Goreplay

status.js

const gor = require('goreplay_middleware');
const fs = require('fs');
// `init` will initialize STDIN listener
gor.init();

// Example of very basic way to compare if replayed traffic have no errors
gor.on('request', function (req) {
    gor.on('response', req.ID, function (resp) {
        gor.on('replay', req.ID, function (repl) {
            if (gor.httpStatus(resp.http) != gor.httpStatus(repl.http)) {
                // Note that STDERR is used for logging, and it actually will be send to `Gor` STDOUT.
                // This trick is used because SDTIN and STDOUT already used for process communication.
                // You can write logger that writes to files insead.
                fs.appendFileSync(
                    './log.txt',
                    `${gor.httpPath(
                        req.http
                    )} STATUS NOT MATCH: 'Expected ${gor.httpStatus(
                        resp.http
                    )}' got '${gor.httpStatus(repl.http)}' \n`
                );
                console.error(
                    `${gor.httpPath(
                        req.http
                    )} STATUS NOT MATCH: 'Expected ${gor.httpStatus(
                        resp.http
                    )}' got '${gor.httpStatus(repl.http)}'`
                );
            }
            return repl;
        });
        return resp;
    });
    return req;
});