Is this a video course?

No. This is an interactive, slide-based learning platform. Each lesson has rich text, animated diagrams, live code editors, and quizzes. You learn by reading, interacting, and doing, not by watching videos passively.

How long do I have access?

Forever. Both pricing tiers are one-time payments with lifetime access. This includes all current 766 lessons and any future content we add.

What level of experience do I need?

None. We start from absolute basics like 'What is latency?' and build up to distributed consensus protocols. The Foundation level assumes zero prior knowledge of system design.

How much does the system design course cost?

7.99 US dollars for lifetime access globally, or 499 Indian rupees for lifetime access in India. One-time payment, no subscription, no hidden fees. 11 lessons are free with no signup required.

What technologies are covered?

Everything from DNS and load balancers to Kubernetes, Kafka, distributed databases, consensus protocols, stream processing, security architecture, and observability. We cover principles and real-world implementations used at Netflix, Google, Amazon, Uber, Stripe, and more.

Is this useful for system design interview preparation?

Yes. The lessons are structured around the exact topics asked in system design interviews at FAANG and top-tier companies. Interactive diagrams help you practice whiteboard-style explanations. Covers everything from URL shortener design to distributed payment systems.

How is this different from ByteByteGo or Educative?

766 interactive lessons (4x more than most competitors), 16 different diagram types that build step by step, real production examples from Netflix, Google, Amazon, Uber, and Stripe, and lifetime access for a one-time payment of $7.99 instead of annual subscriptions costing 100 to 200 dollars per year.

What is the relationship between Swagger and OpenAPI?

Swagger is the tooling system; OpenAPI is the specification standard, Swagger was the original name for both the spec and the tools. In 2016, the specification was donated to the Linux Foundation and renamed OpenAPI. 'Swagger' now refers to the tools (Swagger UI, Swagger Editor, etc.) that work with the OpenAPI specification.

A frontend team and backend team need to build a new feature simultaneously. The API has 15 endpoints. Which approach makes the most sense?

Write the OpenAPI spec first (design-first), generate mocks for frontend, build both in parallel, Design-first is the right call here. Write the OpenAPI spec, have both teams review it, then the frontend team uses a mock server (like Prism) while the backend implements the real endpoints. Both teams work in parallel with a shared contract. This is what companies like Stripe and Netflix do.

What is the biggest risk with API documentation?

The documentation becomes stale and no longer matches the actual API, Stale documentation is worse than no documentation. It gives consumers false confidence that they understand the API, leading to integration bugs. The solution is to use validation middleware that enforces the spec at runtime, if the spec and code diverge, tests break immediately.

API Documentation (Swagger/OpenAPI)

Name: System Design Masterclass
Availability: InStock

in Core Fundamentals

This lesson is part of the full System Design Masterclass. Unlock it along with 765 other lessons for a one-time payment.

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Foundation lessons free, try before you buy

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India

₹999₹499/lifetime

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Foundation lessons free, try before you buy

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“The interactive diagrams alone are worth way more than the price.”

Anish K., Senior Engineer at a Bengaluru startup

All 766 interactive lessons

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Live code editors with real execution

Quizzes with instant feedback

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Lifetime access, all future content included

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