method which drives the process of webhook validation.
     * @param args Unused.
     * @throws URISyntaxException If the provided webhook URL is malformed.
     */
    public static void main(String[] args) throws URISyntaxException {
        //EXAMPLE TEST DATA
        /* Secret key that can be found under Settings -> Manage Merchants -> Merchant Name
        in your BVNK merchant account
        */
        String secretKey = "LWExNWYtYjRjYzJiZjRmZGZhNDU5NmFjNWMtYjhmNS00OTFhLWE0YTAtMWUwZjU5YjAwZjJk";

        /* Webhook URL that you've set under Settings -> Manage Merchants -> Webhook URL */
        String webhookUrl = "https://webhook.site/23dcv4a41-d4935-4e16-9ed6-ce812f7bddcd8";

        /* Content-Type needed for concatenating the values */
        String contentType = "application/json";

        /* Body of the webhook. Make sure the webhook payload is escaped correctly with no whitespaces*/
        String payload = "{\"event\":\"statusChanged\",\"url\":\"https://coindirect-filestore.s3.amazonaws.com/com.bvnk.reports.BackgroundReport/b9ee2544-b838-4c37-9051-3974c4d19fef.csv?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGAaCWV1LXdlc3QtMSJHMEUCIQChnP0FdjPn0tJ8HMz%2BsKwRgHwvqKO8shW1Fs1R57FfuwIgYHtQLOrJoY2WiKHO3SmAAcVHUqptlzakFz6XM9tkkSMqkwUIqf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwzODU0ODUwMzkxMTEiDAxHTlmQuRKIa3%2FGMSrnBDRX%2BpF1M9F%2FKDbtH3mxQvG1nORC%2BTcxgrNnTFmYcjpr%2BLFpa22PnVrbPXFEaMnsCzySRqgi%2FBz4QNUAZdGvvDZswQFh53a2pC5gmQN3xWd1pzfzkeOaZwVgbyaq1dsTteLQhZdI9lzJG7ceXaLyHWw23P%2B3JocLJKqRp0ugdc3Ksj3RhtgerqxRx80mToq98xB7ndjhoWyVTALQ4Bk7dpBEzoF8ZpQ8zC46uJufwmazn8tZDJK%2Fg603djWfMfCR53lpenLtIxxWD0Feph2IoI5arn2XF%2BZqCg2j8kWAriMYyfOohG1SLcHzjozscsCWNlZgsFJBCypiZltnnUGbPLhUjtodW6a8F7Oib6yB5wEIGcVcvUj1obq%2FL7%2FN78wHaRH5PlzcD%2F9Z%2BoqBPwu%2BKSgl8QTNp%2FG8cO8KwXvm4Gq6%2Fix%2FZMKsfLjPWQ%2BCeZTfm8t9WBFPd5Var89rfZIr26pz5R8XAtIMmVqY8mbLZeDKVem5DwVt1fwBlDb%2BKC9cdduWLfuAFh6kRTG744d71XCetYTw8TUMdZ7emcVHk%2BjHC8qHqwE1bYsG0DAoXJ%2BARW6xwqAxID%2FjkmhJ8Nn%2B07UBtHU6UPhHhCpBLYCu%2B75%2BLwkoqOUWQsm9CJ7ePpDaMT%2B9ovmnolv%2BuRoIhfcKhx3aZSLm2uhrF%2FL4AcdXS%2BNitALmNL5c8F6RX6esQzpuksmLHxq8aFTfz1vEgbklG%2BTES9bsYF8B8vV%2FSNz6VyRohQGGxgEKTgj2%2Bxmr35HpeO86jbz6EU3qHtCF662TCRBlXgnqkQqjzyNVzYrKAu86NFrwIinemjCs9amxBjqbAaIBk%2BWvSyb%2FTVqBq%2FPJSgDaMlmDsWvFMDgY4XcSHx1XuIpTrZxHDErObDG2oHG2VacFUtQw2aeK8OEig94pWd%2B9QhtBiMjbu0LX4IJhX7vNFZ%2BMKC4U7wQJ0lu3SbYwHFNQWWkx07ajTN24DruGQkrbgG%2BzG6u1WoXnr35cUrR0fJUnhqcb0ILVBA7gDpgoW1Xyiz7Bg0mnIKjb&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20240425T155243Z&X-Amz-SignedHeaders=host&X-Amz-Expires=86394&X-Amz-Credential=ASIAVTQFS4YDTMPXPNXR%2F20240425%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=872cc212faa8676dcb492f195ddfd9de054e7cf2024165f0d795f9c5b56e9600\"}";

