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simple_sample_module_method.js
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simple_sample_module_method.js
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// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
'use strict';
var Protocol = require('azure-iot-device-mqtt').Mqtt;
var ModuleClient = require('azure-iot-device').ModuleClient;
var fs = require('fs');
var connectionString = process.env.EdgeHubConnectionString;
var client = ModuleClient.fromConnectionString(connectionString, Protocol);
console.log('got client');
client.on('error', function (err) {
console.error(err.message);
});
client.setOptions({
ca: fs.readFileSync(process.env.EdgeModuleCACertificateFile).toString('ascii')
}, function(err) {
if (err) {
console.log('error:' + err);
} else {
// connect to the edge instance
client.open(function (err) {
if (err) {
console.error('Could not connect: ' + err.message);
} else {
console.log('Client connected');
client.onMethod('doSomethingInteresting', function(request, response) {
console.log('doSomethingInteresting called');
if(request.payload) {
console.log('Payload:');
console.dir(request.payload);
}
var responseBody = {
message: 'doSomethingInteresting succeeded'
};
response.send(200, responseBody, function(err) {
if (err) {
console.log('failed sending method response: ' + err);
} else {
console.log('successfully sent method response');
}
});
});
}
});
}
});