Node.js wrapper for mbed Device Connector REST calls 艾鍗教你從實作中認識物聯網！ https://bit.ly/3kLZhAq 課程使用Raspberry Pi結合ARM mbed Cloud來實現一個物聯網解決方案。你會了解M2M(Machine-to-Machine)網路協定,包含CoAP、MQTT、LWM2M等協定，並藉由Raspberry Pi連接 Cloud。 Raspberry Pi的部份教你連接一些感測器，包含GPIO、數位界面I2C的溫溼度感測器、類比感測器如光感應器等，並將這些感測器成為定義為不同的Resource Path並註冊在mbed cloud中。 本課程將採用Node.js撰寫WebAPP，使用HTTP/RESTful API存取Resource。在實作WebAPP中，除了後端Node.js，你也將會看到後端如何與前端瀏覽器之間要如何溝通的方式，如AJAX或WebSocket

1. Node.js wrapper for mbed Device Connector
REST calls
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2. Running the App
git clone https://github.com/it-
robot/mbed-webapp.git
cd mbed-webapp; node app.js
You should receive the following output:
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3. Creating an Access Key
Login to your account
at https://connector.mbed.com.
Under My applications, click Access keys.
Click Create New Access Key. When prompted,
enter a name for the access key (ex.
"Quickstart") and click ADD.
Copy the access key you just created and use
it when you're configuring your app.
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4. Code Snippet : app. js
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var MbedConnectorApi = require('mbed-connector-api');
// Instantiate an mbed Device Connector object
var mbedConnectorApi = new MbedConnectorApi({
accessKey: accessKey
});
mbedConnectorApi.getEndpoints(function(error, endpoints) {
…..
});
var Humidity = '/Sensor/0/Hum';
mbedConnectorApi.getResourceValue(data.endpointName, Humidity, function(error,
value) {
….
});
mbedConnectorApi. putResourceSubscription (data.endpointName, Humidity,
function(error, value) {
….
});
mbedConnectorApi.deleteResourceSubscription (data.endpointName, Humidity,
function(error, value) {
….
});
HTTPS/RESTful API

5. References
mbed Device Connector Web API
https://docs.mbed.com/docs/mbed-device-connector-web-
interfaces/en/latest/api-reference/
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6. https://goo.gl/8ZQ39e

7. https://goo.gl/McM4sy