YouTube Channel
Be sure to check out PhatBoyG’s YouTube channel for videos on MassTransit
MassTransit
MassTransit is the messaging framework trusted by companies around the globe to build reliable and scalable distributed applications on .NET.
Whether you’re a CTO evaluating architecture options or a developer creating your first message consumer, this documentation gives you everything you need to design systems that are fast, fault-tolerant, and future-proof.
This site is your complete guide to the framework: the concepts, the guides, the configuration, and the best practices that help MassTransit power production workloads across finance, logistics, government, retail, IoT, and more.
Why MassTransit?
Section titled “Why MassTransit?”Modern applications demand more than simple request/response calls. They require:
- Durable messaging
- Loosely coupled service boundaries
- Predictable scalability
- Workflow orchestration and state management
- Transport portability between RabbitMQ, Azure Service Bus, Amazon SQS, and SQL
- End-to-end observability
MassTransit gives you a complete, battle-tested feature set that reduces architectural risk and increases development velocity. You focus on your domain; MassTransit handles the plumbing.
What You’ll Learn Here
Section titled “What You’ll Learn Here”The documentation is organized to help you learn the why, what, and how of message-driven design:
Start with the Concepts
Section titled “Start with the Concepts”Understand the big ideas behind message-driven systems:
- Message contracts
- Consumers and endpoints
- Sagas and state machines
- Routing slips
- Message topology
- Transport differences
These pages give you the vocabulary and mental models to design a distributed system that works rather than one that just compiles.
Follow the Guides
Section titled “Follow the Guides”Once the ideas click, the Guides show you:
- How to create messages
- How to build consumers
- When to publish vs send
- How to design multi-step workflows
- How to test your message flows
- How to create resilient architectures with retries and outbox patterns
Practical, hands-on examples — ideal for developers building real features.
Apply it in the Configuration Section
Section titled “Apply it in the Configuration Section”This is where everything becomes concrete:
- Transport configuration (RabbitMQ, ASB, SQL Transport, etc.)
- Bus setup and dependency injection
- Retry, fault, and scheduling behavior
- Middleware and pipeline configuration
If Concepts explains the architecture, and Guides show you how to build with it, Configuration shows you exactly how to wire it for production.
Built for Teams That Need More Than Just Messaging
Section titled “Built for Teams That Need More Than Just Messaging”MassTransit provides a unified abstraction layer over multiple message brokers, but it is not “just another transport abstraction.”
It is a complete application framework for building:
- Event-driven microservices
- Orchestrated or choreographed workflows
- Reliable inter-service communication
- High-throughput distributed pipelines
- Message-first enterprise systems
Engineers love it for the productivity. Architects love it for the predictability. Businesses love it for the resilience and long-term stability.
Ready to Begin?
Section titled “Ready to Begin?”If you’re new to MassTransit:
- Start with Concepts to understand the architecture
- Follow the Guides to build something real
- Use Configuration to prepare your system for production
If you’re experienced:
- Jump directly into Configuration pages for syntax and examples
- Browse the saga state machine and routing slip sections when designing advanced scenarios
- Explore the various transports to compare broker capabilities
Your team deserves infrastructure that’s reliable, maintainable, and transparent.
Start exploring and see why MassTransit has become the most widely adopted .NET messaging framework.
Additional Resources
Section titled “Additional Resources”Discord
The Discord channel is a great place to ask questions and chat with other users.