How can you call a suspend function inside synchronous code?

You cannot call a suspend function directly from synchronous code because it requires a coroutine context. However, you can launch a coroutine and wait for the result in a blocking manner using the runBlocking function.

Example:

import kotlinx.coroutines.*

fun main() {
    val result = runBlocking {
        suspendFunction()
    }
    println(result)
}

suspend fun suspendFunction(): String {
    delay(1000)
    return "Result"
}

runBlocking creates a coroutine scope and blocks the current thread until the coroutine completes, allowing suspend functions to be used in synchronous code.