Node.js
Node.js의 사용 사례
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HTTP 서버
const http = require('http');
console.log('Starting server...');
var config = {
port: 80,
contentType: 'application/json; charset=utf-8'
};
// JSON-API server on port 80
var server = http.createServer();
server.listen(config.port);
server.on('error', (err) => {
if (err.code == 'EADDRINUSE') console.error('Port '+ config.port +' is already in use');
else console.error(err.message);
});
server.on('request', (request, res) => {
var remoteAddress = request.headers['x-forwarded-for'] || request.connection.remoteAddress; // Client address
console.log(remoteAddress +' '+ request.method +' '+ request.url);
var out = {};
// Here you can change output according to `request.url`
out.test = request.url;
res.writeHead(200, {
'Content-Type': config.contentType
});
res.end(JSON.stringify(out));
});
server.on('listening', () => {
c.info('Server is available: http://localhost:'+ config.port);
});
명령 프롬프트가있는 콘솔
const process = require('process');
const rl = require('readline').createInterface(process.stdin, process.stdout);
rl.pause();
console.log('Something long is happening here...');
var cliConfig = {
promptPrefix: ' > '
}
/*
Commands recognition
BEGIN
*/
var commands = {
eval: function(arg) { // Try typing in console: eval 2 * 10 ^ 3 + 2 ^ 4
arg = arg.join(' ');
try { console.log(eval(arg)); }
catch (e) { console.log(e); }
},
exit: function(arg) {
process.exit();
}
};
rl.on('line', (str) => {
rl.pause();
var arg = str.trim().match(/([^"]+)|("(?:[^"\\]|\\.)+")/g); // Applying regular expression for removing all spaces except for what between double quotes: http://stackoverflow.com/a/14540319/2396907
if (arg) {
for (let n in arg) {
arg[n] = arg[n].replace(/^\"|\"$/g, '');
}
var commandName = arg[0];
var command = commands[commandName];
if (command) {
arg.shift();
command(arg);
}
else console.log('Command "'+ commandName +'" doesn\'t exist');
}
rl.prompt();
});
/*
END OF
Commands recognition
*/
rl.setPrompt(cliConfig.promptPrefix);
rl.prompt();
Modified text is an extract of the original Stack Overflow Documentation
아래 라이선스 CC BY-SA 3.0
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