(240601) Medium Daily Digest

Implementing a Retry Mechanism with Coroutines in Kotlin for Network Failures

https://medium.com/@mohamed.ma872/implementing-a-retry-mechanism-with-coroutines-in-kotlin-for-network-failures-6dff04d26c14

import kotlinx.coroutines.delay

suspend fun <T> retryCoroutine(
    maxAttempts: Int = 3,
    initialDelay: Long = 1000,  // Initial delay in milliseconds
    maxDelay: Long = 3000,      // Max delay in milliseconds
    factor: Double = 2.0,       // Factor to increase the delay each retry
    block: suspend () -> T      // The suspend function that makes the network request
): T {
    var currentDelay = initialDelay
    repeat(maxAttempts - 1) { attempt ->
        try {
            return block() // Try to execute the block
        } catch (e: Exception) {
            println("Attempt ${attempt + 1} failed: ${e.message}")
            delay(currentDelay)
            currentDelay = (currentDelay * factor).toLong().coerceAtMost(maxDelay)
        }
    }
    return block() // Last attempt, throw exception if it fails
}