@PathVariable

In this lesson we will create a new endpoint for our REST API to retrieve a single player based on the id field. We will fetch the required player from the Player table.

Path variables

Path variables are a way of parameterizing the path or endpoint to accept data. Path variables are written in curly braces. When the client sends a request, it passes a value in place of the path variable. For example, we could say /players/1 to give us the player with Id 1, or /players/3 for the player with Id 3.

The REST client will send a request to /players/{playerId}, where playerId is a path variable. So the actual call may be /players/2. The REST service will return the player with id 2 from the Player table, which is Monfils.

JpaRepository interface provides us ...