koa-request-logger

Koa request logger [![NPM version][npm-image]][npm-url]
============================

Simple middleware for Koa 2 to log in and out request, with diff time, and custom logger.

Install

``
npm install --save koa-request-logger
`

Usage

`
const Koa = require('Koa');
const koaRequestLogger = require('koa-request-logger');

const app = new Koa();
app.use(koaRequestLogger());

app.listen(3000);
`

Options

You can customize :

- `logger`, the logger object, by default `console`
- `method`, the logger method, by default `log`
- `format`, the output format function for IN and OUT request which takes params:
- `ctx`: the koa context of the request
- `id`: an unique ID to match in/out with easy
- `isIn`: true if IN request, else false,
- `timeDiff`: diff time for OUT requests (null for IN requests)

$3

`
const Koa = require('Koa');
const koaRequestLogger = require('koa-request-logger');
const winston = require('winston');

const logger = new (winston.Logger)({
transports: [
new (winston.transports.Console)(),
new (winston.transports.File)({ filename: 'somefile.log' })
]
});

const app = new Koa();
app.use(koaRequestLogger({
logger,
method: 'info',
format: (ctx, id, isIn = true, timeDiff = null) => (isIn ?
Incoming request #${id}: method ${ctx.request.method}, url ${ctx.request.url} :
Sending request results #${id}: method ${ctx.request.method}, url ${ctx.request.url}, status: ${ctx.status}, duration: ${timeDiff}ms);
}));

app.listen(3000);
``

License

MIT

[npm-image]: https://img.shields.io/npm/v/koa-request-logger.svg?style=flat
[npm-url]: https://npmjs.org/package/koa-request-logger