What do the symbols mean?

Question

Java

What do the symbols " *, : , {}" (stars, colon, fig.brackets) mean, more precisely, what are they called in order to google correctly?
router.get("/api/data*")
router.get("/api/data/:id")
router.get("/api/data/{field_names}")

Answer 1

URL Patterns

Answer 2

usually * means any number of characters,
:id means the
{} parameter of some variable or code
But this is not accurate, it may be different in different docks