        // Concatenate the webhook URL, Content-Type, and payload
        String hashBody = getBodyToHash(webhookUrl, contentType, payload);

        // Generate the signature
        String signature = generateSignature(secretKey, hashBody);

        // Output the signature
        System.out.println("Generated signature: " + signature);
    }

    /**
     * This method creates a concatenated string from the provided webhook URL, content type, and payload.
     * @param webhookUrl The URL where the webhook will be sent.
     * @param contentType The MIME type of the content.
     * @param payload The actual content body of the webhook.
     * @return A concatenated string of the provided parameters.
     * @throws URISyntaxException If the provided webhook URL is malformed.
     */
    public static String getBodyToHash(String webhookUrl, String contentType, String payload) throws URISyntaxException {
        URI uri = new URI(webhookUrl);
        StringBuilder hashBody = new StringBuilder();
        hashBody.append(uri.getPath());
        if (uri.getRawQuery() != null) {
            hashBody.append(uri.getRawQuery());
        }
        if (contentType != null) {
            hashBody.append(contentType);
        }
        if (payload != null) {
            hashBody.append(payload);
        }

        return hashBody.toString();
    }

    /**
     * This method generates a signature from the provided secret and the hashed body.
     * It uses the HMAC-SHA256 hashing algorithm.
     * @param secret The secret key used to generate the hash.
     * @param hashBody The body that needs to be hashed.
     * @return The HMAC-SHA256 hash of the body, encoded as a hexadecimal string.
     */
    public static String generateSignature(final String secret, String hashBody) {
        return toHex(new HmacUtils(HmacAlgorithms.HMAC_SHA_256, secret).hmac(hashBody));
    }

    /**
     * This is a helper method that converts a byte array to a hexadecimal string.
     * @param bytes The byte array that needs to be converted.
     * @return The hexadecimal representation of the byte array.
     */
    static String toHex(byte[] bytes) {
        StringBuilder sb = new StringBuilder();
        for (byte b : bytes) {
            sb.append(String.format("%02x", b));
        }
        return sb.toString();
    }
}

import hashlib
import hmac
import urllib.parse

def get_body_to_hash(webhook_url, content_type, payload):
    """
    This method creates a concatenated string from the provided webhook URL, content type, and payload.
    :param webhook_url: The URL where the webhook will be sent.
    :param content_type: The MIME type of the content.
    :param payload: The actual content body of the webhook.
    :return: A concatenated string of the provided parameters.
    """
    request_url = urllib.parse.urlparse(webhook_url)
    body_to_hash = f"{request_url.path}{content_type}{payload}"
    return body_to_hash

def generate_signature(secret_key, hash_body):
    """
    This method generates a signature from the provided secret and the hashed body.
    It uses the HMAC-SHA256 hashing algorithm.
    :param secret_key: The secret key used to generate the hash.
    :param hash_body: The body that needs to be hashed.
    :return: The HMAC-SHA256 hash of the body, encoded as a hexadecimal string.
    """
    hashed = hmac.new(secret_key.encode(), hash_body.encode(), hashlib.sha256)
    return hashed.hexdigest()

def validate_webhook():
    """
    This function prints out the signature from inputs.
    """
    # Secret key that can be found under Settings -> Manage Merchants -> Merchant Name in your BVNK merchant account
    secret_key = 'YTczZmM5YTEtZDFhNi00YWU5LTk4ODktMmEzODI1NzBkMDI2ZWFjNDcwNzgtNTRkYi00OTY0LWI5NjAtMzRmOTQ0ZTE5NDQ3'

    # Webhook URL that you've set under Settings -> Manage Merchants -> Webhook URL
    webhook_url = 'https://webhook.site/11488aba-735e-4906-9809-f1a11a91f49f'

