Multiple arguments with jetpack compose navigation

Question

How do I declare a navigation route with multiple navigation arguments? I've checked the documentation, and all of these articles (which seem to simply reiterate what the documentation says), and I could only find examples of routes with one argument.

Here's what I have:

composable(
  route = "createExercise/{exerciseId}",
  arguments = listOf(navArgument("exerciseId") { type = NavType.IntType })
) { backStackEntry ->
  CreateExerciseScreen(
    exerciseId = backStackEntry.arguments!!.getInt("exerciseId"),
  )
}

Here's what I want:

composable(
  route = "createExercise/{exerciseId},{workoutId}",
  arguments = listOf(
    navArgument("exerciseId") { type = NavType.IntType },
    navArgument("workoutId") { type = NavType.IntType },
  )
) { backStackEntry ->
  CreateExerciseScreen(
    exerciseId = backStackEntry.arguments!!.getInt("exerciseId"),
    workoutId = backStackEntry.arguments!!.getInt("workoutId"),
  )
}

I arbitrarily chose a comma-seperated syntax for the example above in place of the real syntax which I am looking for.

So, my question is: When declaring a navigation route, what's the correct syntax for multiple arguments? (And what about optional arguments?)

Answer 1

As per the docs:

You can think of it as an implicit deep link that leads to a specific destination.

So it follows the same conventions as any other implicit deep link and conventions of RESTful URLs on the web, which would generally use a / to separate different arguments to form the path of the URL - this covers the required arguments:

createExercise/{exerciseId}/{workoutId}

As per the optional arguments documentation that path of required arguments can be followed by any number of optional arguments in the form of one or more query parameters:

createExercise/{exerciseId}/{workoutId}?setNumber={setNumber}&repNumber={repNumber}