@vizydrop/correlation-id/lib/enhance-http-proxy.js

Vizydrop correlation id helper based on async hooks

/*********************************************************************
* © Copyright IBM Corp. 2025
*********************************************************************/
const utils = require('./utils');

module.exports = function enhanceHttpProxy(correlator, opts = {}) {
    return function enhancer(proxy) {
        proxy.on('proxyReq', (proxyReq, req) => {
            proxyReq.setHeader(
                utils.getHeaderName(opts),
                correlator.getId() || req.correlationId || req.get(utils.getHeaderName(opts)),
            );
        });
    };
};