What does to have a positive spin on something mean exactly while I was listening to an English podcast I came across this sentence.

You just need to have a positive spin on it and be grateful.

feel free to provide some examples if you want thanks again beforehand.

查看翻譯

To have a better look on a situation/ to be more focused on the optimistic side of the situation.

Other ways to say this is
on the bright side, on a more positive note.

Linda couldn’t get tickets to the concert. On the bright side she will save more money.

Danny couldn’t get a flight back to California. His sister told him to have a positive spin instead of being worried. At least you get two extra days of vacation.