【Core Data】How to Enable Device Data Storage Service and read Data

[Liguangwei0321]

version：V3.1 Napa

1.How to Enable Device Data Storage Service: or How to enable the device's data storage service
2.How Third-Party Software Reads Data from the Device's Database:

[cloudxxx8]

What is the Device Data Storage Service you mentioned here?
To retrieve the existing data from core-data, you can execute the REST API to get Events or Readings
https://docs.edgexfoundry.org/3.1/microservices/core/data/ApiReference/

[Liguangwei0321]

https://docs.edgexfoundry.org/3.1/microservices/core/data/ApiReference/

是指的core data去保存传感器数据，配置使能该功能，并通过接口读取传感器数据；

[cloudxxx8]

You can build another service to surve your purpose. It doesn't have to tie to core-data.
All you need to do is to subscribe the event messaging topics to receive data from Device Services, and handle the data whatever you want.