> ## Documentation Index
> Fetch the complete documentation index at: https://docs.p2p.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Sign and Broadcast Transaction

> To complete any bonding or withdrawal operation on Aptos, sign the unsigned transaction provided by the Staking API and broadcast it to the network.

## 1. Prepare the transaction

Retrieve an unsigned serialized transaction from the relevant API endpoint, e.g., `/staking/delegated/add`,`/staking/delegated/reactivate`, `/staking/delegated/withdraw`.

## 2. Sign the transaction

Use the [P2P Signer SDK](/docs/signer-sdk-overview) to sign the unsigned data following protocol specific configuration.

## 3. Send the transaction

Send the signed transaction to the Aptos network by making a POST request to [/api/v1/aptos/\{network}/transaction/send](/reference/aptos-transaction-send).

Example request:

<CodeGroup>
  ```bash curl theme={null}
  curl --request POST \
       --url https://api.p2p.org/api/v1/aptos/mainnet/transaction/send \
       --header 'accept: application/json' \
       --head 'Authorization: Bearer <token>' \
       --header 'content-type: application/json' \
       --data '
  {
    "transaction": "0x0020b92f133c8e4768d990f39853f1931eb0481ea289a985687f0b7e59e83456333140d386bb294c9a3ce9c8e6b49c4d6dba1bbf4d99b7803f9947bcec59855414d064bf138d29c14e884fb0e7f18c35fd39ffcae96fe767a3ddcbdc6603e407673006",
    "signature": "0x0020b92f133c8e4768d990f39853f1931eb0481ea289a985687f0b7e59e83456333140960e71dc383c5e0660940bbe476499ed8b64bc37efff47db1c20274f20b39d5858737269d6c7bcb1b9fc88dce0f0f7cc12b5e86516cf9f8d787827eaedf9f906"
  }
  '
  ```

  ```typescript TypeScript theme={null}
  const response = await fetch("https://api.p2p.org/api/v1/aptos/mainnet/transaction/send", {
    method: "POST",
    headers: {
      "Authorization": "Bearer <token>",
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      transaction: "0x0020b92f133c8e4768d990f39853f1931eb0481ea289a985687f0b7e59e83456333140d386bb294c9a3ce9c8e6b49c4d6dba1bbf4d99b7803f9947bcec59855414d064bf138d29c14e884fb0e7f18c35fd39ffcae96fe767a3ddcbdc6603e407673006",
      signature: "0x0020b92f133c8e4768d990f39853f1931eb0481ea289a985687f0b7e59e83456333140960e71dc383c5e0660940bbe476499ed8b64bc37efff47db1c20274f20b39d5858737269d6c7bcb1b9fc88dce0f0f7cc12b5e86516cf9f8d787827eaedf9f906",
    }),
  });
  const data = await response.json();
  console.log(data);
  ```

  ```python Python theme={null}
  import requests

  response = requests.post(
      "https://api.p2p.org/api/v1/aptos/mainnet/transaction/send",
      headers={
          "Authorization": "Bearer <token>",
          "Content-Type": "application/json",
      },
      json={
          "transaction": "0x0020b92f133c8e4768d990f39853f1931eb0481ea289a985687f0b7e59e83456333140d386bb294c9a3ce9c8e6b49c4d6dba1bbf4d99b7803f9947bcec59855414d064bf138d29c14e884fb0e7f18c35fd39ffcae96fe767a3ddcbdc6603e407673006",
          "signature": "0x0020b92f133c8e4768d990f39853f1931eb0481ea289a985687f0b7e59e83456333140960e71dc383c5e0660940bbe476499ed8b64bc37efff47db1c20274f20b39d5858737269d6c7bcb1b9fc88dce0f0f7cc12b5e86516cf9f8d787827eaedf9f906",
      },
  )
  print(response.json())
  ```

  ```go Go theme={null}
  package main

  import (
  	"bytes"
  	"encoding/json"
  	"fmt"
  	"io"
  	"net/http"
  )

  func main() {
  	payload := map[string]interface{}{
  		"transaction": "0x0020b92f133c8e4768d990f39853f1931eb0481ea289a985687f0b7e59e83456333140d386bb294c9a3ce9c8e6b49c4d6dba1bbf4d99b7803f9947bcec59855414d064bf138d29c14e884fb0e7f18c35fd39ffcae96fe767a3ddcbdc6603e407673006",
  		"signature":   "0x0020b92f133c8e4768d990f39853f1931eb0481ea289a985687f0b7e59e83456333140960e71dc383c5e0660940bbe476499ed8b64bc37efff47db1c20274f20b39d5858737269d6c7bcb1b9fc88dce0f0f7cc12b5e86516cf9f8d787827eaedf9f906",
  	}
  	body, _ := json.Marshal(payload)
  	req, _ := http.NewRequest("POST", "https://api.p2p.org/api/v1/aptos/mainnet/transaction/send", bytes.NewBuffer(body))
  	req.Header.Set("Authorization", "Bearer <token>")
  	req.Header.Set("Content-Type", "application/json")
  	resp, _ := http.DefaultClient.Do(req)
  	defer resp.Body.Close()
  	respBody, _ := io.ReadAll(resp.Body)
  	fmt.Println(string(respBody))
  }
  ```
</CodeGroup>

* `transaction` — signed transaction in the hexadecimal format which needs to be broadcasted to the network.
* `signature` — delegator signature of the transaction.

Example response:

<CodeGroup>
  ```json theme={null}
  {
      "result": {
        "network": "mainnet",
        "senderAddress": "0xa571a5bc9b1bfd5fe58e6e09a5be251a3299985494d022959ce206f1f23f752e",
        "transaction": "0x0020b92f133c8e4768d990f39853f1931eb0481ea289a985687f0b7e59e83456333140d386bb294c9a3ce9c8e6b49c4d6dba1bbf4d99b7803f9947bcec59855414d064bf138d29c14e884fb0e7f18c35fd39ffcae96fe767a3ddcbdc6603e407673006",
        "status": "success",
        "transactionHash": "0x8d80b8ed85b578eeb873731101a926221701ee48318f6c9b83895f7ac1535640",
        "gas": {
          "unitPrice": 100,
          "maxGasLimit": 100,
          "used": 100
        },
        "createdAt": "2023-08-24T08:14:50.455Z"
      },
      "error": {}
    }
  ```
</CodeGroup>

* `network` — Aptos network: `mainnet` or `testnet`.

* `senderAddress` — transaction sender address.

* `transaction` — signed transaction in hexadecimal format.

* `status` — transaction status: `pending`, `success`, or `failed`.

* `transactionHash` — hash of the transaction.

* `gas` — computational effort required to execute the transaction, measured in gas units.

  * `unitPrice` — price per unit of gas in Octas for processing the Aptos transaction.
  * `maxGasLimit` — maximum gas limit for the transaction.
  * `used` — amount of gas spent for the transaction.

* `createdAt` — timestamp of the transaction in the ISO 8601 format.


## Related topics

- [Getting Started](/docs/getting-started-aptos.md)
- [Withdrawal](/docs/withdrawal-aptos.md)
- [Staking API reference](/reference/aptos-staking-delegated-add.md)