diff --git a/src/api/coral-types.ts b/src/api/coral-types.ts
index dbb4d4b..5c6989d 100644
--- a/src/api/coral-types.ts
+++ b/src/api/coral-types.ts
@@ -34,7 +34,17 @@ export enum CoralStatus {
     MULTIPLE_LOGIN = 9426,
     UPGRADE_REQUIRED = 9427,
     ACCOUNT_DISABLED = 9428,
+    RATE_LIMIT_EXCEEDED = 9437,
     MEMBERSHIP_REQUIRED = 9450,
+    INVALID_FRIEND_REQUEST = 9460,
+    SENDER_FRIEND_LIMIT_EXCEEDED = 9461,
+    RECEIVER_FRIEND_LIMIT_EXCEEDED = 9462,
+    FRIEND_REQUEST_NOT_ACCEPTED = 9463,
+    DUPLICATE_FRIEND_REQUEST = 9464,
+    PRECONDITION_FAILED = 9465,
+    RESOURCE_LIMIT_EXCEEDED = 9466,
+    ALREADY_FRIEND = 9467,
+    SENDER_BLOCKS_RECEIVER_FRIEND_REQUEST = 9468,
     SERVICE_CLOSED = 9499,
     INTERNAL_SERVER_ERROR = 9500,
     SERVICE_UNAVAILABLE = 9501,
@@ -128,6 +138,21 @@ export interface Game {
     sysDescription: string;
 }
 
+/** /v3/Friend/CreateFriendCodeUrl */
+export interface FriendCodeUrl {
+    url: string;
+    friendCode: string;
+}
+
+/** /v3/Friend/GetUserByFriendCode, /v3/Friend/GetUserByFriendCodeHash */
+export interface FriendCodeUser {
+    id: number;
+    nsaId: string;
+    imageUrl: string;
+    name: string;
+    extras: {};
+}
+
 /** /v1/Game/ListWebServices */
 export type WebServices = WebService[];
 
diff --git a/src/api/coral.ts b/src/api/coral.ts
index 53abf4e..503a74a 100644
--- a/src/api/coral.ts
+++ b/src/api/coral.ts
@@ -2,7 +2,7 @@ import fetch, { Response } from 'node-fetch';
 import { v4 as uuidgen } from 'uuid';
 import createDebug from 'debug';
 import { f, FlapgIid } from './f.js';
-import { AccountLogin, AccountToken, Announcements, CurrentUser, CurrentUserPermissions, Event, Friends, GetActiveEventResult, PresencePermissions, User, WebServices, WebServiceToken, CoralErrorResponse, CoralResponse, CoralStatus, CoralSuccessResponse } from './coral-types.js';
+import { AccountLogin, AccountToken, Announcements, CurrentUser, CurrentUserPermissions, Event, Friends, GetActiveEventResult, PresencePermissions, User, WebServices, WebServiceToken, CoralErrorResponse, CoralResponse, CoralStatus, CoralSuccessResponse, FriendCodeUser, FriendCodeUrl } from './coral-types.js';
 import { getNintendoAccountToken, getNintendoAccountUser, NintendoAccountUser } from './na.js';
 import { ErrorResponse } from './util.js';
 import { JwtPayload } from '../util/jwt.js';
@@ -12,12 +12,15 @@ const debug = createDebug('nxapi:api:coral');
 
 const ZNCA_PLATFORM = 'Android';
 const ZNCA_PLATFORM_VERSION = '8.0.0';
-const ZNCA_VERSION = '2.1.1';
+const ZNCA_VERSION = '2.2.0';
 const ZNCA_USER_AGENT = `com.nintendo.znca/${ZNCA_VERSION}(${ZNCA_PLATFORM}/${ZNCA_PLATFORM_VERSION})`;
 
 const ZNC_URL = 'https://api-lp1.znc.srv.nintendo.net';
 export const ZNCA_CLIENT_ID = '71b963c1b7b6d119';
 
+const FRIEND_CODE = /^\d{4}-\d{4}-\d{4}$/;
+const FRIEND_CODE_HASH = /^[A-Za-z0-9]{10}$/;
+
 export default class CoralApi {
     onTokenExpired: ((data: CoralErrorResponse, res: Response) => Promise<void>) | null = null;
     /** @internal */
@@ -123,10 +126,32 @@ export default class CoralApi {
         });
     }
 
+    async getUserByFriendCode(friend_code: string, hash?: string) {
+        if (!FRIEND_CODE.test(friend_code)) throw new Error('Invalid friend code');
+        if (hash && !FRIEND_CODE_HASH.test(hash)) throw new Error('Invalid friend code hash');
+
+        return hash ? this.call<FriendCodeUser>('/v3/Friend/GetUserByFriendCodeHash', {
+            friendCode: friend_code,
+            friendCodeHash: hash,
+        }) : this.call<FriendCodeUser>('/v3/Friend/GetUserByFriendCode', {
+            friendCode: friend_code,
+        });
+    }
+
+    async sendFriendRequest(nsa_id: string) {
+        return this.call<{}>('/v3/FriendRequest/Create', {
+            nsaId: nsa_id,
+        });
+    }
+
     async getCurrentUser() {
         return this.call<CurrentUser>('/v3/User/ShowSelf');
     }
 
