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server.js
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server.js
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var express = require('express')
var path = require('path')
var Registry = require('azure-iothub').Registry;
const bodyParser = require('body-parser');
var app = express()
var port = 4002
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
// this is the only supported scenario
app.get('/api/twin/:deviceId', (req, res) => {
var deviceId = req.params.deviceId;
var sasToken = req.headers.authorization;
const registry = Registry.fromSharedAccessSignature(sasToken);
registry.getTwin(deviceId, (err, twin) => {
if (err) { res.status(500).json(err.responseBody ? JSON.parse(err.responseBody) : { "Message": "Error getting twin" }); return; }
res.send(twin);
});
})
app.use(express.static('build'));
app.get('*', (req, res) => res.sendFile(path.resolve(__dirname + '/build/index.html')));
app.listen(port, () => {
console.log(`Twin Viewer app listening at http://localhost:${port}`)
})