- Follow instruction at Smartthings to create and configure the SmartApp.
- Follow the document to subscribe the things event. An example at github shows a sample code snippet of a working SmartApp – provides a HTTP GET API interface to list all the available things and the data.
- Also, follow the Firebase document to setup the client device SDK and note down the client device token, and the firebase server key.
- Write an event data handler to process the event and send downstream message by http POST. Sample code can be seen below.