added DocumentSnapshot.dataMap() (fixes #186)

firebase-firestore/src/androidMain/kotlin/dev/gitlive/firebase/firestore/firestore.kt

@@ -413,6 +413,8 @@ actual class DocumentSnapshot(val android: com.google.firebase.firestore.Documen
 
     actual fun <T> data(strategy: DeserializationStrategy<T>) = decode(strategy, android.data)
 
+    actual fun dataMap(): Map<String, Any?> = android.data ?: mapOf()
+
     actual inline fun <reified T> get(field: String) = decode<T>(value = android.get(field))
 
     actual fun <T> get(field: String, strategy: DeserializationStrategy<T>) =

firebase-firestore/src/commonMain/kotlin/dev/gitlive/firebase/firestore/firestore.kt

@@ -196,6 +196,8 @@ expect class DocumentSnapshot {
     inline fun <reified T: Any> data(): T
     fun <T> data(strategy: DeserializationStrategy<T>): T
 
+    fun dataMap(): Map<String, Any?>
+
     val exists: Boolean
     val id: String
     val reference: DocumentReference

firebase-firestore/src/commonTest/kotlin/dev/gitlive/firebase/firestore/firestore.kt

@@ -124,7 +124,6 @@ class FirebaseFirestoreTest {
 
     }
 
-
     @Test
     fun testDocumentAutoId() = runTest {
         val doc = Firebase.firestore
@@ -142,6 +141,23 @@ class FirebaseFirestoreTest {
         assertEquals("AutoId", resultDoc.get("prop1"))
     }
 
+    @Test
+    fun testDataMap() = runTest {
+        val doc = Firebase.firestore
+            .collection("testDataMap")
+            .document
+
+        doc.set(FirestoreTest.serializer(), FirestoreTest("dataMap", 123.45))
+
+        val resultDoc = Firebase.firestore
+            .collection("testDataMap")
+            .document(doc.id)
+            .get()
+
+        assertEquals(true, resultDoc.exists)
+        assertEquals(mapOf("prop1" to "dataMap", "time" to 123.45), resultDoc.dataMap())
+    }
+
     private suspend fun setupFirestoreData() {
         Firebase.firestore.collection("FirebaseFirestoreTest")
             .document("one")

firebase-firestore/src/iosMain/kotlin/dev/gitlive/firebase/firestore/firestore.kt

@@ -381,6 +381,8 @@ actual class DocumentSnapshot(val ios: FIRDocumentSnapshot) {
 
     actual fun <T> data(strategy: DeserializationStrategy<T>) = decode(strategy, ios.data())
 
+    actual fun dataMap(): Map<String, Any?> = ios.data()?.map { it.key.toString() to it.value }?.toMap() ?: mapOf()
+
     actual inline fun <reified T> get(field: String) = decode<T>(value = ios.valueForField(field))
 
     actual fun <T> get(field: String, strategy: DeserializationStrategy<T>) =

firebase-firestore/src/jsMain/kotlin/dev/gitlive/firebase/firestore/firestore.kt

@@ -393,6 +393,8 @@ actual class DocumentSnapshot(val js: firebase.firestore.DocumentSnapshot) {
     actual fun <T> data(strategy: DeserializationStrategy<T>): T =
         rethrow { decode(strategy, js.data()) }
 
+    actual fun dataMap(): Map<String, Any?> = rethrow { mapOf(js.data().asDynamic()) }
+
     actual inline fun <reified T> get(field: String) =
         rethrow { decode<T>(value = js.get(field)) }
 
@@ -503,3 +505,13 @@ fun errorToException(e: dynamic) = (e?.code ?: e?.message ?: "")
             }
         }
 }
+
+// from: https://discuss.kotlinlang.org/t/how-to-access-native-js-object-as-a-map-string-any/509/8
+fun entriesOf(jsObject: dynamic): List<Pair<String, Any?>> =
+    (js("Object.entries") as (dynamic) -> Array<Array<Any?>>)
+        .invoke(jsObject)
+        .map { entry -> entry[0] as String to entry[1] }
+
+// from: https://discuss.kotlinlang.org/t/how-to-access-native-js-object-as-a-map-string-any/509/8
+fun mapOf(jsObject: dynamic): Map<String, Any?> =
+    entriesOf(jsObject).toMap()

firebase-firestore/src/jsTest/kotlin/dev/gitlive/firebase/firestore/firestore.kt

@@ -15,7 +15,7 @@ actual fun runTest(test: suspend () -> Unit) = GlobalScope
     .promise {
         try {
             test()
-        } catch (e: dynamic) {
+        } catch (e: Throwable) {
             e.log()
             throw e
         }