diff --git a/.idea/misc.xml b/.idea/misc.xml
index 40ba7a7..2304d43 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -3,5 +3,5 @@
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="17" project-jdk-type="JavaSDK" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK" />
 </project>
\ No newline at end of file
diff --git a/firebase-firestore/build.gradle.kts b/firebase-firestore/build.gradle.kts
index cb2b3ce..d3d4623 100644
--- a/firebase-firestore/build.gradle.kts
+++ b/firebase-firestore/build.gradle.kts
@@ -2,7 +2,7 @@ plugins {
     alias(libs.plugins.kotlin.libs.convention)
 }
 
-version = "0.0.1"
+version = "0.0.2"
 
 kotlin {
     sourceSets.jsMain {
diff --git a/firebase-firestore/src/jsMain/kotlin/CollectionReference.kt b/firebase-firestore/src/jsMain/kotlin/CollectionReference.kt
new file mode 100644
index 0000000..9302970
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/CollectionReference.kt
@@ -0,0 +1,9 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+external interface CollectionReference : Query {
+    var id: String
+    var parent: DocumentReference?
+    var path: String
+}
diff --git a/firebase-firestore/src/jsMain/kotlin/DocumentData.kt b/firebase-firestore/src/jsMain/kotlin/DocumentData.kt
new file mode 100644
index 0000000..82074ea
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/DocumentData.kt
@@ -0,0 +1 @@
+interface DocumentData
diff --git a/firebase-firestore/src/jsMain/kotlin/DocumentReference.kt b/firebase-firestore/src/jsMain/kotlin/DocumentReference.kt
new file mode 100644
index 0000000..788b525
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/DocumentReference.kt
@@ -0,0 +1,36 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+/**
+ * A DocumentReference refers to a document location in a Firestore database
+ * and can be used to write, read, or listen to the location.
+ * The document at the referenced location may or may not exist.
+ */
+external class DocumentReference {
+    /**
+     * The Firestore instance the document is in.
+     * This is useful for performing transactions, for example.
+     */
+    val firestore: Firestore
+
+    /**
+     * The document's identifier within its collection.
+     */
+    var id: String
+
+    /**
+     * The collection this DocumentReference belongs to.
+     */
+    var parent: CollectionReference
+
+    /**
+     * A string representing the path of the referenced document (relative to the root of the database).
+     */
+    var path: String
+
+    /**
+     * The type of this Firestore reference.
+     */
+    val type: String = definedExternally
+}
diff --git a/firebase-firestore/src/jsMain/kotlin/DocumentSnapshot.kt b/firebase-firestore/src/jsMain/kotlin/DocumentSnapshot.kt
new file mode 100644
index 0000000..1f1cd67
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/DocumentSnapshot.kt
@@ -0,0 +1,13 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+open external class DocumentSnapshot {
+    var id: String
+    val metadata: SnapshotMetadata
+    var ref: DocumentReference
+    fun data(options: SnapshotOptions?): DocumentData?
+    fun exists(): Boolean
+    fun get(fieldPath: String, options: SnapshotOptions?): dynamic
+    fun get(fieldPath: FieldPath, options: SnapshotOptions?): dynamic
+}
diff --git a/firebase-firestore/src/jsMain/kotlin/FieldPath.kt b/firebase-firestore/src/jsMain/kotlin/FieldPath.kt
new file mode 100644
index 0000000..3bd9f44
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/FieldPath.kt
@@ -0,0 +1,7 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+external class FieldPath(vararg fieldNames: String) {
+    fun isEqual(other: FieldPath): Boolean
+}
diff --git a/firebase-firestore/src/jsMain/kotlin/FirebaseFirestore.kt b/firebase-firestore/src/jsMain/kotlin/FirebaseFirestore.kt
index d9b3e9a..194c97b 100644
--- a/firebase-firestore/src/jsMain/kotlin/FirebaseFirestore.kt
+++ b/firebase-firestore/src/jsMain/kotlin/FirebaseFirestore.kt
@@ -2,11 +2,20 @@
 @file:JsNonModule
 @file:Suppress("unused")
 
