> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getpara.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Execute Transactions with Cosmos Libraries
> Interact with Cosmos modules and execute complex transactions using CosmJS
Execute custom messages and interact with Cosmos modules using CosmJS with Para wallets in React Native.
## Prerequisites
## Execute Custom Messages
```typescript theme={null}
import { useMemo } from 'react';
import { View, Text, Button } from 'react-native';
import { useParaCosmjsProtoSigner, useParaCosmjsSignAndBroadcast } from '@getpara/react-native-wallet/cosmos';
import { SigningStargateClient, coins } from '@cosmjs/stargate';
import { MsgSend } from 'cosmjs-types/cosmos/bank/v1beta1/tx';
const RPC_URL = 'https://rpc.cosmos.directory/cosmoshub';
function CustomTransaction() {
const { protoSigner, isLoading } = useParaCosmjsProtoSigner();
const address = protoSigner?.address;
const client = useMemo(
() => protoSigner ? SigningStargateClient.connectWithSigner(RPC_URL, protoSigner) : undefined,
[protoSigner]
);
const { signAndBroadcastAsync, isPending } = useParaCosmjsSignAndBroadcast(protoSigner, client);
const executeCustomMessage = async () => {
if (!protoSigner || !address) return;
const msgSend = {
typeUrl: '/cosmos.bank.v1beta1.MsgSend',
value: MsgSend.fromPartial({
fromAddress: address,
toAddress: 'cosmos1...',
amount: coins(1000000, 'uatom'),
}),
};
const fee = {
amount: coins(5000, 'uatom'),
gas: '200000',
};
try {
const result = await signAndBroadcastAsync({
messages: [msgSend],
fee,
memo: 'Custom message via Para',
});
console.log('Transaction hash:', result.transactionHash);
console.log('Code:', result.code);
} catch (error) {
console.error('Transaction failed:', error);
}
};
if (isLoading) return Loading...;
return (
From: {address}
);
}
```
## Next Steps