    # Content-Type needed for concatenating the values
    content_type = 'application/json'

    # Body of the webhook.
    payload = '{"event":"reportGenerated","url":"https://coindirect-filestore.s3.amazonaws.com/com.bvnk.reports.BackgroundReport/b9ee2544-b838-4c37-9051-3974c4d19fef.csv?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGAaCWV1LXdlc3QtMSJHMEUCIQChnP0FdjPn0tJ8HMz%2BsKwRgHwvqKO8shW1Fs1R57FfuwIgYHtQLOrJoY2WiKHO3SmAAcVHUqptlzakFz6XM9tkkSMqkwUIqf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwzODU0ODUwMzkxMTEiDAxHTlmQuRKIa3%2FGMSrnBDRX%2BpF1M9F%2FKDbtH3mxQvG1nORC%2BTcxgrNnTFmYcjpr%2BLFpa22PnVrbPXFEaMnsCzySRqgi%2FBz4QNUAZdGvvDZswQFh53a2pC5gmQN3xWd1pzfzkeOaZwVgbyaq1dsTteLQhZdI9lzJG7ceXaLyHWw23P%2B3JocLJKqRp0ugdc3Ksj3RhtgerqxRx80mToq98xB7ndjhoWyVTALQ4Bk7dpBEzoF8ZpQ8zC46uJufwmazn8tZDJK%2Fg603djWfMfCR53lpenLtIxxWD0Feph2IoI5arn2XF%2BZqCg2j8kWAriMYyfOohG1SLcHzjozscsCWNlZgsFJBCypiZltnnUGbPLhUjtodW6a8F7Oib6yB5wEIGcVcvUj1obq%2FL7%2FN78wHaRH5PlzcD%2F9Z%2BoqBPwu%2BKSgl8QTNp%2FG8cO8KwXvm4Gq6%2Fix%2FZMKsfLjPWQ%2BCeZTfm8t9WBFPd5Var89rfZIr26pz5R8XAtIMmVqY8mbLZeDKVem5DwVt1fwBlDb%2BKC9cdduWLfuAFh6kRTG744d71XCetYTw8TUMdZ7emcVHk%2BjHC8qHqwE1bYsG0DAoXJ%2BARW6xwqAxID%2FjkmhJ8Nn%2B07UBtHU6UPhHhCpBLYCu%2B75%2BLwkoqOUWQsm9CJ7ePpDaMT%2B9ovmnolv%2BuRoIhfcKhx3aZSLm2uhrF%2FL4AcdXS%2BNitALmNL5c8F6RX6esQzpuksmLHxq8aFTfz1vEgbklG%2BTES9bsYF8B8vV%2FSNz6VyRohQGGxgEKTgj2%2Bxmr35HpeO86jbz6EU3qHtCF662TCRBlXgnqkQqjzyNVzYrKAu86NFrwIinemjCs9amxBjqbAaIBk%2BWvSyb%2FTVqBq%2FPJSgDaMlmDsWvFMDgY4XcSHx1XuIpTrZxHDErObDG2oHG2VacFUtQw2aeK8OEig94pWd%2B9QhtBiMjbu0LX4IJhX7vNFZ%2BMKC4U7wQJ0lu3SbYwHFNQWWkx07ajTN24DruGQkrbgG%2BzG6u1WoXnr35cUrR0fJUnhqcb0ILVBA7gDpgoW1Xyiz7Bg0mnIKjb&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20240425T155243Z&X-Amz-SignedHeaders=host&X-Amz-Expires=86394&X-Amz-Credential=ASIAVTQFS4YDTMPXPNXR%2F20240425%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=872cc212faa8676dcb492f195ddfd9de054e7cf2024165f0d795f9c5b56e9600"'

    # Concatenate the webhook URL, Content-Type, and payload
    hash_body = get_body_to_hash(webhook_url, content_type, payload)

    # Generate the signature
    signature = generate_signature(secret_key, hash_body)

    # Output the signature
    print(f"Generated signature: {signature}")

validate_webhook()

<?php

/**
 * This method creates a concatenated string from the provided webhook URL, content type, and payload.
 * @param string $webhookUrl The URL where the webhook will be sent.
 * @param string $contentType The MIME type of the content.
 * @param string $payload The actual content body of the webhook.
 * @return string A concatenated string of the provided parameters.
 */
function getBodyToHash($webhookUrl, $contentType, $payload) {
  $requestURL = parse_url($webhookUrl);
  $bodyToHash = $requestURL['path'] . $contentType . $payload;
  

  return $bodyToHash;
}

/**
 * This method generates a signature from the provided secret and the hashed body.
 * It uses the HMAC-SHA256 hashing algorithm.
 * @param string $secret The secret key used to generate the hash.
 * @param string $hashBody The body that needs to be hashed.
 * @return string The HMAC-SHA256 hash of the body, encoded as a hexadecimal string.
 */
function generateSignature($secretKey, $hashBody) {
  $hash = hash_hmac('sha256', $hashBody, $secretKey);

