express-transaction-id

Express middleware to set a transaction id, unique identifier value that is attached to requests.

Installation

npm install express-transaction-id --save

Usage

In 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() });
});

Options

| Option | Type | Default | Description | | ------ |------|---------| ------------ | | header | String | x-transaction-id| The name of the inbound header to check for a transaction id. |

Methods

getId()

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

License

MIT