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Alibaba Cloud Model Studio:ListChunks

Last Updated:Nov 28, 2024

For unstructured knowledge base, obtains the details of all chunks of a specified document; for structured knowledge base, obtains the details of all chunks.

Operation description

  • Before you call this operation, make sure that your knowledge base is created and is not deleted. That is, the primary key ID of the knowledge base IndexId is valid.
  • This interface is idempotent.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • The required resource types are displayed in bold characters.
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
sfm:ChunkListlist
*All Resources
*
    none
none

Request syntax

POST /{WorkspaceId}/index/list_chunks HTTP/1.1

Request parameters

ParameterTypeRequiredDescriptionExample
WorkspaceIdstringYes

The ID of the workspace to which the knowledge base belongs. To view the workspace ID, you can click the Workspace Details icon in the upper-left corner on the homepage of the console.

ws_3AXoiweeTyTd03IN
bodyobjectNo

The body of the request parameters.

FieldsarrayNo

An array of field names. This parameter is used to filter non-private fields (prefixed with_underscores) in the Metadata parameter returned by this operation. By default, this parameter is left empty, which means all non-private fields in the Metadata parameter are returned. If you only want specified non-private fields, such as title, set this parameter to title.

stringNo

The name of the field.

name
FiledstringNo

The primary key ID of the document. This parameter is not required for structured knowledge base, but is required for unstructured knowledge base. To view the ID, you can click the ID icon next to the file name on the Data Management page. You can filter returned chunks by the document ID. This parameter is left empty by default.

file_5f03dfea56da4050ab68d61871fc4cb3_10151493
IndexIdstringYes

The primary key ID of the knowledge base, which is the Data.Id parameter returned by the CreateIndex operation.

otoru9en4v
PageNumintegerNo

The number of the pages to return. Pages start from page 1. Default value: 1.

1
PageSizeintegerNo

The number of chunks to display on each page. Maximum value: 100. Default value: 10.

10

Response parameters

ParameterTypeDescriptionExample
object
Codestring

The error code.

Index.InvalidParameter
Dataobject

The data returned.

Nodesarray<object>

The list of chunks.

nodesobject

The chunk object.

Metadataany

The metadata map of the chunk.

Scoredouble

The similarity score of the chunk.

0.3
Textstring

The text of the chunk.

Totallong

The total number of chunks returned.

16
Messagestring

The error message.

Required parameter(%s) missing or invalid, please check the request parameters.
RequestIdstring

The request ID.

8F97A63B-55F1-527F-9D6E-467B6A7E8CF1
Statusstring

The HTTP status code returned.

200
Successboolean

Indications whether the API call is successful. Valid values:

  • true
  • false
true

Examples

Sample success responses

JSONformat

{
  "Code": "Index.InvalidParameter",
  "Data": {
    "Nodes": [
      {
        "Metadata": "",
        "Score": 0.3,
        "Text": ""
      }
    ],
    "Total": 16
  },
  "Message": "Required parameter(%s) missing or invalid, please check the request parameters.",
  "RequestId": "8F97A63B-55F1-527F-9D6E-467B6A7E8CF1",
  "Status": "200",
  "Success": true
}

Error codes

For a list of error codes, visit the Service error codes.