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Since v5 relies on node >= 18, this is now possible (since v16, v14.18.0 [^1][^2]). It's functionally irrelevant: 1. It's not required for CJS nor ESM (with a few exceptions [^3]) 2. It has no performance promises However, there are upsides to this approach: 1. It brings clear boundaries to what's a built-in and what's an external dependency 2. It reduces the risk of importing unwanted deps where a built-in is expected 3. It's slightly more interoperable with other JS runtimes that provide node compatibility[^4], albeit only during development. Once imported from npm, built-ins are assumed. [^1]:https://nodejs.org/docs/latest-v22.x/api/modules.html#built-in-modules [^2]:https://github.com/nodejs/node/pull/37246 [^3]:https://nodejs.org/api/modules.html#built-in-modules-with-mandatory-node-prefix [^4]:https://docs.deno.com/runtime/fundamentals/node/#using-node's-built-in-modules
62 lines
1.1 KiB
JavaScript
62 lines
1.1 KiB
JavaScript
'use strict'
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// install redis first:
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// https://redis.io/
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// then:
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// $ npm install redis
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// $ redis-server
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/**
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* Module dependencies.
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*/
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var express = require('../..');
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var path = require('node:path');
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var redis = require('redis');
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var db = redis.createClient();
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// npm install redis
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var app = express();
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app.use(express.static(path.join(__dirname, 'public')));
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// populate search
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db.sadd('ferret', 'tobi');
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db.sadd('ferret', 'loki');
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db.sadd('ferret', 'jane');
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db.sadd('cat', 'manny');
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db.sadd('cat', 'luna');
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/**
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* GET search for :query.
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*/
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app.get('/search/:query?', function(req, res, next){
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var query = req.params.query;
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db.smembers(query, function(err, vals){
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if (err) return next(err);
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res.send(vals);
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});
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});
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/**
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* GET client javascript. Here we use sendFile()
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* because serving __dirname with the static() middleware
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* would also mean serving our server "index.js" and the "search.jade"
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* template.
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*/
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app.get('/client.js', function(req, res){
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res.sendFile(path.join(__dirname, 'client.js'));
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});
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/* istanbul ignore next */
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if (!module.parent) {
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app.listen(3000);
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console.log('Express started on port 3000');
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}
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