Data Federation Service API Overview


EnOS Data Federation service enables application developers and data analysts to query data from and write files to multi-source heterogeneous data storage systems. The data federation service APIs support querying the created data reading and writing channels, reading data from storages, and writing files to storages. For more information about the Data Federation service, see Data Federation.


For detailed information about EnOS APIs, see About EnOS API.


To get started with calling an EnOS API quickly, see Get Started with EnOS API.

API List

API Name Description
List Channels Get the list of channels (Read and Write) to which the application is authorized
Read Data Read data by providing SQL query through the specified channel
List Jobs Get the data reading jobs or data writing jobs of a specified channel
Get Job Details Get detailed information of a data reading job or a data writing job
Write Message Write message to data source through a specified channel
Write Chunk File Write file chunks to data source through a specified channel
Operate Channel Start or stop a read channel or write channel.
Create Download Request Create a file download task.
Get Download Status Get the status of a file download task.
Cancel Download Cancel a file download task.

Common Error Code

Code Description
81500 Internal service error.
81400 Channel or data source exception.
81404 Channel or data source does not exist.