Stake Tokens to Validators

import { View, Text, Button } from 'react-native';
import { useParaCosmos } from './hooks/useParaCosmos';
import { SigningStargateClient, coins } from '@cosmjs/stargate';
import { MsgDelegate } from 'cosmjs-types/cosmos/staking/v1beta1/tx';

const RPC_URL = 'https://rpc.cosmos.directory/cosmoshub';

function StakeTokens() {
  const { protoSigner, address, isLoading } = useParaCosmos();

  const delegateToValidator = async () => {
    if (!protoSigner || !address) return;

    const validator = 'cosmosvaloper1...';

    const msgDelegate = {
      typeUrl: '/cosmos.staking.v1beta1.MsgDelegate',
      value: MsgDelegate.fromPartial({
        delegatorAddress: address,
        validatorAddress: validator,
        amount: {
          denom: 'uatom',
          amount: '1000000',
        },
      }),
    };

    const fee = {
      amount: coins(5000, 'uatom'),
      gas: '250000',
    };

    try {
      const client = await SigningStargateClient.connectWithSigner(RPC_URL, protoSigner);

      const result = await client.signAndBroadcast(
        address,
        [msgDelegate],
        fee,
        'Staking with Para'
      );

      console.log('Delegation successful:', result.transactionHash);
    } catch (error) {
      console.error('Delegation failed:', error);
    }
  };

  if (isLoading) return <Text>Loading...</Text>;

  return (
    <View>
      <Text>Delegator: {address}</Text>
      <Button title="Stake 1 ATOM" onPress={delegateToValidator} />
    </View>
  );
}