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 | EnOS Cloud | EnOS Edge |
|---|---|---|---|
| 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. |