Overview of the REST Query

The REST query contains APIs to fetch data from the Historian database. You can fetch data such as the latest data point of a tag or data points for a duration. Using these APIs, you can also work on aggregation techniques like average, minimum, and maximum values. The REST query container exposes port number 8989 for querying the data. These REST APIs are exactly the same as Predix Time Series REST APIs. For more information, see the Predix Time Series service documentation at https://docs.predix.io/en-US/content/service/data_management/time_series/ and the Time Series service API documentation at https://www.predix.io/api.

The Docker image for the Historian database container is bundled with the REST query. You can set up the REST query on Predix Edge or a generic Linux distribution such as Ubuntu or CentOS.