-external class Firestore {
-    val app: FirebaseApp
-    val type: String = definedExternally
-
-    fun toJson(): dynamic
-}
+import kotlin.js.Promise
 
 external fun getFirestore(app: FirebaseApp): Firestore
+
+external fun collection(
+    firestore: Firestore,
+    path: String,
+    vararg pathSegments: String
+): CollectionReference
+
+external fun addDoc(reference: CollectionReference, data: DocumentData): Promise<DocumentReference>
+
+external fun getDoc(reference: CollectionReference): Promise<DocumentReference>
+
+external fun updateDoc(reference: CollectionReference, data: DocumentData): Promise<Unit>
+
+external fun deleteDoc(reference: CollectionReference): Promise<Unit>
diff --git a/firebase-firestore/src/jsMain/kotlin/Firestore.kt b/firebase-firestore/src/jsMain/kotlin/Firestore.kt
new file mode 100644
index 0000000..0b8f1dd
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/Firestore.kt
@@ -0,0 +1,10 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+external class Firestore {
+    val app: FirebaseApp
+    val type: String = definedExternally
+
+    fun toJson(): dynamic
+}
diff --git a/firebase-firestore/src/jsMain/kotlin/Query.kt b/firebase-firestore/src/jsMain/kotlin/Query.kt
new file mode 100644
index 0000000..ce80b37
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/Query.kt
@@ -0,0 +1,8 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+external interface Query {
+    val firestore: Firestore
+    val type: QueryType
+}
diff --git a/firebase-firestore/src/jsMain/kotlin/QueryDocumentSnapshot.kt b/firebase-firestore/src/jsMain/kotlin/QueryDocumentSnapshot.kt
new file mode 100644
index 0000000..8a6c334
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/QueryDocumentSnapshot.kt
@@ -0,0 +1,7 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+external class QueryDocumentSnapshot : DocumentSnapshot {
+    fun data(options: SnapshotOptions): DocumentData
+}
diff --git a/firebase-firestore/src/jsMain/kotlin/QueryType.kt b/firebase-firestore/src/jsMain/kotlin/QueryType.kt
new file mode 100644
index 0000000..0a98291
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/QueryType.kt
@@ -0,0 +1,18 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+import seskar.js.JsValue
+import seskar.js.JsVirtual
+
+@Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
+@JsVirtual
+sealed external interface QueryType {
+    companion object {
+        @JsValue("query")
+        val query: QueryType
+
+        @JsValue("collection")
+        val collection: QueryType
+    }
+}
diff --git a/firebase-firestore/src/jsMain/kotlin/ServerTimeStamps.kt b/firebase-firestore/src/jsMain/kotlin/ServerTimeStamps.kt
new file mode 100644
index 0000000..72845db
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/ServerTimeStamps.kt
@@ -0,0 +1,22 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+import seskar.js.JsValue
+import seskar.js.JsVirtual
+
+
+@Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
+@JsVirtual
+external interface ServerTimeStamps {
+    companion object {
+        @JsValue("estimate")
+        val estimate: ServerTimeStamps
+
+        @JsValue("previous")
+        val previous: ServerTimeStamps
+
+        @JsValue("none")
+        val none: ServerTimeStamps
+    }
+}
diff --git a/firebase-firestore/src/jsMain/kotlin/SnapshotMetadata.kt b/firebase-firestore/src/jsMain/kotlin/SnapshotMetadata.kt
new file mode 100644
index 0000000..d6db080
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/SnapshotMetadata.kt
@@ -0,0 +1,9 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+external class SnapshotMetadata {
+    val fromCache: Boolean
+    val hasPendingWrites: Boolean
+    fun isEqual(other: SnapshotMetadata): Boolean
+}
diff --git a/firebase-firestore/src/jsMain/kotlin/SnapshotOptions.kt b/firebase-firestore/src/jsMain/kotlin/SnapshotOptions.kt
new file mode 100644
index 0000000..d6b02a6
--- /dev/null
+++ b/firebase-firestore/src/jsMain/kotlin/SnapshotOptions.kt
@@ -0,0 +1,7 @@
+@file:JsModule("firebase/firestore")
+@file:JsNonModule
+@file:Suppress("unused")
+
+external interface SnapshotOptions {
+    val serverTimestamps: ServerTimeStamps
+}
diff --git a/firebase-wrapper-bom/build.gradle.kts b/firebase-wrapper-bom/build.gradle.kts
index 5f3ae75..43b7b43 100644
--- a/firebase-wrapper-bom/build.gradle.kts
+++ b/firebase-wrapper-bom/build.gradle.kts
@@ -3,7 +3,7 @@ plugins {
     alias(libs.plugins.publish.convention)
 }
 
-version = "0.0.1"
+version = "0.0.2"
 
 javaPlatform {
     allowDependencies()