Exposes client installationId

android/src/main/java/expo/modules/xmtpreactnativesdk/XMTPModule.kt

@@ -67,6 +67,7 @@ import kotlin.coroutines.Continuation
 import kotlin.coroutines.resume
 import kotlin.coroutines.resumeWithException
 import com.facebook.common.util.Hex
+import expo.modules.xmtpreactnativesdk.wrappers.ClientWrapper
 import expo.modules.xmtpreactnativesdk.wrappers.MemberWrapper
 import org.xmtp.android.library.messages.MessageDeliveryStatus
 import org.xmtp.android.library.messages.Topic
@@ -242,7 +243,7 @@ class XMTPModule : Module() {
             clients[address] = client
             ContentJson.Companion
             signer = null
-            sendEvent("authed", mapOf("inboxId" to client.inboxId))
+            sendEvent("authed", ClientWrapper.encodeToObj(client))
         }
 
         Function("receiveSignature") { requestID: String, signature: String ->
@@ -282,10 +283,7 @@ class XMTPModule : Module() {
             val randomClient = Client().create(account = privateKey, options = options)
             ContentJson.Companion
             clients[randomClient.address] = randomClient
-            mapOf (
-                "address" to randomClient.address,
-                "inboxId" to randomClient.inboxId
-            )
+            ClientWrapper.encodeToObj(randomClient)
         }
 
         AsyncFunction("createFromKeyBundle") { keyBundle: String, environment: String, appVersion: String?, enableAlphaMls: Boolean?, dbEncryptionKey: List<Int>?, dbDirectory: String? ->
@@ -315,10 +313,7 @@ class XMTPModule : Module() {
                 val client = Client().buildFromBundle(bundle = bundle, options = options)
                 ContentJson.Companion
                 clients[client.address] = client
-                mapOf (
-                    "address" to client.address,
-                    "inboxId" to client.inboxId
-                )
+                ClientWrapper.encodeToObj(client)
             } catch (e: Exception) {
                 throw XMTPException("Failed to create client: $e")
             }

android/src/main/java/expo/modules/xmtpreactnativesdk/wrappers/ClientWrapper.kt

@@ -0,0 +1,22 @@
+package expo.modules.xmtpreactnativesdk.wrappers
+
+import com.google.gson.GsonBuilder
+import org.xmtp.android.library.Client
+
+class ClientWrapper {
+    companion object {
+        fun encodeToObj(client: Client): Map<String, String> {
+            return mapOf(
+                "inboxId" to client.inboxId,
+                "address" to client.address,
+                "installationId" to client.installationId
+            )
+        }
+
+        fun encode(client: Client): String {
+            val gson = GsonBuilder().create()
+            val obj = encodeToObj(client)
+            return gson.toJson(obj)
+        }
+    }
+}

example/src/tests/groupTests.ts

@@ -191,6 +191,16 @@ test('can make a MLS V3 client from bundle', async () => {
     `clients dont match ${client2.address} and ${client.address}`
   )
 
+  assert(
+    client.inboxId === client2.inboxId,
+    `clients dont match ${client2.inboxId} and ${client.inboxId}`
+  )
+
+  assert(
+    client.installationId === client2.installationId,
+    `clients dont match ${client2.installationId} and ${client.installationId}`
+  )
+
   const randomClient = await Client.createRandom({
     env: 'local',
     appVersion: 'Testing/0.0.0',

ios/Wrappers/ClientWrapper.swift

@@ -0,0 +1,29 @@
+//
+//  ClientWrapper.swift
+//  XMTPReactNative
+//
+//  Created by Naomi Plasterer on 6/10/24.
+//
+
+import Foundation
+import XMTP
+
+// Wrapper around XMTP.Client to allow passing these objects back into react native.
+struct ClientWrapper {
+	static func encodeToObj(_ client: XMTP.Client) throws -> [String: String] {
+		return [
+			"inboxId": client.inboxID,
+			"address": client.address,
+			"installationId": client.installationID,
+		]
+	}
+
+	static func encode(_ client: XMTP.Client) throws -> String {
+		let obj = try encodeToObj(client)
+		let data = try JSONSerialization.data(withJSONObject: obj)
+		guard let result = String(data: data, encoding: .utf8) else {
+			throw WrapperError.encodeError("could not encode client")
+		}
+		return result
+	}
+}

ios/Wrappers/MemberWrapper.swift

@@ -8,7 +8,7 @@
 import Foundation
 import XMTP
 
-// Wrapper around XMTP.Group to allow passing these objects back into react native.
+// Wrapper around XMTP.Member to allow passing these objects back into react native.
 struct MemberWrapper {
 	static func encodeToObj(_ member: XMTP.Member) throws -> [String: Any] {
 		let permissionString = switch member.permissionLevel {

ios/XMTPModule.swift

@@ -142,7 +142,7 @@ public class XMTPModule: Module {
 			let client = try await XMTP.Client.create(account: signer, options: options)
 			await clientsManager.updateClient(key: address, client: client)
 			self.signer = nil
-			sendEvent("authed", ["inboxId": client.inboxID])
+			sendEvent("authed", try ClientWrapper.encodeToObj(client))
 		}
 
