Nothin' New Under the Moon:

    AWS Lambda        ≈ CGI-BIN [1] ≈ FastCGI [2]

    Cloudflare Worker ≈ EJB Session Bean [3]
    Durable Object    ≈ EJB Entity  Bean [4]

    Durable Objects   ≈ Distributed Virtual Actors (MS Orleans) [5,6]

    Serverless        ≈ Middleware-as-a-Service

;)

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1. https://en.wikipedia.org/wiki/Common_Gateway_Interface

2. https://en.wikipedia.org/wiki/FastCGI

3. https://docs.oracle.com/javaee/6/tutorial/doc/gipjg.html

4. https://docs.oracle.com/cd/E16439_01/doc.1013/e13981/undejbs...

5. https://www.microsoft.com/en-us/research/wp-content/uploads/...

6. Cloudflare Durable Objects are Virtual Objects

https://news.ycombinator.com/item?id=44005900

I recommend the authors book too if you are staring out with Cloudflare

*starting