socket.js
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const socket = {};
const Net = require('net');
socket.initConection = function(port, host) {
socket.client = Net.Socket();
return new Promise(function(resolve, reject) {
socket.client.connect({ port: port, host: host }, function () {
resolve();
});
});
};
socket.getTank = function(code) {
//caracter necesario
var soh = String.fromCharCode(01);
var respuesta = '';
socket.client.write(soh + code);
return new Promise(function(resolve, reject) {
socket.client.on('data', function(chunk) {
var data = chunk.toString('utf8');
respuesta += data;
if (respuesta[respuesta.length - 1].charCodeAt(0) == 3) {
resolve(respuesta);
}
});
});
};
socket.end = function() {
socket.client.end();
};
module.exports = socket;