Abstract: Websockets and webhooks serve like a backbone of a modern real-time API system, providing a way to communicate in real-time changes or updates. During this talk I’ll introduce what websockets and webhooks are, why and for what they are useful, some of the security issues you need to be aware of and how to use Python to write a websocket client/server and a webhook producer/consumer. Especially for webhooks I’ll talk about the complexity of creating a reliable system that can scale to hundreds of webhooks, of the necessary retry policies you need to support and of the strategies you can put in place to alleviate slow or faulty consumers. About the speaker: Christian Barra is a Software Engineer, Tech Lead and international speaker living in Berlin. He’s the founder of AfterMachines, a company that provides a real-time platform for your applications. He also works as a consultant, providing training and consulting on backend applications and cloud infrastructure. He is an active member of the tech community in Berlin, conference organiser and a Python Software Foundation Fellow. You can follow him on twitter @christianbarra