 		Function("receiveSignature") { (requestID: String, signature: String) in
@@ -168,10 +168,7 @@ public class XMTPModule: Module {
 			let client = try await Client.create(account: privateKey, options: options)
 
 			await clientsManager.updateClient(key: client.address, client: client)
-			return [
-				"address": client.address,
-				"inboxId": client.inboxID
-			]
+			return try ClientWrapper.encodeToObj(client)
 		}
 
 		// Create a client using its serialized key bundle.
@@ -188,10 +185,7 @@ public class XMTPModule: Module {
 				let options = createClientConfig(env: environment, appVersion: appVersion, mlsAlpha: enableAlphaMls == true, encryptionKey: encryptionKeyData, dbDirectory: dbDirectory)
 				let client = try await Client.from(bundle: bundle, options: options)
 				await clientsManager.updateClient(key: client.address, client: client)
-				return [
-					"address": client.address,
-					"inboxId": client.inboxID
-				]
+				return try ClientWrapper.encodeToObj(client)
 			} catch {
 				print("ERRO! Failed to create client: \(error)")
 				throw error

src/lib/Client.ts

@@ -30,6 +30,7 @@ export class Client<
 > {
   address: string
   inboxId: string
+  installationId: string
   conversations: Conversations<ContentTypes>
   contacts: Contacts
   codecRegistry: { [key: string]: XMTPModule.ContentCodec<unknown> }
@@ -92,13 +93,23 @@ export class Client<
 
         this.authSubscription = XMTPModule.emitter.addListener(
           'authed',
-          async (message: { inboxId: string }) => {
+          async (message: {
+            inboxId: string
+            address: string
+            installationId: string
+          }) => {
             this.removeSubscription(enableSubscription)
             this.removeSubscription(createSubscription)
             this.removeSignSubscription()
             this.removeAuthSubscription()
-            const address = await signer.getAddress()
-            resolve(new Client(address, message.inboxId, opts?.codecs || []))
+            resolve(
+              new Client(
+                message.address,
+                message.inboxId,
+                message.installationId,
+                opts?.codecs || []
+              )
+            )
           }
         )
         await XMTPModule.auth(
@@ -143,7 +154,7 @@ export class Client<
     const options = defaultOptions(opts)
     const { enableSubscription, createSubscription } =
       this.setupSubscriptions(options)
-    const addressInboxId = await XMTPModule.createRandom(
+    const client = await XMTPModule.createRandom(
       options.env,
       options.appVersion,
       Boolean(createSubscription),
@@ -156,8 +167,9 @@ export class Client<
     this.removeSubscription(createSubscription)
 
     return new Client(
-      addressInboxId['address'],
-      addressInboxId['inboxId'],
+      client['address'],
+      client['inboxId'],
+      client['installationId'],
       opts?.codecs || []
     )
   }
@@ -179,7 +191,7 @@ export class Client<
     opts?: Partial<ClientOptions> & { codecs?: ContentCodecs }
   ): Promise<Client<ContentCodecs>> {
     const options = defaultOptions(opts)
-    const addressInboxId = await XMTPModule.createFromKeyBundle(
+    const client = await XMTPModule.createFromKeyBundle(
       keyBundle,
       options.env,
       options.appVersion,
@@ -189,8 +201,9 @@ export class Client<
     )
 
     return new Client(
-      addressInboxId['address'],
-      addressInboxId['inboxId'],
+      client['address'],
+      client['inboxId'],
+      client['installationId'],
       opts?.codecs || []
     )
   }
@@ -271,10 +284,12 @@ export class Client<
   constructor(
     address: string,
     inboxId: string,
+    installationId: string,
     codecs: XMTPModule.ContentCodec<ContentTypes>[] = []
   ) {
     this.address = address
     this.inboxId = inboxId
+    this.installationId = installationId
     this.conversations = new Conversations(this)
     this.contacts = new Contacts(this)
     this.codecRegistry = {}