add support for pojos in firebase functions call

Author: nbransby

firebase-functions/build.gradle.kts

@@ -50,10 +50,14 @@ kotlin {
         val androidMain by getting {
             dependencies {
                 api("com.google.firebase:firebase-functions:17.0.0")
+                implementation("com.google.code.gson:gson:2.7")
             }
         }
         val jvmMain by getting {
             kotlin.srcDir("src/androidMain/kotlin")
+            dependencies {
+                implementation("com.google.code.gson:gson:2.7")
+            }
         }
     }
 }

firebase-functions/src/androidMain/kotlin/dev/teamhub/firebase/functions/functions.kt

@@ -1,15 +1,19 @@
 package dev.teamhub.firebase.functions
 
+import com.google.gson.Gson
 import kotlinx.coroutines.tasks.await
+import org.json.JSONTokener
 import java.util.concurrent.TimeUnit
 
+private val gson by lazy { Gson() }
+
 actual fun getFirebaseFunctions() = FirebaseFunctions.getInstance()
 
 actual typealias FirebaseFunctions = com.google.firebase.functions.FirebaseFunctions
 
 actual typealias HttpsCallableReference = com.google.firebase.functions.HttpsCallableReference
 
-actual suspend fun HttpsCallableReference.awaitCall(data: Any?) = call(data).await()
+actual suspend fun HttpsCallableReference.awaitCall(data: Any?) = call(JSONTokener(gson.toJson(data)).nextValue()).await()
 actual suspend fun HttpsCallableReference.awaitCall() = call().await()
 
 actual typealias HttpsCallableResult = com.google.firebase.functions.HttpsCallableResult
@@ -20,4 +24,4 @@ actual val HttpsCallableResult.data: Any
 actual fun FirebaseFunctions.getHttpsCallable(name: String, timeout: Long?) =
     getHttpsCallable(name).apply { timeout?.let { setTimeout(it, TimeUnit.MILLISECONDS) } }
 
-actual typealias FirebaseFunctionsException = com.google.firebase.functions.FirebaseFunctionsException
+actual typealias FirebaseFunctionsException = com.google.firebase.functions.FirebaseFunctionsException