Write Chunk File¶

Write file chunks to data source through a specified channel.

Prerequisites¶

Write channels are created and started in the organization.

Request Format¶

POST https://{apigw-address}/data-federation/v2.0/channels/write/{channelId}/chunk-file

Request Parameters (Header)¶

Name	Mandatory/Optional	Data Type	Description
Content-Type	Mandatory	String	Content or file type. The default value is application/json.

Request Parameters (URI)¶

Name	Location (Path/Query)	Mandatory/Optional	Data Type	Description
orgId	Query	Mandatory	String	The organization ID. How to get the orgId>>
channelId	Path	Mandatory	String	The channel ID.
dataSourceName	Query	Mandatory	String	The data source alias. Only HDFS data source is supported.

Request Parameters (Body)¶

Name	Mandatory/Optional	Data Type	Description
fileName	Mandatory	String	The name of the file to be written to the storage.
totalSize	Mandatory	Integer	The file size.
chunkOffset	Mandatory	Integer	The offset of the current chunk in the file.
chunkSize	Mandatory	Integer	The size of the current chunk (before Base64 encoding).
chunkData	Mandatory	String	The chunk data, with Base64 encoding.

Samples¶

Request Sample¶

url: https://{apigw-address}/data-federation/v2.0/channels/write/{channelId}/chunk-file?orgId={}&dataSourceName={}

method: POST

requestBody:
{
  "fileName": "ttt",
  "totalSize": "13",
  "chunkData": "dGVzdHRlc3R0dGVzdA==",
  "chunkSize": "13",
  "chunkOffset": "0"
}

Return Sample¶

{
  "msg": "OK",
  "code": 0,
  "submsg": ""
}

SDK Samples¶

You can access the SDK samples for data federation service on GitHub:

Java
Python