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37 lines
1.2 KiB
JavaScript
37 lines
1.2 KiB
JavaScript
'use strict'
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// A simple web server that generates dyanmic content based on responses from Redis
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var http = require('http')
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var redisClient = require('redis').createClient()
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http.createServer(function (request, response) { // The server
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response.writeHead(200, {
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'Content-Type': 'text/plain'
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})
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var redisInfo, totalRequests
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redisClient.info(function (err, reply) {
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if (err) throw err
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redisInfo = reply // stash response in outer scope
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})
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redisClient.incr('requests', function (err, reply) {
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if (err) throw err
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totalRequests = reply // stash response in outer scope
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})
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redisClient.hincrby('ip', request.connection.remoteAddress, 1)
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redisClient.hgetall('ip', function (err, reply) {
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if (err) throw err
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// This is the last reply, so all of the previous replies must have completed already
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response.write('This page was generated after talking to redis.\n\n' +
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'Redis info:\n' + redisInfo + '\n' +
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'Total requests: ' + totalRequests + '\n\n' +
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'IP count: \n')
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Object.keys(reply).forEach(function (ip) {
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response.write(' ' + ip + ': ' + reply[ip] + '\n')
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})
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response.end()
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})
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}).listen(80)
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