  return $hash;
}

/**
 * This function prints out the signature from inputs.
 */
function validateWebhook() {
  // EXAMPLE TEST DATA
  $secretKey = 'YTczZmM5YTEtZDFhNi00YWU5LTk4ODktMmEzODI1NzBkMDI2ZWFjNDcwNzgtNTRkYi00OTY0LWI5NjAtMzRmOTQ0ZTE5NDQ3';
  $webhookUrl = 'https://webhook.site/11488aba-735e-4906-9809-f1a11a91f49f';
  $contentType = 'application/json';
  $payload = '{"event":"reportGenerated","url":"https://coindirect-filestore.s3.amazonaws.com/com.bvnk.reports.BackgroundReport/b9ee2544-b838-4c37-9051-3974c4d19fef.csv?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGAaCWV1LXdlc3QtMSJHMEUCIQChnP0FdjPn0tJ8HMz%2BsKwRgHwvqKO8shW1Fs1R57FfuwIgYHtQLOrJoY2WiKHO3SmAAcVHUqptlzakFz6XM9tkkSMqkwUIqf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwzODU0ODUwMzkxMTEiDAxHTlmQuRKIa3%2FGMSrnBDRX%2BpF1M9F%2FKDbtH3mxQvG1nORC%2BTcxgrNnTFmYcjpr%2BLFpa22PnVrbPXFEaMnsCzySRqgi%2FBz4QNUAZdGvvDZswQFh53a2pC5gmQN3xWd1pzfzkeOaZwVgbyaq1dsTteLQhZdI9lzJG7ceXaLyHWw23P%2B3JocLJKqRp0ugdc3Ksj3RhtgerqxRx80mToq98xB7ndjhoWyVTALQ4Bk7dpBEzoF8ZpQ8zC46uJufwmazn8tZDJK%2Fg603djWfMfCR53lpenLtIxxWD0Feph2IoI5arn2XF%2BZqCg2j8kWAriMYyfOohG1SLcHzjozscsCWNlZgsFJBCypiZltnnUGbPLhUjtodW6a8F7Oib6yB5wEIGcVcvUj1obq%2FL7%2FN78wHaRH5PlzcD%2F9Z%2BoqBPwu%2BKSgl8QTNp%2FG8cO8KwXvm4Gq6%2Fix%2FZMKsfLjPWQ%2BCeZTfm8t9WBFPd5Var89rfZIr26pz5R8XAtIMmVqY8mbLZeDKVem5DwVt1fwBlDb%2BKC9cdduWLfuAFh6kRTG744d71XCetYTw8TUMdZ7emcVHk%2BjHC8qHqwE1bYsG0DAoXJ%2BARW6xwqAxID%2FjkmhJ8Nn%2B07UBtHU6UPhHhCpBLYCu%2B75%2BLwkoqOUWQsm9CJ7ePpDaMT%2B9ovmnolv%2BuRoIhfcKhx3aZSLm2uhrF%2FL4AcdXS%2BNitALmNL5c8F6RX6esQzpuksmLHxq8aFTfz1vEgbklG%2BTES9bsYF8B8vV%2FSNz6VyRohQGGxgEKTgj2%2Bxmr35HpeO86jbz6EU3qHtCF662TCRBlXgnqkQqjzyNVzYrKAu86NFrwIinemjCs9amxBjqbAaIBk%2BWvSyb%2FTVqBq%2FPJSgDaMlmDsWvFMDgY4XcSHx1XuIpTrZxHDErObDG2oHG2VacFUtQw2aeK8OEig94pWd%2B9QhtBiMjbu0LX4IJhX7vNFZ%2BMKC4U7wQJ0lu3SbYwHFNQWWkx07ajTN24DruGQkrbgG%2BzG6u1WoXnr35cUrR0fJUnhqcb0ILVBA7gDpgoW1Xyiz7Bg0mnIKjb&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20240425T155243Z&X-Amz-SignedHeaders=host&X-Amz-Expires=86394&X-Amz-Credential=ASIAVTQFS4YDTMPXPNXR%2F20240425%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=872cc212faa8676dcb492f195ddfd9de054e7cf2024165f0d795f9c5b56e9600"}';

