[mcless]

During the time I worked for Amazon, the entire Amazon infrastructure was written as services. It indeed felt like a bucket of cold water in my first month at Amazon, especially after having worked in software products company for 10 years prior to that.

But gradually, I got used to the services based architecture, where something as simple as presenting a login page would lead to dozens of REST API calls back and forth between various backend services.

I am not saying that one approach is better than another. I would have to dedicate a separate comment to discuss that. All I am saying is that developing an entire software system composed purely of generic services with HTTP based REST APIs indeed exist and are very successful in very successful companies.

[pavlov]

Absolutely. At Amazon's scale, the justification is there. Things are different for invididual developers and small teams where the mesh of services will be maintained by the same people anyway.