Welcome to the next step in building your personal tutor with DeepSeek! In previous lessons, you learned how to send queries to DeepSeek's language model, customize model parameters, maintain session history, and personalize your AI tutor using system prompts — all in Go. Now, you'll learn how to manage multiple tutoring sessions at once. This is essential for applications that serve several students simultaneously, such as an online tutoring platform. By the end of this lesson, you'll be able to create and manage multiple tutoring sessions using Go, setting the foundation for scalable educational applications.

In a tutoring application, each educational interaction should be treated as a separate session. To achieve this in Go, we use a map to store all active sessions, where each session is identified by a unique session ID. We generate these unique IDs using the github.com/google/uuid package. Each session's history is stored as a slice of Message structs.

Here's how you can set up session management in Go:

In this setup, we define a map called tutoringSessions that stores all active tutoring sessions. Each key in the map is a unique session ID (a string), and each value is a slice of Message structs that represents the conversation history for that session. We initialize this map in the function, which runs automatically when the package is loaded.

Once a tutoring session is established, you can send queries and receive explanations from DeepSeek. In Go, you append each new message to the session's slice of Message structs. When sending a query, you pass the entire session history to the AI to maintain context.

It's important to remember that language models have a context window — they can process only a limited number of messages at once. If a session's history grows too large, you may need to implement a strategy to trim older messages while preserving important context.

Here's how you can implement query handling in Go, using the provided SendQuery function:

This function ensures that each session maintains its own history, allowing for contextually relevant responses from the AI tutor.

Managing multiple sessions is straightforward in Go using maps and slices. Each session is independent, and you can create, query, and update them as needed. Below is a complete example demonstrating how to create two separate sessions and interact with each one:

Sample output:

In this lesson, you learned how to manage multiple tutoring sessions in Go using DeepSeek's API. You saw how to create unique sessions, maintain session history, and handle multiple sessions simultaneously using Go's map and slice types. These skills are essential for building scalable educational applications that can support many students at once. As you move on to practice exercises, try creating and managing your own tutoring sessions to reinforce your understanding and prepare for more advanced AI development. Keep up the great work as you continue building your personal tutor with DeepSeek!