How can i create the multisignature address using cli (Json rpc or web3)

Question

I need to integrate the multisignature wallet on my website. But the multisignature option only provided on the mist process so how i can integrate with site. I need the API

Answer 1

Both JS api and RPC methods are possible.

Creating a contract using the web3 JS api:

You only need a running node to connect your web3 and the contract source code.

Then you could have a look at the web3 api wiki and use the Ethereum Wallet Dapp multisig contract source code.

First, compile the source code (using solc is nice or from an RPC call) then use the compiled EVM bytecode in web3.eth.contract(abi).new function.

var MyContract = web3.eth.contract(abiArray);

// instantiate by address
var contractInstance = MyContract.at([address]);

// deploy new contract
var contractInstance = MyContract.new([contructorParam1] [, contructorParam2], {data: '0x12345...', from: myAccount, gas:1000000});

Create a contract using an RPC node:

First generate the contract data instead of directly creating it (use of getData() instead of the new() shown above):

// Get the data to deploy the contract manually
var contractData = MyContract.new.getData([contructorParam1] [, contructorParam2], {data: '0x12345...'});
// contractData = '0x12345643213456000000000023434234'

Then use this data to generate a transaction using RPC on a node. Just put the evm bytecode data in the transaction data field and the EVM will create the contract.