Connect-s4a

SEO4Ajax is a service that allows AJAX websites (e.g. based on Angular, React, Vue.js, Svelte, Backbone, Ember, jQuery etc.) to be indexable by search engines and social networks.

Connect-s4a is a middleware for the framework Connect. It provides an easy way to proxy bot requests to SEO4Ajax in Node.js applications.

Usage

The middleware must be imported before connect or express.

With connect :

var connect_s4a = require('connect-s4a');
var token = "your site token on SEO4Ajax";
var connect = require('connect');
var app = connect();
app.use(connect_s4a(token));
app.use(function(req, res){
    res.end('hello world\n');
});
app.listen(3000);

With express 3.x:

var connect_s4a = require('connect-s4a');
var token = "your site token on SEO4Ajax";
var express = require('express');
var app = express.createServer();
app.use(connect_s4a(token));
app.get('/', function(req, res){
    res.send('hello world');
});
app.listen(3000);

With express 4.x:

var connect_s4a = require('connect-s4a');
var token = "your site token on SEO4Ajax";
var express = require('express');
var app = express();
app.use(connect_s4a(token));
app.get('/', function(req, res){
    res.send('hello world');
});
app.listen(3000);

With Meteor:

import { WebApp } from 'meteor/webapp';
import connect_s4a from 'connect-s4a';

const token = "your site token on SEO4Ajax";

Meteor.startup(() => {
    WebApp.connectHandlers.use(connect_s4a(token));    
});

The connect_s4a function requrires one mandatory parameter: the token of the site on SEO4Ajax. The second parameter is optional, it is an object with the following property:

• apiEndPoint: URL to the API of SEO4Ajax ("http://api.seo4ajax.com/" by default)
• rootPath: a path added after the token when calling the API of SEO4Ajax ("" by default)
• includeUserAgents: a regular expression used to test the user-agent value of bots (/(bot|spider|pinterest|crawler|archiver|flipboard|mediapartners|facebookexternalhit|quora|whatsapp|outbrain|yahoo! slurp|embedly|developers.google.com\/+\/web/snippet|vkshare|w3c_validator|tumblr|skypeuripreview|nuzzel|qwantify|bitrix link preview|XING-contenttabreceiver|Chrome-Lighthouse|mail\.ru)/gi by default),
• ignoreUserAgents: a regular expression used to ignore the user-agent value of bots
• pathPattern: a regular expression indicating the paths that must be proxied to SEO4Ajax (undefined by default)

Installation

Via npm :

$ npm install connect-s4a

How it works

This module checks the presence of a user-agent string identifying bots. If a bot is detected, the module requests the snapshot from api.seo4ajax.com and returns it. Otherwise the module ignores the request.

Requirements

• node (>= 0.10.0)
• connect (>= 0.2.4) or express (>= 0.3.0)

Tests

node tests/run.js

License

(The MIT License)

Copyright (c) 2013-2022 Capsule Code

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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