express-spider-middleware
npm i express-spider-middleware

express-spider-middleware

An ExpressJS middleware for detecting search engine crawlers and spiders, with the option of including a callback to perform additional search engine-specific logic such as logging or monitoring.

by teamwethrift

1.1.9 (see all)License:MITTypeScript:Not FoundCategories:Express Crawler
npm i express-spider-middleware
Readme

express-spider-middleware

An ExpressJS middleware for detecting search engine crawlers and spiders, with the option of including a callback to perform additional search engine-specific logic such as logging or monitoring.

This module is a fork of Michael Heuberger's spider-detector. We use this module at Wethrift.com to handle additional logging and monitoring of search engine crawlers.

Install

npm install express-spider-middleware

User-agent string detector

Detect whether any user-agent string matches a known crawler or bot.

var detector = require('spider-detector')
detector.isSpider('baiduspider') // return true

ExpressJS middleware - Detecting crawlers

Use as an ExpressJS middleware to attach an isSpider property to every request.

var expressSpiderMiddleware = require('express-spider-middleware'),
    express  = require('express'),
    app      = express()

app.use(expressSpiderMiddleware.middleware())

app.get('/*', function(req, res) {
    if (req.isSpider()) {
        // handle request from search engine crawler
    } else {
        // handle all other requests
    }
})

Using a callback to handle additional logic for all requests

The .middleware() method accepts an optional callback function that will execute for all routes when a crawler is detected.

app.use(expressSpiderMiddleware.middleware(function(req){
  console.log('Crawler detected:', req.get('user-agent'))
}))

Downloads/wk

38

GitHub Stars

0

LAST COMMIT

2yrs ago

MAINTAINERS

1

CONTRIBUTORS

4

OPEN ISSUES

0

OPEN PRs

1
VersionTagPublished
1.1.9
latest
2yrs ago
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