39 lines
784 B
JavaScript
39 lines
784 B
JavaScript
import * as net from 'net';
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const hostname = '192.168.1.219';
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const port = 29999;
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function getBinarySize(string) {
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return Buffer.byteLength(string, 'utf8');
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}
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function padLeft(size = 4, str = '') {
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let remaining = size - str.length;
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return '0'.repeat(remaining) + str;
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}
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export default function req(data, callback, errorCallback) {
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let string_data = JSON.stringify(data);
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let size = getBinarySize(string_data);
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if (size > 9999) {
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errorCallback("too long");
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return;
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}
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let client = new net.Socket();
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client.connect(port, hostname, () => {
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let res = client.write(padLeft(4, `${size}`));
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if (res) {
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client.write(string_data);
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}
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client.destroy();
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callback('success.');
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});
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client.on('error', (e) => {
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client.destroy();
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errorCallback(e);
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});
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}
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