RabbitMQ and EasyNetQ

Presentation given to the Hampton Roads .NET Users Group January 2013

Transcript

1. RabbitMQ and EasyNetQ Ken Taylor (@taylorka) reQuire LLC “Messaging that just works”
3. RabbitMQ: Who, What? • Developed by SpringSource • Written in Erlang • Message Broker (MOM) • Advanced Message Queuing Protocol (AMQP)
4. RabbitMQ: Who, What? • NASA NEBULA Cloud Computing • AMQP Sponsors –Microsoft –Bank of America –JPMorgan Chase –Et. Al.
6. RabbitMQ: Why? • Distributed • Asynchronous • Easy to use • Highly fault tolerant
7. RabbitMQ: Why? "The world is concurrent. Things in the world don't share data. Things communicate with messages. Things fail.“ - Joe Armstrong
8. RabbitMQ: The Basics • Exchanges • Queues • Routing • Channels • Virtual Hosts
9. Mailbox, Postman & Post office
10. Exchange Types • Direct • Fanout • Topic • Headers
11. Direct Exchange
13. Headers exchange routing • Ignores routing key • Headers attributes used for routing • Can bind a queue using one or more headers • Can route on other values – Integer – Hash/Dictionary – Others
14. Topic exchange routing • Routing to 1 or more queues – Message routing key – Pattern for queue binding • Multicast Routing • Consumers choose message to receive
15. Queues • Store messages • Consumed by applications • Have properties – Durable – Exclusive – Auto-delete • Declared before use
16. Channels & Virtual Hosts • Channels – Lightweight connections that share a single TCP connection • Virtual Hosts – Allows broker to host multiple environments – Similar to virtual hosts on IIS
17. EasyNetQ: Who, What? • Open source (easynetq.com) • Written by Mike Hadlow – github.com/mikehadlow • NuGet Package • Sponsored by 15below.com
18. EasyNetQ: Who, What? • Simple .NET API • Opinionated Implementation – Trades flexibility for simplicity • Simple conventions – Messages should be represented by .NET types. – Messages should be routed by their .NET type.
19. EasyNetQ: Why? • Easy to install • Less code • Serializes to JSON • Simple conventions DEMO
20. How can I use it today? • Download Erlang OTP – Erlang.org • Download RabbitMQ – Rabbitmq.com • Install EasyNetQ with NuGet – “Install-Package EasyNetQ”
22. Questions? • Important Links – Rabbitmq.com – Erlang.org – EasyNetq.com • About Me – Ken Taylor (Twitter @taylorka) – Switchspan.com