  // Concatenate the webhook URL, Content-Type, and payload
  $hashBody = getBodyToHash($webhookUrl, $contentType, $payload);

  // Generate the signature
  $signature = generateSignature($secretKey, $hashBody);

  // Output the signature
  echo "Generated signature: " . $signature;
}

validateWebhook();

?>

const CryptoJS = require("crypto-js");

/**
 * This method creates a concatenated string from the provided webhook URL, content type, and payload.
 * @param webhookUrl The URL where the webhook will be sent.
 * @param contentType The MIME type of the content.
 * @param payload The actual content body of the webhook.
 * @return A concatenated string of the provided parameters.
 */
function getBodyToHash(webhookUrl, contentType, payload) {
  const requestURL = new URL(webhookUrl);
  const bodyToHash = `${requestURL.pathname}${contentType}${payload}`;

  return bodyToHash;
}

/**
 * This method generates a signature from the provided secret and the hashed body.
 * It uses the HMAC-SHA256 hashing algorithm.
 * @param secret The secret key used to generate the hash.
 * @param hashBody The body that needs to be hashed.
 * @return The HMAC-SHA256 hash of the body, encoded as a hexadecimal string.
 */
function generateSignature(secretKey, hashBody) {
    const hasher = CryptoJS.HmacSHA256(hashBody, secretKey);
    const hashInHex = CryptoJS.enc.Hex.stringify(hasher);
  
    return hashInHex;
}

/**
 * This function prints out the signature from inputs.
 */
function validateWebhook(){
  // EXAMPLE TEST DATA
  // Secret key that can be found under Settings -> Manage Merchants -> Merchant Name in your BVNK merchant account
  const secretKey = 'YTczZmM5YTEtZDFhNi00YWU5LTk4ODktMmEzODI1NzBkMDI2ZWFjNDcwNzgtNTRkYi00OTY0LWI5NjAtMzRmOTQ0ZTE5NDQ3';

  // Webhook URL that you've set under Settings -> Manage Merchants -> Webhook URL
  const webhookUrl = 'https://webhook.site/11488aba-735e-4906-9809-f1a11a91f49f';

  // Content-Type needed for concatenating the values
  const contentType = 'application/json';

  // Body of the webhook.
  const payload = '{"event":"reportGenerated","url":"https://coindirect-filestore.s3.amazonaws.com/com.bvnk.reports.BackgroundReport/b9ee2544-b838-4c37-9051-3974c4d19fef.csv?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGAaCWV1LXdlc3QtMSJHMEUCIQChnP0FdjPn0tJ8HMz%2BsKwRgHwvqKO8shW1Fs1R57FfuwIgYHtQLOrJoY2WiKHO3SmAAcVHUqptlzakFz6XM9tkkSMqkwUIqf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwzODU0ODUwMzkxMTEiDAxHTlmQuRKIa3%2FGMSrnBDRX%2BpF1M9F%2FKDbtH3mxQvG1nORC%2BTcxgrNnTFmYcjpr%2BLFpa22PnVrbPXFEaMnsCzySRqgi%2FBz4QNUAZdGvvDZswQFh53a2pC5gmQN3xWd1pzfzkeOaZwVgbyaq1dsTteLQhZdI9lzJG7ceXaLyHWw23P%2B3JocLJKqRp0ugdc3Ksj3RhtgerqxRx80mToq98xB7ndjhoWyVTALQ4Bk7dpBEzoF8ZpQ8zC46uJufwmazn8tZDJK%2Fg603djWfMfCR53lpenLtIxxWD0Feph2IoI5arn2XF%2BZqCg2j8kWAriMYyfOohG1SLcHzjozscsCWNlZgsFJBCypiZltnnUGbPLhUjtodW6a8F7Oib6yB5wEIGcVcvUj1obq%2FL7%2FN78wHaRH5PlzcD%2F9Z%2BoqBPwu%2BKSgl8QTNp%2FG8cO8KwXvm4Gq6%2Fix%2FZMKsfLjPWQ%2BCeZTfm8t9WBFPd5Var89rfZIr26pz5R8XAtIMmVqY8mbLZeDKVem5DwVt1fwBlDb%2BKC9cdduWLfuAFh6kRTG744d71XCetYTw8TUMdZ7emcVHk%2BjHC8qHqwE1bYsG0DAoXJ%2BARW6xwqAxID%2FjkmhJ8Nn%2B07UBtHU6UPhHhCpBLYCu%2B75%2BLwkoqOUWQsm9CJ7ePpDaMT%2B9ovmnolv%2BuRoIhfcKhx3aZSLm2uhrF%2FL4AcdXS%2BNitALmNL5c8F6RX6esQzpuksmLHxq8aFTfz1vEgbklG%2BTES9bsYF8B8vV%2FSNz6VyRohQGGxgEKTgj2%2Bxmr35HpeO86jbz6EU3qHtCF662TCRBlXgnqkQqjzyNVzYrKAu86NFrwIinemjCs9amxBjqbAaIBk%2BWvSyb%2FTVqBq%2FPJSgDaMlmDsWvFMDgY4XcSHx1XuIpTrZxHDErObDG2oHG2VacFUtQw2aeK8OEig94pWd%2B9QhtBiMjbu0LX4IJhX7vNFZ%2BMKC4U7wQJ0lu3SbYwHFNQWWkx07ajTN24DruGQkrbgG%2BzG6u1WoXnr35cUrR0fJUnhqcb0ILVBA7gDpgoW1Xyiz7Bg0mnIKjb&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20240425T155243Z&X-Amz-SignedHeaders=host&X-Amz-Expires=86394&X-Amz-Credential=ASIAVTQFS4YDTMPXPNXR%2F20240425%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=872cc212faa8676dcb492f195ddfd9de054e7cf2024165f0d795f9c5b56e9600"}';

