mirror of
https://github.com/vxcontrol/langchaingo.git
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Travis Cline
dff679c481
docs: complete basic chat application tutorial with progressive examples Completely rewrite the basic chat application tutorial with a structured, step-by-step approach: **Tutorial Documentation**: - Restructure tutorial into 6 clear progressive steps - Add proper setup instructions and prerequisites - Include code examples for each step with explanations - Improve clarity and flow from basic to advanced concepts **Complete Working Example**: - Add `examples/tutorial-basic-chat-app/` with full implementation - Include separate files for each tutorial step (step3-step6) - Add comprehensive README with usage instructions - Support multiple execution modes via command-line arguments **Progressive Implementation Steps**: - Step 3: Basic single-shot LLM interaction - Step 4: Interactive chat loop without memory - Step 5: Chat with manual conversation memory management - Step 6: Advanced chat using chains with automatic memory **Features Added**: - Go module setup with proper dependencies - Error handling and graceful exit functionality - Multiple chat implementations demonstrating different approaches - Clear documentation linking tutorial to working code - Support for running individual steps or complete implementation The tutorial now provides a complete learning path from basic LLM usage to sophisticated conversation management using LangChainGo's chains and memory systems.
58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
package main
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import (
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"bufio"
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"context"
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"fmt"
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"log"
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"os"
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"strings"
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"github.com/tmc/langchaingo/chains"
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"github.com/tmc/langchaingo/llms/openai"
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"github.com/tmc/langchaingo/memory"
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)
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// Step 6: Advanced Chat with Chains
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func advancedChat() {
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// Initialize LLM
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llm, err := openai.New()
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if err != nil {
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log.Fatal(err)
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}
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// Create conversation memory
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chatMemory := memory.NewConversationBuffer()
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// Create conversation chain
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// The built-in conversation chain includes a default prompt template
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// and handles memory automatically
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conversationChain := chains.NewConversation(llm, chatMemory)
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ctx := context.Background()
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reader := bufio.NewReader(os.Stdin)
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fmt.Println("Advanced Chat Application (type 'quit' to exit)")
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fmt.Println("----------------------------------------")
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for {
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fmt.Print("You: ")
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input, _ := reader.ReadString('\n')
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input = strings.TrimSpace(input)
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if input == "quit" {
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break
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}
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// Run the chain with the input
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result, err := chains.Run(ctx, conversationChain, input)
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if err != nil {
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fmt.Printf("Error: %v\n", err)
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continue
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}
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fmt.Printf("AI: %s\n\n", result)
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}
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fmt.Println("Goodbye!")
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} |