Actually, we don't have any phrase for that expression. But we just say ありがとう naturally. Or you can say 君（あなた）のおかげだよ although I've never heard someone saying this. In our culture, we rarely express our feeling except when we thank someone, I suppose. hope it helps!

greetings dear i will like us to be friends i have a lot to share with you, i will like you to contact me through my mail address ([email protected]) i will be waiting for your mail in my box