  // Concatenate the webhook URL, Content-Type, and payload
  let hashBody = getBodyToHash(webhookUrl, contentType, payload);

  // Generate the signature
  let signature = generateSignature(secretKey, hashBody);

  // Output the signature
  console.log(`Generated signature: ${signature}`);
}

validateWebhook();

using System;
using System.Security.Cryptography;
using System.Text;
using System.Web;

class Program
{
    static void Main()
    {
        ValidateWebhook();
    }

    /*
     * This method creates a concatenated string from the provided webhook URL, content type, and payload.
     */
    static string GetBodyToHash(string webhookUrl, string contentType, string payload)
    {
        Uri requestUrl = new Uri(webhookUrl);
        string bodyToHash = $"{requestUrl.AbsolutePath}{contentType}{payload}";

        return bodyToHash;
    }

    /*
     * This method generates a signature from the provided secret and the hashed body.
     * It uses the HMAC-SHA256 hashing algorithm.
     */
    static string GenerateSignature(string secretKey, string hashBody)
    {
        using (var hmac = new HMACSHA256(Encoding.ASCII.GetBytes(secretKey)))
        {
            var hash = hmac.ComputeHash(Encoding.ASCII.GetBytes(hashBody));
            return BitConverter.ToString(hash).Replace("-", "").ToLower();
        }
    }

    /*
     * This function prints out the signature from inputs.
     */
    static void ValidateWebhook()
    {
        // Secret key that can be found under Settings -> Manage Merchants -> Merchant Name in your BVNK merchant account
        const string secretKey = "YTczZmM5YTEtZDFhNi00YWU5LTk4ODktMmEzODI1NzBkMDI2ZWFjNDcwNzgtNTRkYi00OTY0LWI5NjAtMzRmOTQ0ZTE5NDQ3";

        // Webhook URL that you've set under Settings -> Manage Merchants -> Webhook URL
        const string webhookUrl = "https://webhook.site/11488aba-735e-4906-9809-f1a11a91f49f";

        // Content-Type needed for concatenating the values
        const string contentType = "application/json";