+    async getFriendCodeUrl() {
+        return this.call<FriendCodeUrl>('/v3/Friend/CreateFriendCodeUrl');
+    }
+
     async getCurrentUserPermissions() {
         return this.call<CurrentUserPermissions>('/v3/User/Permissions/ShowSelf');
     }
diff --git a/src/app/main/ipc.ts b/src/app/main/ipc.ts
index ba6a7f2..75cc304 100644
--- a/src/app/main/ipc.ts
+++ b/src/app/main/ipc.ts
@@ -164,6 +164,7 @@ export function setupIpc(appinstance: App, ipcMain: IpcMain) {
     ipcMain.handle('nxapi:webserviceapi:requestGameWebToken', e => webserviceipc.requestGameWebToken(e));
     ipcMain.handle('nxapi:webserviceapi:restorePersistentData', e => webserviceipc.restorePersistentData(e));
     ipcMain.handle('nxapi:webserviceapi:storePersistentData', (e, data: string) => webserviceipc.storePersistentData(e, data));
+    ipcMain.handle('nxapi:webserviceapi:completeLoading', e => webserviceipc.completeLoading(e));
 
     store.on('update-nintendo-accounts', () => sendToAllWindows('nxapi:accounts:shouldrefresh'));
     store.on('update-discord-presence-source', () => sendToAllWindows('nxapi:discord:shouldrefresh'));
diff --git a/src/app/main/webservices.ts b/src/app/main/webservices.ts
index bf840aa..c9a9ca4 100644
--- a/src/app/main/webservices.ts
+++ b/src/app/main/webservices.ts
@@ -338,4 +338,10 @@ export class WebServiceIpc {
         const key = 'WebServicePersistentData.' + nsoAccount.user.nsaId + '.' + webservice.id;
         await store.storage.setItem(key, data);
     }
+
+    async completeLoading(event: IpcMainInvokeEvent): Promise<void> {
+        const {nsoAccount, webservice} = this.getWindowData(event.sender);
+
+        debug('Web service %s, user %s, called completeLoading', webservice.name, nsoAccount.user.name);
+    }
 }
diff --git a/src/app/preload-webservice/ipc.ts b/src/app/preload-webservice/ipc.ts
index b505c34..a056d3a 100644
--- a/src/app/preload-webservice/ipc.ts
+++ b/src/app/preload-webservice/ipc.ts
@@ -14,6 +14,7 @@ const ipc = {
     requestGameWebToken: () => ipcRenderer.invoke('nxapi:webserviceapi:requestGameWebToken') as Promise<string>,
     restorePersistentData: () => ipcRenderer.invoke('nxapi:webserviceapi:restorePersistentData') as Promise<string | undefined>,
     storePersistentData: (data: string) => ipcRenderer.invoke('nxapi:webserviceapi:storePersistentData', data) as Promise<void>,
+    completeLoading: () => ipcRenderer.invoke('nxapi:webserviceapi:completeLoading') as Promise<void>,
 };
 
 export default ipc;
diff --git a/src/app/preload-webservice/znca-js-api.ts b/src/app/preload-webservice/znca-js-api.ts
index a2fa0c3..2330d74 100644
--- a/src/app/preload-webservice/znca-js-api.ts
+++ b/src/app/preload-webservice/znca-js-api.ts
@@ -29,7 +29,7 @@ declare global {
         onPersistentDataRestore?: (data: string) => void;
         // NookLink
         storePersistentData?: (data: string) => void;
-        onPersistentDataStore?: () => void;
+        onPersistentDataStore?: (data: string) => void;
 
         // NookLink
         openQRCodeReader?: (data: string) => void;
@@ -40,6 +40,18 @@ declare global {
         closeQRCodeReader?: () => void;
         // NookLink
         closeQRCodeReaderFromPhotoLibrary?: () => void;
+
+        // Unused
+        sendMessage?(data: string): void;
+        // Unused
+        copyToClipboard?(data: string): void;
+
+        openQRCodeReaderForCheckin?(data: string): void;
+        onQRCodeReadForCheckin?(data: string): void;
+        downloadImages?(imagesJson: string): void;
+        completeLoading?(): void;
+        closeWebView?(): void;
+        reloadExtension?(): void;
     }
 }
 
@@ -109,7 +121,7 @@ function storePersistentData(data: string) {
     debug('storePersistentData called', data);
 
     ipc.storePersistentData(data).then(() => {
-        window.onPersistentDataStore?.call(null);
+        window.onPersistentDataStore?.call(null, '');
     });
 }
 
@@ -146,7 +158,52 @@ function closeQrCodeReaderFromPhotoLibrary() {
     //
 }
 
+function openQRCodeReaderForCheckin(data: string) {
+    //
+
+    Promise.resolve().then(() => {
+        const base64EncodeText = '';
+        window.onQRCodeReadForCheckin?.call(null, base64EncodeText);
+    });
+}
+
 window.openQRCodeReader = openQrCodeReader;
 window.openQRCodeReaderFromPhotoLibrary = openQrCodeReaderFromPhotoLibrary;
 window.closeQRCodeReader = closeQrCodeReader;
 window.closeQRCodeReaderFromPhotoLibrary = closeQrCodeReaderFromPhotoLibrary;
+window.openQRCodeReaderForCheckin = openQRCodeReaderForCheckin;
+
+//
+// Other
+//
+
+function sendMessage(data: string) {
+    //
+}
+
+function copyToClipboard(data: string) {
+    //
+}
+
+function downloadImages(imagesJson: string) {
+    //
+}
+
+function completeLoading() {
+    ipc.completeLoading();
+}
+
+function closeWebView() {
+    window.close();
+}
+
+function reloadExtension() {
+    //
+}
+
+window.sendMessage = sendMessage;
+window.copyToClipboard = copyToClipboard;
+window.downloadImages = downloadImages;
+window.completeLoading = completeLoading;
+window.closeWebView = closeWebView;
+window.reloadExtension = reloadExtension;