Custom result library enables handling and processing of various errors, allowing seamless transformation and integration with existing result types. Offers detailed error interfaces and transformation functions.
This is a custom result library that can be used in case where developer needs to process many different errors. Result can be simply transformed, integrated with kotlin.Result
fun fetch(): Result<String, Error> {
// some fetching
return Result.Success<String>("success")
}
fun uploadToStorage(data: Int): Result<Unit, Error> {
// some uploading
return Result.success(Unit)
}
fun fetchAndUploadToStorage(): Result<Unit, Error> {
return fetch().map {
it.toInt()
}.flatMap {
uploadToStorage(it)
}
}
fun ooops(): Result<String, Error> {
// some failed functionality
return Result.Failure<String>("some failure")
}
fun main() {
fetchAndUploadToStorage()
.onSuccess {
println("success")
}.onFailure {
println("error $it")
}
.flatMap {
ooops()
}
}
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