LangChain Tutorial: Prompt Templates & Sequential Chains скачать в хорошем качестве

LangChain Tutorial: Prompt Templates & Sequential Chains

In our last video, we manually chained 3 OpenAI functions with 95 lines of code. Today, we're doing the same thing with LangChain in 30 lines. 🎯 What You'll Learn: Prompt Templates - Make your prompts reusable across projects Sequential Chains - Automate the function chaining from last video Industry-standard patterns for production AI workflows How to simplify without losing control 💻 Topics Covered: ✓ Why LangChain vs manual chaining ✓ Creating reusable prompt templates ✓ Building sequential chains step by step ✓ Same REST API workflow, cleaner code ✓ What's happening under the hood This is the industry standard way to build AI automation. After this video, you'll understand both the manual approach AND the framework that makes it production-ready. 📂 GitHub: https://github.com/nextgenqaofficial Chapters: 0:00 Introduction 1:04 Lang Chain Basics 2:18 Environment Setup 3:05 Prompt Template Basics 5:51 Single Variable Template 9:09 Multiple Variables Template 11:34 Using Prompt Template with Chain 15:45 Sequential Chain Basics 19:19 Two-Step Sequential Chain 25:45 Three-Step Sequential Chain 29:59 Conclusion and Next Steps 💡 About NextGenQA: I'm Soumyansh, AVP and Senior QA Engineer with 13+ years of experience. This channel focuses on AI-powered testing automation with practical, production-ready implementations. #LangChain #OpenAI #PythonAutomation #QAAutomation #AITesting #TestAutomation #PromptEngineering #SequentialChains #FunctionCalling #AIIntegration #ProductionCode #NextGenQA #PythonTutorial #MachineLearning #SoftwareTesting