use preview build from MetaMask/core#4602

app/core/Engine.ts

@@ -82,6 +82,12 @@ import {
   ApprovalControllerEvents,
   ApprovalControllerState,
 } from '@metamask/approval-controller';
+import {
+  METAMASK_DOMAIN,
+  SelectedNetworkController,
+  SelectedNetworkControllerState,
+  createSelectedNetworkMiddleware,
+} from '@metamask/selected-network-controller';
 import {
   PermissionController,
   PermissionControllerActions,
@@ -336,6 +342,7 @@ export interface EngineState {
   LoggingController: LoggingControllerState;
   PPOMController: PPOMState;
   AccountsController: AccountsControllerState;
+  SelectedNetworkController: SelectedNetworkControllerState;
 }
 
 /**
@@ -898,6 +905,28 @@ class Engine {
       unrestrictedMethods,
     });
 
+    const selectedNetworkController = new SelectedNetworkController({
+      messenger: this.controllerMessenger.getRestricted({
+        name: 'SelectedNetworkController',
+        allowedActions: [
+          'NetworkController:getNetworkClientById',
+          'NetworkController:getState',
+          'NetworkController:getSelectedNetworkClient',
+          'PermissionController:hasPermissions',
+          'PermissionController:getSubjectNames',
+        ],
+        allowedEvents: [
+          'NetworkController:stateChange',
+          'PermissionController:stateChange',
+        ],
+      }),
+      state: initialState.SelectedNetworkController || { domains: {} },
+      useRequestQueuePreference: !!process.env.MULTICHAIN_V1,
+      // @ts-expect-error TODO: Resolve mismatch between PreferenceController versions.
+      onPreferencesStateChange,
+      domainProxyMap: new WeakRefObjectMap(),
+    });
+
     ///: BEGIN:ONLY_INCLUDE_IF(preinstalled-snaps,external-snaps)
     const subjectMetadataController = new SubjectMetadataController({
       // eslint-disable-next-line @typescript-eslint/ban-ts-comment

package.json

@@ -182,6 +182,7 @@
     "@metamask/rpc-errors": "^6.2.1",
     "@metamask/scure-bip39": "^2.1.0",
     "@metamask/sdk-communication-layer": "^0.28.1",
+    "@metamask/selected-network-controller": "^15.0.2",
     "@metamask/signature-controller": "^16.0.0",
     "@metamask/slip44": "3.1.0",
     "@metamask/smart-transactions-controller": "11.0.0",
@@ -478,12 +479,14 @@
     "prettier-plugin-gherkin": "^1.1.1",
     "react-dom": "18.2.0",
     "react-native-cli": "2.0.1",
+    "react-native-flipper": "^0.263.0",
     "react-native-launch-arguments": "^4.0.1",
     "react-native-performance": "^5.1.2",
     "react-native-storybook-loader": "^2.0.4",
     "react-native-svg-asset-plugin": "^0.5.0",
     "react-native-svg-transformer": "^1.0.0",
     "react-test-renderer": "18.2.0",
+    "redux-flipper": "^2.0.3",
     "regenerator-runtime": "0.13.9",
     "rn-nodeify": "10.3.0",
     "serve-handler": "^6.1.5",
@@ -495,9 +498,7 @@
     "webpack-cli": "^5.1.4",
     "xhr2": "^0.2.1",
     "xml2js": "^0.5.0",
-    "yarn-deduplicate": "^6.0.2",
-    "redux-flipper": "^2.0.3",
-    "react-native-flipper": "^0.263.0"
+    "yarn-deduplicate": "^6.0.2"
   },
   "config": {
     "react-native-storybook-loader": {

yarn.lock

@@ -5210,6 +5210,18 @@
     utf-8-validate "^5.0.2"
     uuid "^8.3.2"
 
+"@metamask/selected-network-controller@^15.0.2":
+  version "15.0.2"
+  resolved "https://registry.yarnpkg.com/@metamask/selected-network-controller/-/selected-network-controller-15.0.2.tgz#6373156a1e837839ea771b61aa065f69b47a90c9"
+  integrity sha512-B4jZO0g49NwK78Zh391UOZsGYlHlWw/GMVkb9rXDLBYpbXSgiVMb5mdgdfqSWvi2YnFuwiCDPTszwBTM+M+aLA==
+  dependencies:
+    "@metamask/base-controller" "^6.0.0"
+    "@metamask/json-rpc-engine" "^9.0.0"
+    "@metamask/network-controller" "^19.0.0"
+    "@metamask/permission-controller" "^10.0.0"
+    "@metamask/swappable-obj-proxy" "^2.2.0"
+    "@metamask/utils" "^8.3.0"
+
 "@metamask/signature-controller@^16.0.0":
   version "16.0.0"
   resolved "https://registry.yarnpkg.com/@metamask/signature-controller/-/signature-controller-16.0.0.tgz#78c7f23d02da99d4e953eb9b4e8e2909523a3288"