while_reader.ts

while (true) {
    const result = await reader.read();
    if (result.done) {
      break;
    }
    const message = decoder.decode(result.value, { stream: true });
    message
      .split('data: ')
      .slice(1)
      .forEach((item) => {
        const event: Event = JSON.parse(item);
        if (event.type === 'chat_history') {
          const chatMessageEvent = event as ChatHistoryEvent;
          setDisplayedChatHistory(chatMessageEvent.value);
        }
        if (event.type === 'delta') {
          const chatMessageEvent = event as ChatMessageEvent;
          chatResponse += chatMessageEvent.value;
          setCurrentResponse(chatResponse);
        }
      });
}