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

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

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

{
    "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"
}