What exception handling approaches are used when working with Coroutines?

When working with Kotlin Coroutines for exception handling, the following approaches are used:

1. try-catch inside a coroutine — the simplest way to handle exceptions:

launch {
    try {
        // code that may throw an exception
    } catch (e: Exception) {
        // handle the exception
    }
}

2. CoroutineExceptionHandler — a special handler that can be passed into the coroutine context for global unhandled exception processing:

val handler = CoroutineExceptionHandler { _, exception ->
    println("Caught $exception")
}

val job = GlobalScope.launch(handler) {
    throw RuntimeException("Error")
}

3. Structured concurrency — exceptions in child coroutines can cancel parent coroutines, so it is important to properly build the hierarchy and handle errors at the appropriate level.

4. supervisorScope and SupervisorJob — allow isolating errors in child coroutines so that one error does not cancel all others.

Thus, the choice of approach depends on the context and requirements for error handling in the application.