A codec for lightweight M2M (LWM2M) data formats.
npm install lwm2m-codec
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A codec for lightweight M2M (LWM2M) data formats.
> $ npm install lwm2m-codec --save
TLV:
``js
var lwCodec = require(lwm2m-codec);
lwCodec.encode('tlv', '/3303/0', { 5700: 31, 5701: 'c' });
lwCodec.encode('tlv', '/temperature/0', { 5700: 31, 5701: 'c' });
lwCodec.encode('tlv', '/temperature/0', { sensorValue: 31, units: 'c' });
// Buffer <0x08, 0x00, 0x0b, 0xe4, 0x16, 0x44, 0x41, 0xf8, 0x00, 0x00, 0xe1, 0x16, 0x45, 0x63>;
lwCodec.decode('tlv', '/3303/0', new Buffer ([0x08, 0x00, 0x0b, 0xe4, 0x16, 0x44, 0x41, 0xf8, 0x00, 0x00, 0xe1, 0x16, 0x45, 0x63]));
// { sensorValue: 31, units: 'c' }
`
JSON:
`js
var lwCodec = require(lwm2m-codec);
lwCodec.encode('json', '/3303/0', { 5700: 31, 5701: 'c' });
lwCodec.encode('json', '/temperature/0', { 5700: 31, 5701: 'c' });
lwCodec.encode('json', '/temperature/0', { sensorValue: 31, units: 'c' });
// Buffer <7b 22 62 6e 22 3a 22 2f 33 33 30 33 2f 30 22 2c 22 65 22 3a 5b 7b 22 6e 22 3a 22 35 37 30 30 22 2c 22 76 22 3a 33 31 7d 2c 7b 22 6e 22 3a 22 35 37 30 31 22 2c 22 73 76 22 3a 22 63 22 7d 5d 7d 0d>;
// String {"bn":"/3303/0","e":[{"n":"5700","v":31},{"n":"5701","sv":"c"}]}
lwCodec.decode('json', '/3303/0', new Buffer ([0x7b ,0x22 ,0x62 ,0x6e ,0x22 ,0x3a ,0x22 ,0x2f ,0x33 ,0x33 ,0x30 ,0x33 ,0x2f ,0x30 ,0x22 ,0x2c ,0x22 ,0x65 ,0x22 ,0x3a ,0x5b ,0x7b ,0x22 ,0x6e ,0x22 ,0x3a ,0x22 ,0x35 ,0x37 ,0x30 ,0x30 ,0x22 ,0x2c ,0x22 ,0x76 ,0x22 ,0x3a ,0x33 ,0x31 ,0x7d ,0x2c ,0x7b ,0x22 ,0x6e ,0x22 ,0x3a ,0x22 ,0x35 ,0x37 ,0x30 ,0x31 ,0x22 ,0x2c ,0x22 ,0x73 ,0x76 ,0x22 ,0x3a ,0x22 ,0x63 ,0x22 ,0x7d ,0x5d ,0x7d
]));
// { sensorValue: 31, units: 'c' }
``
Licensed under MIT.