Multi-turn chat

When you need a sustained conversation and want to control the session (e.g. for multiple users or threads), start a session explicitly and send messages to it by ID.

Start a session

string sessionId = await api.StartNewChatAsync();

You can pass an optional preset and/or your own session ID:

string sessionId = await api.StartNewChatAsync(preset: myPreset, sessionId: "user-123-conv-1");

Send messages to the session

Use SendMessageToSessionAsync with the session ID:

string reply1 = await api.SendMessageToSessionAsync(sessionId, "I want to plan a trip.");
string reply2 = await api.SendMessageToSessionAsync(sessionId, "Suggest three cities in Europe.");
string reply3 = await api.SendMessageToSessionAsync(sessionId, "Tell me more about the first one.");

The model sees the full conversation history for that session, so it can answer in context.

Multiple sessions

You can have several sessions (e.g. one per user or conversation) and send messages to any of them:

string sessionA = await api.StartNewChatAsync(sessionId: "conv-A");
string sessionB = await api.StartNewChatAsync(sessionId: "conv-B");

await api.SendMessageToSessionAsync(sessionA, "Topic A question.");
await api.SendMessageToSessionAsync(sessionB, "Topic B question.");

Remember that only one AsposeLLMApi instance is allowed per process; create it once and reuse it for all sessions.