fix: add the installation id on ios as well

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: Any] {
+		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