Как в Kotlin Flow реализуется обработка ошибок и исключений?

In Kotlin Flow, error handling is implemented using operators and constructs that allow intercepting and processing exceptions in the data stream.

Main methods:

• catch: an operator to intercept exceptions that occur in the upstream Flow.

  flow {
      emit(1)
      throw RuntimeException("Error")
  }.catch { e ->
      emit(-1) // handle error, for example, emit a default value
  }.collect { value ->
      println(value)
  }
  

• onCompletion: called when the flow completes, can check if an exception occurred.

• try-catch inside flow: can be used for local error handling.

Thus, Flow provides flexible mechanisms for safe error handling and preventing the entire flow from crashing.