What languages and tools does amazon use to build their api?

I know amazon has several api's but I was wondering what language and tools does amazon use to build their api, is it java and开发者_开发知识库 soap? Im not sure if all the api's are created the same way, but if not then how is the one for mobile apps created? Thanks!

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Amazon are notoriously secretive about the internals of their systems so I don't think you'll find a satisfactory answer.

The AWS APIs, as far as I know, use Java internally & they use plenty of C++ to run their shopping website