Load data in multiple parts by using the Cloud Object Storage API

With the Cloud Object Storage API, you can load data objects as large as 5 GB in a single PUT, and objects as large as 10 TB by loading the data into object storage as a set of parts which can be loaded independently in any order and in parallel. After all of the parts have been loaded, they are presented as a single object in Cloud Object Storage.

You can load files with these formats and mime types in multiple parts:

• application/xml
• application/pdf
• text/plain; charset=utf-8

To load a data object in multiple parts:

1. Initiate a multipart upload:

curl -X "POST" "https://(endpoint)/(bucket-name)/(object-name)?uploads"
 -H "Authorization: bearer (token)"

The value for bucket-name can be found on your project's General page on the Manage tab. Click Manage in IBM Cloud on the Watson Studio for the endpoint value. The value for the bearer token is retrieved via the IBM Cloud IAM API.

2. Load the parts by specifying arbitrary sequential part numbers and an UploadId for the object:

curl -X "PUT" "https://(endpoint)/(bucket-name)/(object-name)?partNumber=(sequential-integer)&uploadId=(upload-id)"
 -H "Authorization: bearer (token)"
 -H "Content-Type: (content-type)"

Replacecontent-type with application/xml, application/pdf or text/plain; charset=utf-8.

3. Complete the multipart load:

  curl -X "POST" "https://(endpoint)/(bucket-name)/(object-name)?uploadId=(upload-id)"
 -H "Authorization: bearer (token)"
 -H "Content-Type: text/plain; charset=utf-8"
 -d \$'<CompleteMultipartUpload>
         <Part>
           <PartNumber>1</PartNumber>
           <ETag>(etag)</ETag>
         </Part>
         <Part>
           <PartNumber>2</PartNumber>
           <ETag>(etag)</ETag>
         </Part>

4. Add your file to the project as an asset. From the Assets page of your project, click the Import assets button. Then from the Project files page, select the file you uploaded to your Cloud Object Storage and click Import.

Next steps

• Refining the data
• Analyzing the data and building models
• Publishing the data asset to a catalog

Learn more

• Storing large objects in Cloud Object Storage

Parent topic: Adding connections to projects