The sendMessage method in the Chat class is used to send a message to a chat conversation. This method automatically adapts to provide either a stream of responses or a single, complete response based on how it is called.

Key Features


  • Conversational Memory: Every message sent and the corresponding response from the language model are stored, ensuring a continuous and coherent conversation flow by keeping track of all previous exchanges.

Flexible Response Handling

  • Streaming Mode: Direct calls to sendMessage return a stream for real-time, incremental responses. Useful for lengthy or real-time interactions. Requires event listeners like on('data', callback).
  • Complete Mode: Using sendMessage with async/await or .then returns a promise for a single, full response, suitable for standard request-response scenarios.

Usage Examples

Non-Streaming Response

To receive a complete response after the message processing is finished, use sendMessage with async/await or .then. This will return a promise that resolves to a string containing the full response.

const chat = new Chat();

// Example using async/await
async function getCompleteResponse() {
  const answerString = await chat.sendMessage("Who was the first man to walk on the moon?");
  console.log("Non-Streaming Response:", answerString);

// Example using .then
chat.sendMessage("Who was the first man to walk on the moon?")
  .then(answerString => {
    console.log("Non-Streaming Response:", answerString);

Streaming Response

For a real-time, incremental response, simply call sendMessage without async/await or .then. This will return a stream of responses as they become available.

const chat = new Chat();

// Sending a message for streaming response
const responseStream = chat.sendMessage("Who was the first man to walk on the moon?");

responseStream.on('data', (data) => {
  console.log("Streaming Part of Response:", data);

What’s Next