# Send a Multisig Transaction

A web application may request Adena to broadcast a multisig transaction via the `BroadcastMultisigTransaction` method. This method allows you to submit a transaction along with the collected signatures from authorized signers. Upon the user's approval, Adena will broadcast the transaction to the blockchain.

**Note:** Unlike the UI-based broadcast method where you upload .tx and .sig files, the injection method manages all transaction data and signatures through code.

### Code

```typescript
adena.BroadcastMultisigTransaction(
  multisigDocument: MultisigTransactionDocument,
  multisigSignatures?: Signature[]
)
```

### Params

| Key                | Type   | Description                          |
| ------------------ | ------ | ------------------------------------ |
| multisigDocument   | object | Multisig Transaction Document Model  |
| multisigSignatures | array  | Array of Signature Models (optional) |

#### Multisig Transaction Document Model

| Key           | Type   | Description                                                                |
| ------------- | ------ | -------------------------------------------------------------------------- |
| tx            | RawTx  | The raw transaction object containing messages, fees, signatures, and memo |
| chainId       | string | The chain ID of the target blockchain (e.g., "staging", "portal-loop")     |
| accountNumber | string | The account number of the multisig account                                 |
| sequence      | string | The sequence number of the multisig account                                |

#### RawTx Model

| Key             | Type                    | Description                                                              |
| --------------- | ----------------------- | ------------------------------------------------------------------------ |
| msg             | RawTxMessageType\[]     | Array of transaction messages (BankSend, VmCall, VmAddPackage, or VmRun) |
| fee             | object                  | Fee object containing gas\_wanted and gas\_fee                           |
| fee.gas\_wanted | string                  | The maximum gas units allowed for the transaction                        |
| fee.gas\_fee    | string                  | The gas fee amount with denomination (e.g., "6113ugnot")                 |
| signatures      | RawSignature\[] \| null | Array of signatures or null if unsigned                                  |
| memo            | string                  | Optional memo text for the transaction                                   |

#### RawTxMessageType

| Message Type           | Description                                              |
| ---------------------- | -------------------------------------------------------- |
| RawBankSendMessage     | Message for sending tokens from one address to another   |
| RawVmCallMessage       | Message for calling a function in a Gno realm or package |
| RawVmAddPackageMessage | Message for adding a new package to the blockchain       |
| RawVmRunMessage        | Message for running Gno code                             |

#### Signature Model

| Key            | Type   | Description                                   |
| -------------- | ------ | --------------------------------------------- |
| pub\_key       | object | Public key object                             |
| pub\_key.type  | string | Public key type (e.g., `/tm.PubKeySecp256k1`) |
| pub\_key.value | string | Base64-encoded public key                     |
| signature      | string | Base64-encoded signature                      |

### Response

| Key     | Type   | Description                                 |
| ------- | ------ | ------------------------------------------- |
| code    | number | Code (success: 0)                           |
| status  | string | Returns success or failure                  |
| type    | string | Response type                               |
| message | string | Descriptive message of the result           |
| data    | object | Broadcast Multisig Transaction Result Model |

#### Broadcast Multisig Transaction Result Model

| Key         | Type   | Description      |
| ----------- | ------ | ---------------- |
| check\_tx   | object | CheckTx result   |
| deliver\_tx | object | DeliverTx result |
| hash        | string | Transaction hash |
| height      | string | Block height     |

### Sample Request

```typescript
await adena.BroadcastMultisigTransaction({
  tx: {
    msg: [
      {
        "@type": "/vm.m_call",
        func: "Approve",
        pkg_path: "gno.land/r/gnoland/wugnot",
        args: ["g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5", "100"],
        caller: "g1ksdqtg675y28vkua8zrghxzlgwtpyxwklp5gpf",
        send: "",
      },
    ],
    fee: {
      gas_wanted: "6112955",
      gas_fee: "6113ugnot",
    },
    signatures: [],
    memo: "",
  },
  chainId: "staging",
  accountNumber: "6224",
  sequence: "0",
}, [{
  "pub_key": {
    "@type": "/tm.PubKeySecp256k1",
    "value": "A+FhNtsXHjLfSJk1lB8FbiL4mGPjc50Kt81J7EKDnJ2y"
  },
  "signature": "..."
}]);

```

**Important:** Replace the following fields with your actual transaction details:

* `caller`: Your multisig account address
* `chainId`: Your target chain ID
* `accountNumber` and `sequence`: Your account's current values
* Signatures array: The collected signatures from authorized signers

### Sample Response

```json
{
    "status": "success",
    "data": {
        "broadcastResult": {
            "check_tx": {
                "ResponseBase": {
                    "Error": null,
                    "Data": "",
                    "Events": [],
                    "Log": "msg:0,success:true,log:,events:[]",
                    "Info": ""
                },
                "GasWanted": "6112955",
                "GasUsed": "35800"
            },
            "deliver_tx": {
                "ResponseBase": {
                    "Error": null,
                    "Data": "",
                    "Events": [],
                    "Log": "msg:0,success:true,log:,events:[]",
                    "Info": ""
                },
                "GasWanted": "6112955",
                "GasUsed": "65724"
            },
            "hash": "sd643Z4flCIe3YHMYIYKtVcNrb1paVWSe6vRGlRHABc=",
            "height": "4769"
        },
        "txExplorerUrl": "https://gnoscan.io/transactions/details?chainId=staging&txhash=sd643Z4flCIe3YHMYIYKtVcNrb1paVWSe6vRGlRHABc="
    },
    "code": 0,
    "message": "Transaction has been successfully executed.",
    "type": "TRANSACTION_SUCCESS"
}
```


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