Building Batched Streams in Safe

If you have a Safe and are looking to send multiple streams in one transaction rather than having to manually execute each one, this guide will show you how it's done.

1. Go to the Safe Transaction Builder

Safe Transaction Builder Interface

2. Get CFAv1Forwarder Address

Find the CFAv1Forwarder address for the desired network below:

Network	Address
Ethereum Mainnet, Polygon, Gnosis Chain, Optimism, Arbitrum, Avalanche, BNB Chain, Goerli, Arbitrum Goerli, Optimism Goerli, Mumbai	0xcfA132E353cB4E398080B9700609bb008eceB125
Avalanche Fuji	0x2CDd45c5182602a36d391F7F16DD9f8386C3bD8D

Paste that address in the Enter Address or ENS Name box on the Transaction Builder interface.

3. Copy CFAv1Forwarder ABI

Copy the ABI below and paste it in the Enter ABI box in the Transaction Builder interface.

Expand for CFAv1Forwarder ABI

[
{
  "inputs": [
    {
      "internalType": "contract ISuperfluid",
      "name": "host",
      "type": "address"
    }
  ],
  "stateMutability": "nonpayable",
  "type": "constructor"
},
{
  "inputs": [],
  "name": "CFA_FWD_INVALID_FLOW_RATE",
  "type": "error"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "sender",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "receiver",
      "type": "address"
    },
    {
      "internalType": "int96",
      "name": "flowrate",
      "type": "int96"
    },
    {
      "internalType": "bytes",
      "name": "userData",
      "type": "bytes"
    }
  ],
  "name": "createFlow",
  "outputs": [
    {
      "internalType": "bool",
      "name": "",
      "type": "bool"
    }
  ],
  "stateMutability": "nonpayable",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "sender",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "receiver",
      "type": "address"
    },
    {
      "internalType": "bytes",
      "name": "userData",
      "type": "bytes"
    }
  ],
  "name": "deleteFlow",
  "outputs": [
    {
      "internalType": "bool",
      "name": "",
      "type": "bool"
    }
  ],
  "stateMutability": "nonpayable",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "account",
      "type": "address"
    }
  ],
  "name": "getAccountFlowInfo",
  "outputs": [
    {
      "internalType": "uint256",
      "name": "lastUpdated",
      "type": "uint256"
    },
    {
      "internalType": "int96",
      "name": "flowrate",
      "type": "int96"
    },
    {
      "internalType": "uint256",
      "name": "deposit",
      "type": "uint256"
    },
    {
      "internalType": "uint256",
      "name": "owedDeposit",
      "type": "uint256"
    }
  ],
  "stateMutability": "view",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "account",
      "type": "address"
    }
  ],
  "name": "getAccountFlowrate",
  "outputs": [
    {
      "internalType": "int96",
      "name": "flowrate",
      "type": "int96"
    }
  ],
  "stateMutability": "view",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "int96",
      "name": "flowrate",
      "type": "int96"
    }
  ],
  "name": "getBufferAmountByFlowrate",
  "outputs": [
    {
      "internalType": "uint256",
      "name": "bufferAmount",
      "type": "uint256"
    }
  ],
  "stateMutability": "view",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "sender",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "receiver",
      "type": "address"
    }
  ],
  "name": "getFlowInfo",
  "outputs": [
    {
      "internalType": "uint256",
      "name": "lastUpdated",
      "type": "uint256"
    },
    {
      "internalType": "int96",
      "name": "flowrate",
      "type": "int96"
    },
    {
      "internalType": "uint256",
      "name": "deposit",
      "type": "uint256"
    },
    {
      "internalType": "uint256",
      "name": "owedDeposit",
      "type": "uint256"
    }
  ],
  "stateMutability": "view",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "sender",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "flowOperator",
      "type": "address"
    }
  ],
  "name": "getFlowOperatorPermissions",
  "outputs": [
    {
      "internalType": "uint8",
      "name": "permissions",
      "type": "uint8"
    },
    {
      "internalType": "int96",
      "name": "flowrateAllowance",
      "type": "int96"
    }
  ],
  "stateMutability": "view",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "sender",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "receiver",
      "type": "address"
    }
  ],
  "name": "getFlowrate",
  "outputs": [
    {
      "internalType": "int96",
      "name": "flowrate",
      "type": "int96"
    }
  ],
  "stateMutability": "view",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "flowOperator",
      "type": "address"
    }
  ],
  "name": "grantPermissions",
  "outputs": [
    {
      "internalType": "bool",
      "name": "",
      "type": "bool"
    }
  ],
  "stateMutability": "nonpayable",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "flowOperator",
      "type": "address"
    }
  ],
  "name": "revokePermissions",
  "outputs": [
    {
      "internalType": "bool",
      "name": "",
      "type": "bool"
    }
  ],
  "stateMutability": "nonpayable",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "receiver",
      "type": "address"
    },
    {
      "internalType": "int96",
      "name": "flowrate",
      "type": "int96"
    }
  ],
  "name": "setFlowrate",
  "outputs": [
    {
      "internalType": "bool",
      "name": "",
      "type": "bool"
    }
  ],
  "stateMutability": "nonpayable",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "sender",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "receiver",
      "type": "address"
    },
    {
      "internalType": "int96",
      "name": "flowrate",
      "type": "int96"
    }
  ],
  "name": "setFlowrateFrom",
  "outputs": [
    {
      "internalType": "bool",
      "name": "",
      "type": "bool"
    }
  ],
  "stateMutability": "nonpayable",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "sender",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "receiver",
      "type": "address"
    },
    {
      "internalType": "int96",
      "name": "flowrate",
      "type": "int96"
    },
    {
      "internalType": "bytes",
      "name": "userData",
      "type": "bytes"
    }
  ],
  "name": "updateFlow",
  "outputs": [
    {
      "internalType": "bool",
      "name": "",
      "type": "bool"
    }
  ],
  "stateMutability": "nonpayable",
  "type": "function"
},
{
  "inputs": [
    {
      "internalType": "contract ISuperToken",
      "name": "token",
      "type": "address"
    },
    {
      "internalType": "address",
      "name": "flowOperator",
      "type": "address"
    },
    {
      "internalType": "uint8",
      "name": "permissions",
      "type": "uint8"
    },
    {
      "internalType": "int96",
      "name": "flowrateAllowance",
      "type": "int96"
    }
  ],
  "name": "updateFlowOperatorPermissions",
  "outputs": [
    {
      "internalType": "bool",
      "name": "",
      "type": "bool"
    }
  ],
  "stateMutability": "nonpayable",
  "type": "function"
}
]

4. Line Up Streaming Transactions

Now you'll be able to set up each stream transaction for the batch one at a time. If you're looking to create streams, select the createFlow method.

Interface for setting up streaming transactions

Function Parameters

• token (address): Super Token you're streaming
• sender (address): Your Safe address
• receiver (address): The receiver's address
• flowrate (int96): Flow rate in seconds
• userData (bytes): Enter 0x.

Hit Add Transaction and repeat for each stream you'd like to send.

info

Flow Rate is always in wei/second. Super Tokens always have 18 decimals of precision.

For example, to stream 1000 DAIx/month to Alice:

flowrate = 1,000 _ (10^18) / ( seconds in month ) = 1,000 _ (10^18) / 2628000 = 380517503805175

5. Create and Send the Batch

Once you've added all operations to the batch, click "Create Batch" and then "Send Batch". After execution, your streams should be running.

You can check out the Superfluid Safe App to see the streams in action and conduct necessary modifications.