Developing Distributed Applications with C# and ZeroMQ

Introduction

• Welcome
• What you should know
• How to use the exercise files

1. Building a Chat System

• Overview of ZeroMQ
• Primary concepts
• Warm-up exercise: Single-file application

2. Requests and Replies

• Sync vs. async two-way messaging
• Heartbeating – keeping track of peers
• Exercise 1a: Setting up the server
• Exercise 1b: Setting up the client

3. Broadcasting Messages

• Topically filtered one-way messaging
• Notifications – sharing information
• Exercise 2a: Publishing arrival/departure notices
• Exercise 2b: Subscribing to arrival/departure notices

4. Combining Channels

• Proxies
• Polling
• Slipping one-way messages into a two-way channel
• Exercise 3a: Extending the server to relay group messages
• Exercise 3b: Extending the client to send group messages

5. Sidebar: Troubleshooting

• Basic checklist for when things aren't working
• Extra exercise: Implementing a socket monitor

6. Extending Protocols

• Solving problems with messages versus adding new channels
• Exercise 4: Extending the client and server to support direct messages

Conclusion

• Going further