Allows dapp to override the session key

Author: arch1995

src/Web3Auth.ts

@@ -43,7 +43,7 @@ import {
 import { decodeToken } from "./utils";
 
 export class Web3Auth extends SafeEventEmitter<Web3AuthSfaEvents> implements IWeb3Auth {
-  readonly coreOptions: Omit<Web3AuthOptions, "storage"> & { storage: IAsyncStorage | IStorage | ISecureStore };
+  readonly coreOptions: Omit<Web3AuthOptions, "storage"> & { storage: IAsyncStorage | IStorage | ISecureStore; sessionKey?: string };
 
   readonly connectedAdapterName = WALLET_ADAPTERS.SFA;
 
@@ -73,7 +73,7 @@ export class Web3Auth extends SafeEventEmitter<Web3AuthSfaEvents> implements IWe
 
   private plugins: Record<string, IPlugin> = {};
 
-  constructor(options: Web3AuthOptions) {
+  constructor(options: Web3AuthOptions & { sessionKey?: string }) {
     super();
     if (!options.clientId) throw WalletInitializationError.invalidParams("Please provide a valid clientId in constructor");
     if (!options.privateKeyProvider) throw WalletInitializationError.invalidParams("Please provide a valid privateKeyProvider in constructor");
@@ -126,7 +126,9 @@ export class Web3Auth extends SafeEventEmitter<Web3AuthSfaEvents> implements IWe
       throw WalletInitializationError.invalidParams("provider should have chainConfig and should be initialized with chainId and chainNamespace");
     }
 
-    const storageKey = `${this.baseStorageKey}_${this.coreOptions.chainConfig.chainNamespace === CHAIN_NAMESPACES.SOLANA ? "solana" : "eip"}_${this.coreOptions.usePnPKey ? "pnp" : "core_kit"}`;
+    const storageKey =
+      this.coreOptions.sessionKey ||
+      `${this.baseStorageKey}_${this.coreOptions.chainConfig.chainNamespace === CHAIN_NAMESPACES.SOLANA ? "solana" : "eip"}_${this.coreOptions.usePnPKey ? "pnp" : "core_kit"}`;
     this.currentStorage = new AsyncStorage(storageKey, this.coreOptions.storage);
     this.nodeDetails = fetchLocalConfig(this.coreOptions.web3AuthNetwork, KEY_TYPE.SECP256K1);
     this.authInstance = new Torus({