feat: export hasShares function

src/index.ts

@@ -3,3 +3,4 @@ export { StakingProvider } from './provider';
 export { type StakingContextType } from './context';
 export { stakingAbi } from './abis/staking';
 export { config as stakingConfig } from './config';
+export { hasShares } from './utils/shares';

src/provider.tsx

@@ -30,8 +30,8 @@ import {
   unstakeAll,
   withdraw,
   withdrawAll,
-} from './utils';
-import { sleep } from './sleep';
+} from './utils/staking';
+import { sleep } from './utils/sleep';
 import { useWeb3Provider } from './hooks/useWeb3Provider';
 import { Stream } from './types/stream';
 import { Withdrawal } from './types/withdrawal';

src/utils/shares.ts

@@ -0,0 +1,21 @@
+import { providers } from 'ethers';
+import { AuroraNetwork } from '../types/network';
+import { config } from '../config';
+import { getUserShares } from './staking';
+
+/**
+ * Confirm that a user's account has shares.
+ */
+export const hasShares = async (
+  network: AuroraNetwork,
+  address: string,
+): Promise<boolean> => {
+  const networkConfig = config[network];
+  const { rpcUrl } = networkConfig;
+  const provider = new providers.JsonRpcProvider(rpcUrl);
+
+  // Confirm that account has shares
+  const userShares = await getUserShares(address, 0, provider, networkConfig);
+
+  return !userShares.isZero();
+};

src/utils.ts → src/utils/staking.ts

@@ -1,8 +1,8 @@
 import { BigNumber, ethers, providers } from 'ethers';
-import { stakingAbi } from './abis/staking';
-import { erc20abi } from './abis/erc20';
-import { AuroraNetworkConfig } from './types/network';
-import { logger } from './logger';
+import { stakingAbi } from '../abis/staking';
+import { erc20abi } from '../abis/erc20';
+import { AuroraNetworkConfig } from '../types/network';
+import { logger } from '../logger';
 
 export const getDeposit = async (
   account: string,