Web services in Android

I want to use my own web service in my android application. Which will be the best way to do this?

(I haven't written my web service yet)

I checked the other question also like 开发者_开发百科How to call a SOAP web service on Android but they are too old.

Sorry, for repetitive question but I want to know if any new and better option is available.

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Your best bet is to write a REST based web service. Use xml or json for data marshalling.