Middleware is the most widely existing infrastructure based on application system, which is used to process with various non-functional requirements.
There are a variety of projects in ASF that provide middleware solutions. For example, Apache Karaf and Apache ServiceMix are used for ESB; Apache ShardingSphere has the ability of database additional services.
In the middleware topic, you will not only learn about the practical experience of first-line users in applying these Apache projects, but also learn about the latest developments in the ecology of them. At the same time, it also looks forward to the latest vision of middleware.