Hands-On Course

Hands on LangChain

Master LangChain for building production-ready RAG systems. Learn document loaders, embeddings, vector stores, chains, and agents through 10+ hands-on projects.

6
Weeks
18
Modules
10+
Projects
100%
Hands-On

Course Overview

A comprehensive 6-week hands-on course on LangChain. Learn to build production-ready RAG systems from scratch, covering all components from document loading to agentic systems.

Production-Ready RAG

Build complete RAG systems from document loading to answer generation. Learn best practices for production deployment.

Comprehensive Coverage

Master document loaders, text splitters, embeddings, vector stores, retrievers, chains, and agents. Everything you need for RAG.

Hands-On Projects

Build 10+ real-world projects including document Q&A systems, multi-source RAG, web scraping RAG, and agentic assistants.

Real-World Applications

Learn to build document Q&A systems, knowledge bases, chatbots, and agentic AI assistants using LangChain.

Multiple Vector Stores

Work with FAISS, Chroma, Pinecone, Weaviate, and more. Learn when to use each and how to optimize performance.

Advanced Techniques

Master advanced RAG techniques including MMR retrieval, multi-query retrieval, re-ranking, and chain types (stuff, map_reduce, refine).

6-Week Curriculum

A structured 6-week program covering all aspects of LangChain for RAG systems. Each week includes hands-on projects and practical exercises.

Week 1: LangChain Foundations & Document Loading

01

Module 1: Introduction to LangChain

LangChain architecture, core concepts, installation, and setup. Understanding chains, components, and the LangChain ecosystem.

Project:

Setup LangChain environment and build your first simple chain

02

Module 2: Document Loaders

PyPDFLoader, TextLoader, CSVLoader, DirectoryLoader, WebBaseLoader. Loading documents from various sources.

Project:

Build a multi-format document loader system

03

Module 3: Text Splitting Strategies

RecursiveCharacterTextSplitter, chunk size, overlap, separators. Best practices for document chunking.

Project:

Implement optimal chunking strategy for different document types

Week 2: Embeddings & Vector Stores

04

Module 4: Embeddings Deep Dive

OpenAIEmbeddings, HuggingFaceEmbeddings, embedding models, batch processing, cost optimization.

Project:

Compare different embedding models and optimize for your use case

05

Module 5: Vector Stores - FAISS & Chroma

FAISS for local storage, Chroma for persistent storage, indexing strategies, similarity search.

Project:

Build a document search system with FAISS and Chroma

06

Module 6: Cloud Vector Stores

Pinecone, Weaviate, Qdrant. Managed vector stores, scaling, production deployment considerations.

Project:

Deploy a scalable RAG system using Pinecone

Week 3: Retrievers & RAG Chains

07

Module 7: Retrievers & Search Strategies

Similarity search, MMR (Maximal Marginal Relevance), search parameters, k selection, fetch_k optimization.

Project:

Build a retriever with MMR for diverse document retrieval

08

Module 8: RetrievalQA Chain

Building your first RAG chain, RetrievalQA.from_chain_type, prompt customization, source documents.

Project:

Build a complete document Q&A system

09

Module 9: Chain Types - Stuff, Map_Reduce, Refine

Understanding different chain types, when to use each, handling long documents, cost considerations.

Project:

Compare chain types and optimize for your document length

Week 4: Advanced RAG Techniques

10

Module 10: Multi-Query Retrieval

Query expansion, generating multiple queries, combining results, improving retrieval quality.

Project:

Implement multi-query retrieval for better answer quality

11

Module 11: Re-ranking & Hybrid Search

Re-ranking retrieved documents, hybrid search (semantic + keyword), improving answer relevance.

Project:

Build a hybrid search system with re-ranking

12

Module 12: Custom Prompts & Memory

Custom prompt templates, conversation memory, chat history, context window management.

Project:

Build a conversational RAG system with memory

Week 5: LangChain Agents

13

Module 13: Introduction to Agents

Agent architecture, tools, ReAct pattern, agent types, decision-making process.

Project:

Build your first LangChain agent with tools

14

Module 14: Building Custom Tools

Creating custom tools, tool descriptions, tool selection, error handling in agents.

Project:

Create custom tools and build a specialized agent

15

Module 15: RAG Agents

Combining RAG with agents, agentic RAG workflows, multi-step reasoning, tool-augmented RAG.

Project:

Build an agentic RAG system with multiple tools

Week 6: Production Deployment & Capstone

16

Module 16: Performance Optimization

Optimizing retrieval speed, batch processing, caching strategies, cost optimization, monitoring.

Project:

Optimize a RAG system for production performance

17

Module 17: Production Deployment

Deploying RAG systems, API design, error handling, logging, monitoring, scaling strategies.

Project:

Deploy a RAG system as a production API

18

Module 18: Capstone Project

Build a complete production-ready RAG system from scratch. Multi-source documents, advanced retrieval, agentic capabilities.

Capstone:

Enterprise Knowledge Base with RAG and Agentic Capabilities

Technical Requirements

Everything you need to get started with LangChain.

Prerequisites

  • Python 3.8 or higher
  • Basic understanding of Python programming
  • Familiarity with LLMs and embeddings (helpful but not required)
  • API keys for OpenAI or other LLM providers

Required Libraries

pip install langchain

pip install langchain-openai

pip install langchain-community

pip install faiss-cpu

pip install chromadb

Additional libraries covered in course

Ready to Master LangChain?

Join the Hands on LangChain course and build production-ready RAG systems. Master all components from document loading to agentic systems.

Enroll Now