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 defines the fire-and-forget pattern?

The sender dispatches a message and continues immediately without waiting for a result, Fire-and-forget means the sender sends and moves on. No waiting, no response, no acknowledgment of processing. The sender's job is done the moment the message is dispatched.

After a user signs up, you need to send a welcome email. Should this be fire-and-forget or request-response?

Fire-and-forget, push the email to a queue and return the signup response immediately, The welcome email is not critical to the signup flow. The user doesn't need to wait for the email to be sent before seeing the signup success page. Push the email task to a queue (fire-and-forget with broker durability) and return the response immediately.

Netflix logs hundreds of billions of API events daily. Why do they use fire-and-forget for this?

Because blocking the API response on log writes would add unacceptable latency at their scale, Log data matters, but not enough to block the API response. Netflix publishes log events to Kafka asynchronously. The API response returns in milliseconds. Kafka's durability means the logs are almost never lost, but even if a few are dropped, that's far better than adding 50-100ms of latency to every API call for hundreds of millions of users.

Fire-and-Forget Pattern

Name: System Design Masterclass
Availability: InStock

in Messaging Event Systems

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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