Namespace uplink

Example

import * as message from 'jooby-codec/mtx1/message/uplink';
import * as frame from 'jooby-codec/mtx1/utils/frame.js';
import getBytesFromHex from 'jooby-codec/utils/getBytesFromHex.js';

const aesKey = [...Array(16).keys()];

// a message with one getBuildVersion command
const messageBytes = getBytesFromHex('0a 13 9b 4b f7 2a d1 e5 49 a5 09 50 9a 59 7e c2 b5 88');
// the same message as a frame
const frameBytes = getBytesFromHex('7e 51 aa aa ff ff 0a 7d 33 9b 4b f7 2a d1 e5 49 a5 09 50 9a 59 7d 5e c2 b5 88 21 54 7e');

const parsedMessage = message.fromBytes(messageBytes, {aesKey});

console.log('parsed message:', parsedMessage);
// output:
{
    messageId: 10,
    accessLevel: 3,
    commands: [
        {
            id: 112,
            name: 'getBuildVersion',
            headerSize: 2,
            bytes: [Array],
            parameters: [Object]
        }
    ],
    bytes: [10,19,155,75,247,42,209,229,73,165,9,80,154,89,126,194,181,136],
    lrc: {received: 53, calculated: 53}
}

const parsedFrame = frame.fromBytes(frameBytes);

console.log('parsed frame:', parsedFrame);
// output:
{
    bytes: [10,19,155,75,247,42,209,229,73,165,9,80,154,89,126,194,181,136],
    crc: {calculated: 21537, received: 21537},
    header: {type: 81, destination: 43690, source: 65535}
}

// parsed successfully
if ( 'bytes' in parsedFrame ) {
    const parsedMessage2 = message.fromBytes(parsedFrame.bytes, {aesKey});

    if ( JSON.stringify(parsedMessage) === JSON.stringify(parsedMessage2) ) {
        console.log('correct message');
    } else {
        throw new Error('parsedMessage and parsedMessage2 should be identical!');
    }
}
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