Bidders

Bid on flow and get exclusive transactions by following these steps:
(1) Create an account
Navigate to mbs.merkle.io, create an account and complete the necessary verification steps.
(2) Connect to the websocket
Connect to the following websocket:
wss://flow.merkle.io/<private key>
Then, subscribe to the new transaction with the following rpc message:
{"jsonrpc": "2.0", "method": "eth_subsribe", "params": ["mkl_transactions"]}
The RPC server will respond with a subscription confirmation:
{
    "jsonrpc": "2.0",
    "method": "eth_subscription"
    "params": {
        "subscription": "<subscription id>",
        "result": {
            "hash": string, // the hash of the transaction
            "unsignedTx": "0x..." // hex-encoded unsigned transaction
            "unsignedTxFrom": "0x...." // the transaction sender
        }
    }
}
(3) Make a bid
Bids are made on a list of transactions, lists can be 1 or more transactions. Make a bid by sending the following RPC message to the flow server:
{
    "jsonrpc": "2.0",
    "method": "mkl_bid",
    "params": [
        [
            // list of transcation hashes to bid on
            "0x.....",
            "0x.....",
        ],
        10.3, // bid in ETH
    ]
}
Flow will respond with a bid id:
{
    "jsonrpc": "2.0",
    "result": "3647542a-02d3-4259-80e3-bcd481691d75",
}
(4) Delivery
Flow will deliver transactions exactly 2s before the next block. Subscribe to deliveries using the following rpc subscription:
{"jsonrpc": "2.0", "method": "eth_subsribe", "params": ["mkl_delivery"]}
The delivery message will have the following format:
{
    "jsonrpc": "2.0",
    "method": "eth_subscription"
    "params": {
        "subscription": "<subscription id>",
        "result": {
            "bidId": string, // the bid id
            "signedTxs": string[] // list of signed transactions
        }
    }
}
Last modified 5d ago