Using the Resource util class to relay data from the repository to view model

Using the Resource util class to relay data from the repository to view-model

• This util class is used to wrap the data object in case of success and failure object in case of failure and return a resource object.
• This is very handy when we want to test the response and also handling the state.

Resource.kt

data class Resource<out T>(val status: Status, val data: T?, val message: String?) {
    companion object {
        fun <T> success(data: T?): Resource<T> {
            return Resource(Status.SUCCESS, data, null)
        }

        fun <T> error(msg: String, data: T?): Resource<T> {
            return Resource(Status.ERROR, data, msg)
        }

        fun <T> loading(data: T?): Resource<T> {
            return Resource(Status.LOADING, data, null)
        }
    }
}

enum class Status {
    SUCCESS,
    ERROR,
    LOADING
}