Hands-On RAG with LangChain: Build Real-World Projects — 90% Off Coupon
Master Retrieval-Augmented Generation by building practical, production-ready applications with LangChain
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Course Title: Hands-On RAG with LangChain: Build Real-World Projects
Provider: Udemy (Listed via CoursesWyn)
Instructor: Bharath Thippireddy
Coupon Verified On: April 5, 2026
Difficulty Level: All Levels
Category: IT & Software
Subcategory: Retrieval Augmented Generation (RAG)
Duration: 3h of on-demand video
Language: English
Access: Lifetime access to all course lectures and updates
Certificate: Official certificate of completion issued by Udemy upon finishing all course requirements
Top Learning Outcomes: Set up PostgreSQL with the pgvector extension to enable efficient vector search · Build an end to end RAG pipeline connecting Large Language Models LLMs with PostgreSQL · Implement a RAG pipeline step-by-step: retrieval, context injection, and grounded LLM responses.
Prerequisites: Basic Python knowledge (functions, imports, virtual environments). · Familiarity with APIs and JSON is helpful but not mandatory. · An OpenAI API key · Docker basics are a plus, but we’ll cover the commands you need. · Curiosity to build real-world AI apps using vector databases and LLMs. · Visual Studio Code,Docker,PGAdmin
Price: $9.99 with coupon / Regular Udemy price: $99.99. Applying this coupon saves you $90.00 (90% OFF).
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What You'll Learn
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Requirements
Please review the following prerequisites to ensure you have the necessary tools and foundational knowledge for this training.
Basic Python knowledge (functions, imports, virtual environments).
Familiarity with APIs and JSON is helpful but not mandatory.
An OpenAI API key
Docker basics are a plus, but we’ll cover the commands you need.
Curiosity to build real-world AI apps using vector databases and LLMs.
Visual Studio Code,Docker,PGAdmin
About This Course
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- Real-World Project: Build two end-to-end RAG Projects on Company Data and E-Commerce Semantic Search.
- Caching Strategies: Use embedding and response caching to reduce cost, latency, and improve efficiency.
- Indexing: Explore Flat, IVF Flat, HNSW, and disk-based indexes; learn which one to use for your dataset.
- Reranking: Improve answer precision using similarity scores, cross-encoders, and LLM-based reranking.
- Evaluations (Evals & Ragas): Measure faithfulness, relevance, and retrieval quality with Ragas metrics.
- Metadata: Use metadata filters to make retrieval precise, context-aware, and production-ready.
- It’s hands-on — you won’t just learn theory; you’ll build working RAG pipelines.
- You’ll learn best practices for scaling from demo to production.
- Content is designed for real-world applications in enterprise, startups, and research.
- You’ll walk away with code, skills, and confidence to build your own RAG-powered apps.
- Developers and data scientists interested in LangChain and LLM applications.
- AI/ML engineers who want to deploy production-ready RAG systems.
- Professionals curious about vector databases, embeddings, and retrieval systems.
- Anyone who wants to go beyond ChatGPT and build AI that leverages their own data.
Meet Your Instructor
Academic background and professional track record of the subject matter expert responsible for this curriculum.
Bharath Thippireddy
Verified Architect
A global leader with specialized excellence in IT & Software. Instructors are vetted for curriculum quality, responsiveness, and consistent student success across the Udemy platform.
Course Comparison
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| Feature Benchmarks | This Verified Offer | Global Standard |
|---|---|---|
| Cost Verification | FREE (100% Validated) | Fixed Subscription Fee |
| Enrollment Type | Professional Lifetime Access | Limited Time Ownership |
| Certification Award | Included with Access Code | Required Add-on Fee |
Expert Review
"After auditing the curriculum depth and verifying the live access protocol, Hands-On RAG with LangChain: Build Real-World Projects stands as an essential career asset. For a verified cost of $0, the return-on-learning ratio far exceeds commercial alternatives."
✅ Strategic Advantages
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Official Certificate: Credential generated at no cost.
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Mobile Friendly: Full access via smart TV & mobile.
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Expert Pacing: Modular design for professional schedules.
❌ Considerations
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Technical Depth: Requires focused 10+ hours study.
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Tool Prep: Certain labs require proprietary software setups.
Course Rating
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Andrew Derek
Expert ReviewerAndrew Derek is a lead editor and course analyst at CoursesWyn with over 8 years of experience in online education and digital marketing. He meticulously audits every Udemy coupon and course syllabus to ensure students get the highest quality learning materials at the best possible price.
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