logger.md

Logger

Configure a logger to output information from http-proxy-middleware: ie. console, winston, pino, bunyan, log4js, etc...

console

const { createProxyMiddleware } = require('http-proxy-middleware');

const proxy = createProxyMiddleware({
  target: 'http://localhost:3000',
  logger: console,
});

winston

https://github.com/winstonjs/winston

const { createProxyMiddleware } = require('http-proxy-middleware');
const winston = require('winston');
const { format, transports } = require('winston');

// Enable interpolation in log messages
// https://github.com/winstonjs/winston#string-interpolation
const logger = winston.createLogger({
  format: format.combine(format.splat(), format.simple()),
  transports: [new transports.Console()],
});

const proxy = createProxyMiddleware({
  target: 'http://localhost:3000',
  logger,
});

pino

https://github.com/pinojs/pino

const { createProxyMiddleware } = require('http-proxy-middleware');
const pino = require('pino');

const logger = pino();

const proxy = createProxyMiddleware({
  target: 'http://localhost:3000',
  logger,
});

log4js

https://github.com/log4js-node/log4js-node

const { createProxyMiddleware } = require('http-proxy-middleware');
const log4js = require('log4js');

const logger = log4js.getLogger();
logger.level = 'debug';

const proxy = createProxyMiddleware({
  target: 'http://localhost:3000',
  logger,
});

bunyan

https://github.com/trentm/node-bunyan

const { createProxyMiddleware } = require('http-proxy-middleware');
const bunyan = require('bunyan');

const logger = bunyan.createLogger({
  name: 'my-app',
});

const proxy = createProxyMiddleware({
  target: 'http://localhost:3000',
  logger,
});