message-utils.ts25 lines · main
| 1 | import type { UIMessage } from 'ai' |
| 2 | |
| 3 | /** |
| 4 | * Prepares messages for API transmission by cleaning and limiting history |
| 5 | */ |
| 6 | export function prepareMessagesForAPI(messages: UIMessage[]): UIMessage[] { |
| 7 | // [Joshen] Specifically limiting the chat history that get's sent to reduce the |
| 8 | // size of the context that goes into the model. This should always be an odd number |
| 9 | // as much as possible so that the first message is always the user's |
| 10 | const MAX_CHAT_HISTORY = 7 |
| 11 | |
| 12 | const slicedMessages = messages.slice(-MAX_CHAT_HISTORY) |
| 13 | |
| 14 | // Filter out results from messages before sending to the model |
| 15 | const cleanedMessages = slicedMessages.map((_message) => { |
| 16 | const message = _message as UIMessage & { results?: unknown } |
| 17 | const cleanedMessage = { ...message } as UIMessage & { results?: unknown } |
| 18 | if (message.role === 'assistant' && message.results) { |
| 19 | delete cleanedMessage.results |
| 20 | } |
| 21 | return cleanedMessage as UIMessage |
| 22 | }) |
| 23 | |
| 24 | return cleanedMessages |
| 25 | } |