Created
November 23, 2011 21:49
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Node.js jako platforma do tworzenia i uruchamiania programów CLI - przykład zastosowania http.request() /dawniej http.createClient()/
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#!/usr/bin/env node | |
// Bardzo^3 prosty CURL-like | |
// Wywołanie: | |
// node requesturl.js adres_strony_bez_http | |
// np.: | |
// node requesturl.js wileczeknet.blogspot.com | |
var http = require("http"); | |
// Parametry wywołania (linia polecenia) | |
var argv = []; | |
process.argv.forEach(function (val, index, array) { | |
argv[index] = val; | |
}); | |
if (argv.length > 2) { | |
// Prawdopodobnie podano adres strony, można rozpocząć pobieranie | |
console.log("Rozpoczynam pobieranie strony '" + argv[2] + "'"); | |
// Port 80 hardcoded ;-) | |
// A przy okazji: można użyć http.get zamiast http.request (jesli już hardcodujemy)... | |
var req = http.request({ host: argv[2], port: 80, path: "/", method: "GET" }, function(response) { | |
var data = ""; | |
var chunks = 0; | |
response.setEncoding('utf-8'); | |
response.on("data", function(chunk) { | |
data += chunk; | |
chunks++; | |
}); | |
response.on("end", function() { | |
console.log(data); | |
console.log("\nLiczba paczek: " + chunks); | |
console.log("Liczba odebranych znaków: " + data.length); | |
console.log("Liczba odebranych bajtów: " + Buffer.byteLength(data, 'utf-8')); | |
}); | |
}); | |
req.on("error", function(err) { | |
console.log("Błąd: " + err.message); | |
}); | |
req.end(); | |
} else { | |
console.log("Błędna liczba parametrów"); | |
} |
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