Claude Platform Docs

Batches

Create a Message Batch
client.Messages.Batches.New(ctx, params) (*MessageBatch, error)
POST/v1/messages/batches

Send a batch of Message creation requests.

Retrieve a Message Batch
client.Messages.Batches.Get(ctx, messageBatchID, query) (*MessageBatch, error)
GET/v1/messages/batches/{message_batch_id}

This endpoint is idempotent and can be used to poll for Message Batch completion. To access the results of a Message Batch, make a request to the results_url field in the response.

List Message Batches
client.Messages.Batches.List(ctx, params) (*Page[MessageBatch], error)
GET/v1/messages/batches

List all Message Batches within a Workspace. Most recently created batches are returned first.

Cancel a Message Batch
client.Messages.Batches.Cancel(ctx, messageBatchID, body) (*MessageBatch, error)
POST/v1/messages/batches/{message_batch_id}/cancel

Batches may be canceled any time before processing ends. Once cancellation is initiated, the batch enters a canceling state, at which time the system may complete any in-progress, non-interruptible requests before finalizing cancellation.

Delete a Message Batch
client.Messages.Batches.Delete(ctx, messageBatchID, body) (*DeletedMessageBatch, error)
DELETE/v1/messages/batches/{message_batch_id}
Retrieve Message Batch results
client.Messages.Batches.Results(ctx, messageBatchID, query) (*MessageBatchIndividualResponse, error)
GET/v1/messages/batches/{message_batch_id}/results

Streams the results of a Message Batch as a .jsonl file.

Models
type DeletedMessageBatch struct { Type: "message_batch_deleted"; ID }
Type MessageBatchDeleted

Deleted object type.

For Message Batches, this is always "message_batch_deleted".

defaultmessage_batch_deleted
ID string

ID of the Message Batch.

type MessageBatch struct { Type: "message_batch"; ID; ArchivedAt; /* 7 more */ }
type MessageBatchCanceledResult struct { Type: "canceled" }
Type Canceled
defaultcanceled
type MessageBatchErroredResult struct { Type: "errored"; Error }
Type Errored
defaulterrored
Error ErrorResponse
Type Error
defaulterror
Error ErrorObjectUnion
One of the following:
RequestID string
type MessageBatchExpiredResult struct { Type: "expired" }
Type Expired
defaultexpired
type MessageBatchIndividualResponse struct { CustomID; Result }

This is a single line in the response .jsonl file and does not represent the response as a whole.

CustomID string

Developer-provided ID created for each request in a Message Batch. Useful for matching results to requests, as results may be given out of request order.

Must be unique for each request within the Message Batch.

Result MessageBatchResultUnion

Processing result for this request.

Contains a Message output if processing was successful, an error response if processing failed, or the reason why processing was not attempted, such as cancellation or expiration.

One of the following:
type MessageBatchRequestCounts struct { Canceled; Errored; Expired; /* 2 more */ }
Canceled int64

Number of requests in the Message Batch that have been canceled.

This is zero until processing of the entire Message Batch has ended.

default0
Errored int64

Number of requests in the Message Batch that encountered an error.

This is zero until processing of the entire Message Batch has ended.

default0
Expired int64

Number of requests in the Message Batch that have expired.

This is zero until processing of the entire Message Batch has ended.

default0
Processing int64

Number of requests in the Message Batch that are processing.

default0
Succeeded int64

Number of requests in the Message Batch that have completed successfully.

This is zero until processing of the entire Message Batch has ended.

default0
type MessageBatchResultUnion interface{…}

Processing result for this request.

Contains a Message output if processing was successful, an error response if processing failed, or the reason why processing was not attempted, such as cancellation or expiration.

One of the following:
type MessageBatchSucceededResult struct { Type: "succeeded"; Message }
Type Succeeded
defaultsucceeded
Message Message