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Asynchronous Server Application Boilerplate’s documentation

Asynchronous Server App Boilerplate (or ASAB for short) is a microservice platform for Python 3.7+ and asyncio. ASAB aims to minimize the amount of code that needs to be written when building a microservice or an application server. ASAB is fully asynchronous using async/await syntax from Python 3, making your code modern, non-blocking, speedy and hence scalable. We make every effort to build ASAB container-friendly so that you can deploy ASAB-based microservice via Docker or Kubernetes in a breeze.

ASAB is free and open-source software, available under BSD licence. It means that anyone is freely licenced to use, copy, study, and change the software in any way, and the source code is openly shared so that people could voluntarily improve the design of the software. Anyone can (and is encouraged to) use ASAB in his or her projects, for free. A current maintainer is a TeskaLabs Ltd company.

ASAB is developed on GitHub. Contributions are welcome!

ASAB is designed to be powerful yet simple

Here is a complete example of a fully working microservice:

import asab

class MyApplication(asab.Application):
    async def main(self):
        print("Hello world!")
        self.stop()

if __name__ == "__main__":
    app = MyApplication()
    app.run()

ASAB is the right choice when

  • using Python 3.7+.
  • building the microservice or the application server.
  • utilizing asynchronous I/O (aka asyncio).

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