StreamEventType

Defined in the streaming module.

Rust AI Agent SDK Types of streaming events emitted during LLM response streaming.

Fields

Name	Type	Description
`Before`	`variant`	-
`API`	`variant`	-
`call`	`variant`	-
`is`	`variant`	-
`made`	`variant`	-
`RequestStart`	`variant`	Before API call is made
`When`	`variant`	-
`HTTP`	`variant`	-
`headers`	`variant`	-
`arrive`	`variant`	-
`HeadersReceived`	`variant`	When HTTP headers arrive
`First`	`variant`	-
`content`	`variant`	-
`delta`	`variant`	-
`received`	`variant`	-
`FirstToken`	`variant`	First content delta received (TTFT marker)
`Text`	`variant`	-
`content`	`variant`	-
`delta`	`variant`	-
`DeltaText`	`variant`	Text content delta
`Tool`	`variant`	-
`call`	`variant`	-
`delta`	`variant`	-
`DeltaToolCall`	`variant`	Tool call delta
`Tool`	`variant`	-
`call`	`variant`	-
`complete`	`variant`	-
`ToolCallEnd`	`variant`	Tool call complete
`Final`	`variant`	-
`content`	`variant`	-
`delta`	`variant`	-
`LastToken`	`variant`	Final content delta
`Stream`	`variant`	-
`completed`	`variant`	-
`successfully`	`variant`	-
`StreamEnd`	`variant`	Stream completed successfully
`Error`	`variant`	-
`during`	`variant`	-
`streaming`	`variant`	-
`Error`	`variant`	Error during streaming