What to build a web service on if you need to transfer binary data?

Question

Computer networks

Hello! The question, in fact, is this: it is necessary to build several applications that will be services that issue both files and some selections from databases, that is, text and binary data. It is also necessary to create an integration platform (IP) that will combine all these services into a single interface. In the future, it is possible to connect third-party applications, the main thing is that they comply with the protocol of interaction between the IP and the service.
What technologies should be used for this today?