Stream Event Type • Rust AI Agent SDK

StreamEventType: Types of streaming events emitted during LLM response streaming.

StreamEventType

Defined in the streaming module.

Rust AI Agent SDK

Types of streaming events emitted during LLM response streaming.

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

praisonai/src/streaming/mod.rs at line 0