Publish an Event with CoAP

// Install node coap client using `npm install node-coap-client`

const coap = require("node-coap-client").CoapClient;

// Create the buffer payload

// Replace 'your-device-secret-key' with the secret key for your device

// it should start with `d_sk`

const bufferPayload = Buffer.from(JSON.stringify({

  accessToken: 'your-device-secret-key',

  name: 'temperature',

  data: 21.5

}));

coap

    .request(

        'coap://coap.wia.io:5683',

        'post',

        bufferPayload

    )

    .then(response => {

      console.log(response.payload.toString('utf-8'));

    })

    .catch(err => {

      console.log(err);

    });