        // Body of the webhook.
        const string payload = "{\"event\":\"reportGenerated\",\"url\":\"https://coindirect-filestore.s3.amazonaws.com/com.bvnk.reports.BackgroundReport/b9ee2544-b838-4c37-9051-3974c4d19fef.csv?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGAaCWV1LXdlc3QtMSJHMEUCIQChnP0FdjPn0tJ8HMz%2BsKwRgHwvqKO8shW1Fs1R57FfuwIgYHtQLOrJoY2WiKHO3SmAAcVHUqptlzakFz6XM9tkkSMqkwUIqf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwzODU0ODUwMzkxMTEiDAxHTlmQuRKIa3%2FGMSrnBDRX%2BpF1M9F%2FKDbtH3mxQvG1nORC%2BTcxgrNnTFmYcjpr%2BLFpa22PnVrbPXFEaMnsCzySRqgi%2FBz4QNUAZdGvvDZswQFh53a2pC5gmQN3xWd1pzfzkeOaZwVgbyaq1dsTteLQhZdI9lzJG7ceXaLyHWw23P%2B3JocLJKqRp0ugdc3Ksj3RhtgerqxRx80mToq98xB7ndjhoWyVTALQ4Bk7dpBEzoF8ZpQ8zC46uJufwmazn8tZDJK%2Fg603djWfMfCR53lpenLtIxxWD0Feph2IoI5arn2XF%2BZqCg2j8kWAriMYyfOohG1SLcHzjozscsCWNlZgsFJBCypiZltnnUGbPLhUjtodW6a8F7Oib6yB5wEIGcVcvUj1obq%2FL7%2FN78wHaRH5PlzcD%2F9Z%2BoqBPwu%2BKSgl8QTNp%2FG8cO8KwXvm4Gq6%2Fix%2FZMKsfLjPWQ%2BCeZTfm8t9WBFPd5Var89rfZIr26pz5R8XAtIMmVqY8mbLZeDKVem5DwVt1fwBlDb%2BKC9cdduWLfuAFh6kRTG744d71XCetYTw8TUMdZ7emcVHk%2BjHC8qHqwE1bYsG0DAoXJ%2BARW6xwqAxID%2FjkmhJ8Nn%2B07UBtHU6UPhHhCpBLYCu%2B75%2BLwkoqOUWQsm9CJ7ePpDaMT%2B9ovmnolv%2BuRoIhfcKhx3aZSLm2uhrF%2FL4AcdXS%2BNitALmNL5c8F6RX6esQzpuksmLHxq8aFTfz1vEgbklG%2BTES9bsYF8B8vV%2FSNz6VyRohQGGxgEKTgj2%2Bxmr35HpeO86jbz6EU3qHtCF662TCRBlXgnqkQqjzyNVzYrKAu86NFrwIinemjCs9amxBjqbAaIBk%2BWvSyb%2FTVqBq%2FPJSgDaMlmDsWvFMDgY4XcSHx1XuIpTrZxHDErObDG2oHG2VacFUtQw2aeK8OEig94pWd%2B9QhtBiMjbu0LX4IJhX7vNFZ%2BMKC4U7wQJ0lu3SbYwHFNQWWkx07ajTN24DruGQkrbgG%2BzG6u1WoXnr35cUrR0fJUnhqcb0ILVBA7gDpgoW1Xyiz7Bg0mnIKjb&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20240425T155243Z&X-Amz-SignedHeaders=host&X-Amz-Expires=86394&X-Amz-Credential=ASIAVTQFS4YDTMPXPNXR%2F20240425%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=872cc212faa8676dcb492f195ddfd9de054e7cf2024165f0d795f9c5b56e9600\"}";

        // Concatenate the webhook URL, Content-Type, and payload
        string hashBody = GetBodyToHash(webhookUrl, contentType, payload);

        // Generate the signature
        string signature = GenerateSignature(secretKey, hashBody);

        // Output the signature
        Console.WriteLine($"Generated signature: {signature}");
    }
}

require 'openssl'
require 'uri'
require 'json'

# This method creates a concatenated string from the provided webhook URL, content type, and payload.
# @param webhook_url [String] The URL where the webhook will be sent.
# @param content_type [String] The MIME type of the content.
# @param payload [String] The actual content body of the webhook.
# @return [String] A concatenated string of the provided parameters.
def get_body_to_hash(webhook_url, content_type, payload)
  request_url = URI.parse(webhook_url)
  body_to_hash = "#{request_url.path}#{content_type}#{payload}"

  return body_to_hash
end

# This method generates a signature from the provided secret and the hashed body.
# It uses the HMAC-SHA256 hashing algorithm.
# @param secret_key [String] The secret key used to generate the hash.
# @param hash_body [String] The body that needs to be hashed.
# @return [String] The HMAC-SHA256 hash of the body, encoded as a hexadecimal string.
def generate_signature(secret_key, hash_body)
  digest = OpenSSL::Digest.new('sha256')
  hmac = OpenSSL::HMAC.hexdigest(digest, secret_key, hash_body)

  return hmac
end

# This function prints out the signature from inputs.
def validate_webhook
  # EXAMPLE TEST DATA
  # Secret key that can be found under Settings -> Manage Merchants -> Merchant Name in your BVNK merchant account
  secret_key = 'YTczZmM5YTEtZDFhNi00YWU5LTk4ODktMmEzODI1NzBkMDI2ZWFjNDcwNzgtNTRkYi00OTY0LWI5NjAtMzRmOTQ0ZTE5NDQ3'

