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Simple web server that integrates with Redis.
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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"), server, | ||
redis_client = require("redis").createClient(); | ||
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server = http.createServer(function (request, response) { | ||
response.writeHead(200, { | ||
"Content-Type": "text/plain" | ||
}); | ||
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var redis_info, total_requests; | ||
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redis_client.info(function (err, reply) { | ||
redis_info = reply; // stash response in outer scope | ||
}); | ||
redis_client.incr("requests", function (err, reply) { | ||
total_requests = reply; // stash response in outer scope | ||
}); | ||
redis_client.hincrby("ip", request.connection.remoteAddress, 1); | ||
redis_client.hgetall("ip", function (err, reply) { | ||
// This is the last reply, so all of the previous replies must have completed already | ||
response.write("This page was generated after talking to redis.\n\n" + | ||
"Redis info:\n" + redis_info + "\n" + | ||
"Total requests: " + total_requests + "\n\n" + | ||
"IP count: \n"); | ||
Object.keys(reply).forEach(function (ip) { | ||
response.write(" " + ip + ": " + reply[ip] + "\n"); | ||
}); | ||
response.end(); | ||
}); | ||
}).listen(80); |