LangChain and LangGraph Crash Course

Greg Lim connects LangChain application examples with introductory LangGraph workflows. Document chat and memory provide application context, while nodes and conditional graphs make control flow visible. It suits learners with basic programming experience who want a compact introduction and can add time for independent debugging beyond the recorded demonstrations.

What you will learn

• Explore document-chat and memory workflows.
• Build introductory graphs with explicit state.
• Understand multi-input and conditional graph behavior.

Who this suits

Basic programming experience is useful; inspect Python setup and model-API access before enrolling.

Before you enroll

Model APIs, search tools and hosting may cost extra. Check framework and model versions before reproducing recorded code. Use fictional data and restrict tool permissions while learning. Inspect state transitions, failures and retry behavior rather than judge an agent from one successful answer. Generated output and autonomous actions need validation; a project demonstration does not establish production reliability.

Udemy offers paid purchase or subscription access depending on the current course and region. Paid teaching courses provide completion certificates under Udemy’s policy. Check current access terms and any separate software or material costs before enrolling.

Put it into practice

Build a small graph with two possible routes and test an input for each route, recording the state changes rather than only the final message.

Source and review

This overview is based on the provider's published information, checked on 12 October 2026. It is an editorial assessment, not a claim that we completed the resource. Time filters are approximate study ranges; projects and exercises can take longer.

Where a formal level is unavailable, the level filter is an editorial estimate based on the published audience and requirements. Duration filters reflect the listed video time; exercises and independent practice can take longer.

View the curriculum and current access options at Udemy.

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Supporting provider sources

• support.udemy.com: supporting course information