---
title: signAndSendTransaction
description:
  Signs a transaction and immediately broadcasts it to the Solana network.
---

## JSON-RPC Request

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "signAndSendTransaction",
  "params": {
    "transaction": "base64EncodedTransaction"
  }
}
```

## JSON-RPC Response

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "signature": "base58Signature",
    "signed_transaction": "base64EncodedTransaction",
    "signer_pubkey": "3Z1Ef7YaxK8oUMoi6exf7wYZjZKWJJsrzJXSt1c3qrDE"
  }
}
```

## cURL Example

```bash
curl -X POST http://localhost:8080 \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"signAndSendTransaction","params":{"transaction":"base64EncodedTransaction"}}'
```

## TypeScript SDK

```typescript
const result = await client.signAndSendTransaction({
  transaction: "base64EncodedTransaction"
});
console.log("Transaction signature:", result.signature);
```