Common Transaction Parameters

There are common parameters that can be set for all Hiero transaction types. This document specifies a common JSON object that should be added to all transactions that encapsulates these common parameters.

Transaction Parameter Object Definition

Parameter Name	Type	Required/Optional	Description/Notes
transactionId	string	optional	This can be the full transaction ID with account ID and valid start time, or just the account ID if the start time doesn't matter.
maxTransactionFee	int64	optional	Units of tinybars
validTransactionDuration	int64	optional	Units of seconds
memo	string	optional
regenerateTransactionId	bool	optional
signers	list	optional	List of DER-encoded hex strings of all additional private keys required to sign.

Example Usage

If the createAccount method were to contain this object and name it "commonTransactionParams", its usage would look like:

{
  "jsonrpc": "2.0",
  "id": 99232,
  "method": "createAccount",
  "params": {
    "key": "302a300506032b6570032100e9a0f9c81b3a2bb81a4af5fe05657aa849a3b9b0705da1fb52f331f42cf4b496",
    "receiverSignatureRequired": true,
    "commonTransactionParams": {
      "signers": [
        "302e020100300506032b65700422042031f8eb3e77a04ebe599c51570976053009e619414f26bdd39676a5d3b2782a1d"
      ]
    }
  }
}