Get ChatMessages from Workflow session

[twenzel]

I've a workflow as agent with a custom agent session store (sql).

I want to retrieve all chat messages from this agent/store in order to show these in a UI.

Is there a possibility to extract ChatMessages from a AgentSession (or in particular a WorkflowSession)?

[VolzM]

@twenzel Have you found a solution?

[twenzel]

This is what I currently use:

/// <summary>
	/// Gets the ChatMessages from the session.
	/// </summary>
	/// <param name="session">The session to get the internal messages from.</param>
	/// <param name="agent">The agent of the session.</param>
	/// <returns></returns>
	public static async Task<List<ChatMessage>> ToChatMessages(this AgentSession session, AIAgent agent)
	{
		if (session.TryGetInMemoryChatHistory(out var chatHistory))
			return chatHistory;

		var messages = session.GetService<IList<ChatMessage>>();
		if (messages != null)
			return messages.ToList();

		messages = agent.GetService<IList<ChatMessage>>();
		if (messages != null)
			return messages.ToList();

		var historyProvider = agent.GetService<ChatHistoryProvider>();
		if (historyProvider is InMemoryChatHistoryProvider memoryChatHistoryProvider)
			return memoryChatHistoryProvider.GetMessages(session);

		var root = await agent.SerializeSessionAsync(session, JsonSerializerOptions.Web);

		var customSession = JsonSerializer.Deserialize<SerializedSession>(root, JsonSerializerOptions.Web);

		return customSession?.ChatHistoryProviderState?.Messages ?? [];
	}

[VolzM]

Hmm doesn't work for the WorkflowSession. I will take a closer look thank you :)