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 content-based routing?

Inspecting message content to determine which destination queue or service should receive it, Content-based routing inspects the content (attributes, headers, or payload) of each message to determine its destination. The routing decision is based on the data inside the message, not just its topic or queue.

What is the main risk of building a custom router service for content-based routing?

The router becomes a single point of failure and a bottleneck, and every message must pass through it, A custom router service is a single component that all messages must flow through. If it crashes or slows down, all message routing stops. Where possible, use broker-native routing (exchange patterns, filter policies) to distribute the routing logic to the infrastructure layer.

Why is header-based routing less coupled than content-based routing?

The router only inspects message headers, not the body. Schema changes to the payload are invisible to the router., Content-based routing parses the full message body. Any schema change can break the routing rules. Header-based routing treats the body as opaque and only looks at metadata headers. The header contract is separate from the payload contract, so internal schema evolution doesn't affect routing.

Content-Based Routing

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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