SignatureVerificationError: No signatures found matching the expected signature [signature] for payload

[nodirbekrajaboff]

No matter how many times I try, I get the same error. I also added the API address and webhook secret API. But every time the webhook is called, the same error occurs.

My Codes:

import { Router } from "express";
import coinbase from "coinbase-commerce-node";

const router = Router();
const client = coinbase.Client;
const resources = coinbase.resources;
const webhook = coinbase.Webhook;

client.init(process.env.COINBASE_API_KEY as string);

router.post("/coinbase/checkout", async (req, res) => {
  const { amount, currency } = req.body;
  try {
    const charge = await resources.Charge.create({
      name: "Test",
      description: "Test",
      pricing_type: "fixed_price",
      local_price: { amount, currency },
      metadata: {
        customer_id: "123456789",
      },
    });
    res.json({ charge });
  } catch (err) {
    res.status(500).json({
      error: err,
    });
  }
});
router.post("/coinbase/webhook", (req, res) => {
  try {
    const rawBody = req.rawBody;
    const signature = req.headers["x-cc-webhook-signature"] as string;
    const webhookSecret = process.env.COINBASE_WEBHOOK_SECRET as string;

    const event = webhook.verifyEventBody(rawBody, signature, webhookSecret);
    res.send(event.id);
  } catch (err) {
    console.log(err);
    res.status(400).send("failed");
  }
});

export default router;

Error:

SignatureVerificationError: No signatures found matching the expected signature 1a5db1b818054c2ff092855e432e133d4e35da54d3e7a8931ae181eb35f7269a for payload {"attempt_number":1,"event":{"api_version":"2018-03-22","created_at":"2023-08-13T18:52:49Z","data":{"id":"58b3fd8b-dcd8-4da8-ad34-704722beebd0","code":"RF68JNYX","name":"Test","utxo":false,"pricing":{"local":{"amount":"1.00","currency":"USD"},"tether":{"amount":"1.000796","currency":"USDT"}},"fee_rate":0.01,"logo_url":"","metadata":{"customer_id":"123456789"},"payments":[],"resource":"charge","timeline":[{"time":"2023-08-13T18:52:49Z","status":"NEW"}],"addresses":{"tether":"0x583e89ba1b7e3478923dca71e3eb7ae14f945896"},"pwcb_only":false,"created_at":"2023-08-13T18:52:49Z","expires_at":"2023-08-13T19:52:49Z","hosted_url":"https://commerce.coinbase.com/charges/RF68JNYX","brand_color":"#122332","description":"Test","fees_settled":true,"pricing_type":"fixed_price","support_email":"xxxxxx@gmail.com","brand_logo_url":"","exchange_rates":{"USDT-USD":"0.999205"},"offchain_eligible":false,"organization_name":"XXXXXX","payment_threshold":{"overpayment_absolute_threshold":{"amount":"5.00","currency":"USD"},"overpayment_relative_threshold":"0.005","underpayment_absolute_threshold":{"amount":"5.00","currency":"USD"},"underpayment_relative_threshold":"0.005"},"local_exchange_rates":{"USDT-USD":"0.999205"},"coinbase_managed_merchant":false},"id":"09aafcd9-180b-4ae8-8ef3-dbe832d2d83a","resource":"event","type":"charge:created"},"id":"c65b10e9-764b-41b4-a62c-b58f3690d8a9","scheduled_for":"2023-08-13T18:52:49Z"}
at Object.verifySigHeader (xxxxxx\node_modules\coinbase-commerce-node\lib\Webhook.js:36:10)
at Object.verifyEventBody (xxxxxx\node_modules\coinbase-commerce-node\lib\Webhook.js:23:8)
at xxxxxx\src\routes\coinbase.ts:36:27
at Layer.handle [as handle_request] (xxxxxx\node_modules\express\lib\router\layer.js:95:5)
at next (xxxxxx\node_modules\express\lib\router\route.js:144:13)
at Route.dispatch (xxxxxx\node_modules\express\lib\router\route.js:114:3)
at Layer.handle [as handle_request] (xxxxxx\node_modules\express\lib\router\layer.js:95:5)
at xxxxxx\node_modules\express\lib\router\index.js:284:15
at Function.process_params (xxxxxx\node_modules\express\lib\router\index.js:346:12)
at next (xxxxxx\node_modules\express\lib\router\index.js:280:10)

[abdurafeyf]

Assign this to me. I was just working with webhooks and I was facing the same issue. I might be able to help you