As our system architectures and the Internet of Things continue to push us towards distributed logic we need a way to route the traffic between those various components. Crossbar.io is the original implementation of the Web Application Messaging Protocol (WAMP) which combines Remote Procedure Calls (RPC) with Publish/Subscribe (PubSub) communication patterns into a single communication layer. In this episode Tobias Oberstein describes the use cases and design patterns that become possible when you have event-based RPC in a high-throughput and low-latency system.
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- Your host as usual is Tobias Macey and today I’m interviewing Tobias Oberstein and Alexander Gödde about Crossbar.io, a high throughput asynchronous router for the WAMP protocol
- How did you get introduced to Python?
- What is Crossbar and what is the problem that you were trying to solve when you created it?
- What is the status of the IETF WAMP protocol proposal?
- Why have an open protocol – and how do you see the ecosystem?
- Python isn’t typically considered to be a high-performance language so what led you to use it for building Crossbar?
- How is Crossbar architected for proxying requests from a highly distributed set of clients with low latency and high throughput?
- How do you handle authorization between the various clients of the router so that potentially sensitive messages don’t get published to the wrong component?
- Does Crossbar encapsulate any business logic or is that all pushed to the edges of the system?
- What are some of the typical kinds of applications that Crossbar is designed for?
- What are some common design paradigms that would be better suited for a WAMP implementation?
- What are some of the most interesting or surprising uses of Crossbar that you have seen?
- What do you have planned for the future of Crossbar?
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