Express middleware to set a transaction id, unique identifier value that is attached to requests.
npm install express-transaction-id --saveIn an express based application:
const express = require('express');
const transactionId = require('express-transaction-id');
const app = express();
// Adding `express-transaction-id` middleware to generate transaction IDs
app.use(transactionId({ header: 'x-global-transaction-id' }));
app.get('/foo', (req, res, next) => {
return res.status(200).json({ transaction_id: req.getId() });
});| Option | Type | Default | Description |
|---|---|---|---|
| header | String | x-transaction-id |
The name of the inbound header to check for a transaction id. |
This methods is added to the incoming request by express-transaction-id, and will allow you to get transaction_id of current request.
req.getId(); // 1c204313-6526-4f36-b32f-a36a410c4ed8