  # Webhook URL that you've set under Settings -> Manage Merchants -> Webhook URL
  webhook_url = 'https://webhook.site/11488aba-735e-4906-9809-f1a11a91f49f'

  # Content-Type needed for concatenating the values
  content_type = 'application/json'

  # Body of the webhook.
  payload = '{"event":"reportGenerated","url":"https://coindirect-filestore.s3.amazonaws.com/com.bvnk.reports.BackgroundReport/b9ee2544-b838-4c37-9051-3974c4d19fef.csv?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGAaCWV1LXdlc3QtMSJHMEUCIQChnP0FdjPn0tJ8HMz%2BsKwRgHwvqKO8shW1Fs1R57FfuwIgYHtQLOrJoY2WiKHO3SmAAcVHUqptlzakFz6XM9tkkSMqkwUIqf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwzODU0ODUwMzkxMTEiDAxHTlmQuRKIa3%2FGMSrnBDRX%2BpF1M9F%2FKDbtH3mxQvG1nORC%2BTcxgrNnTFmYcjpr%2BLFpa22PnVrbPXFEaMnsCzySRqgi%2FBz4QNUAZdGvvDZswQFh53a2pC5gmQN3xWd1pzfzkeOaZwVgbyaq1dsTteLQhZdI9lzJG7ceXaLyHWw23P%2B3JocLJKqRp0ugdc3Ksj3RhtgerqxRx80mToq98xB7ndjhoWyVTALQ4Bk7dpBEzoF8ZpQ8zC46uJufwmazn8tZDJK%2Fg603djWfMfCR53lpenLtIxxWD0Feph2IoI5arn2XF%2BZqCg2j8kWAriMYyfOohG1SLcHzjozscsCWNlZgsFJBCypiZltnnUGbPLhUjtodW6a8F7Oib6yB5wEIGcVcvUj1obq%2FL7%2FN78wHaRH5PlzcD%2F9Z%2BoqBPwu%2BKSgl8QTNp%2FG8cO8KwXvm4Gq6%2Fix%2FZMKsfLjPWQ%2BCeZTfm8t9WBFPd5Var89rfZIr26pz5R8XAtIMmVqY8mbLZeDKVem5DwVt1fwBlDb%2BKC9cdduWLfuAFh6kRTG744d71XCetYTw8TUMdZ7emcVHk%2BjHC8qHqwE1bYsG0DAoXJ%2BARW6xwqAxID%2FjkmhJ8Nn%2B07UBtHU6UPhHhCpBLYCu%2B75%2BLwkoqOUWQsm9CJ7ePpDaMT%2B9ovmnolv%2BuRoIhfcKhx3aZSLm2uhrF%2FL4AcdXS%2BNitALmNL5c8F6RX6esQzpuksmLHxq8aFTfz1vEgbklG%2BTES9bsYF8B8vV%2FSNz6VyRohQGGxgEKTgj2%2Bxmr35HpeO86jbz6EU3qHtCF662TCRBlXgnqkQqjzyNVzYrKAu86NFrwIinemjCs9amxBjqbAaIBk%2BWvSyb%2FTVqBq%2FPJSgDaMlmDsWvFMDgY4XcSHx1XuIpTrZxHDErObDG2oHG2VacFUtQw2aeK8OEig94pWd%2B9QhtBiMjbu0LX4IJhX7vNFZ%2BMKC4U7wQJ0lu3SbYwHFNQWWkx07ajTN24DruGQkrbgG%2BzG6u1WoXnr35cUrR0fJUnhqcb0ILVBA7gDpgoW1Xyiz7Bg0mnIKjb&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20240425T155243Z&X-Amz-SignedHeaders=host&X-Amz-Expires=86394&X-Amz-Credential=ASIAVTQFS4YDTMPXPNXR%2F20240425%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=872cc212faa8676dcb492f195ddfd9de054e7cf2024165f0d795f9c5b56e9600"}'

  # Concatenate the webhook URL, Content-Type, and payload
  hash_body = get_body_to_hash(webhook_url, content_type, payload)

  # Generate the signature
  signature = generate_signature(secret_key, hash_body)

  # Output the signature
  puts "Generated signature: #{signature}"
end

validate_webhook