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simple-express-logs

1.2.1 • Public • Published

simple-express-logs

Simple express logging middleware

Are you prototyping an Express app and want a simple way to log all requests? Good news, you're looking at it.

Install

$ npm install --save simple-express-logs

Usage

const express = require('express');
const logger = require('simple-express-logs');
 
const app = express();
app.use(logger());

Or, in one line:

app.use(require('simple-express-logs')());

Output

By default, simple-express-logs outputs a timestamp, whether the request was made over HTTP or HTTPS, the HTTP verb, the path, the source IP, and the reverse DNS host (if available.)

20:06 1/15/2019 UTC: https POST /api/items/ from 24.63.26.119
5:17 1/8/2019 UTC: https GET /favicon.ico from 66.249.66.152 (crawl-66-249-66-152.googlebot.com)
20:06 1/15/2019 UTC: http GET / from 24.63.26.119 (c-24-63-26-119.hsd1.ma.comcast.net) referred by https://www.google.com
20:06 1/15/2019 UTC: http GET /style.css from 24.63.26.119 (c-24-63-26-119.hsd1.ma.comcast.net)

Options

Both the the header values and request body are not logged by default, but may be enabled when adding the middleware.

app.use(logger({ headers: true }));
23:15 1/25/2019 UTC: http POST /api/test/?type=sample Headers: { host: "localhost:8080", user-agent: "HTTPie/0.9.9", accept-encoding: "gzip, deflate", accept: "application/json, */*", connection: "keep-alive", content-type: "application/json", content-length: "24" }

Logging the body relies on the body property of the request to be populated, so make sure to do that before using the logger.

app.use(bodyParser.json());
app.use(logger({ body: true }));
23:15 1/25/2019 UTC: http POST /api/test/?type=sample Body: {"VehicleColor":"Blue"}

By default, reverse DNS is used to log the request's host.

app.use(logger());
5:17 1/8/2019 UTC: https GET /favicon.ico from 66.249.66.152 (crawl-66-249-66-152.googlebot.com)

This can be disabled with the reverseDNS option.

app.use(logger({ reverseDNS: false }));
5:17 1/8/2019 UTC: https GET /favicon.ico from 66.249.66.152

License

MIT © Jesse T Youngblood

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Install

npm i simple-express-logs

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Version

1.2.1

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