Hi Pradeep,
Bin is exposed as a service in DI API, as with almost all the new implementation.
No, you can not use the GetByKey method.
If you don't know how to use service, I suggest you start learning it.
It is simple if you have got the hang out of it.
When you jump into programming, you should always get ready to learn new things otherwise you will be obsolete very quickly. 
Good Luck,
Edy