Function: modelMessageToUIMessage()#

function modelMessageToUIMessage(modelMessage, id?): UIMessage;

Defined in: packages/ai/src/activities/chat/messages.ts:396

Convert a ModelMessage to UIMessage

This conversion creates a parts-based structure:

• content field → TextPart

• toolCalls array → ToolCallPart[]

• role="tool" messages should be converted separately and merged

Parameters#

modelMessage#

ModelMessage

The ModelMessage to convert

id?#

string

Optional ID for the UIMessage (generated if not provided)

Returns#

UIMessage

A UIMessage with parts