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How to serialize a transaction from mempool and sign it into a bundle

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
15/100
Issue type
Documentation
Clarity
Needs clarification
Activity status
Stale
Tech stack
javascript, typescript
Domain
backend-api-design, blockchain

Research direction

Start with the ethers.utils.serializeTransaction call and the signBundle usage shown in the issue, then compare them with the repository's bundle examples and serialization requirements. Done means there is a documented, reproducible answer for handling the supplied mempool transaction, including the required fields and signing constraints.

Written by the indexing model from the issue text.

Description

i just test signBundle via flashbots, i feel confused. there is the code


// the transaction is get from geth mempool
const transaction = {
                    "blockHash": null,
                    "blockNumber": null,
                    "from": "0x0160ea15d2125dd9c211f23169c4e4f4fb7957a8",
                    "gas": "0x4c4b40",
                    "gasPrice": "0x1ca10",
                    "hash": "0x696968e15c7174609adca25769c4e7c0e2c18d1eedbca8e4b71e3a0f59c52797",
                    "input": "0xc652885f0000000000000000000000009bd2aa38429c356be17c8c7bb07dab299200eeb84178ca8820c1a8dae966f1fdd132a2a874394233000000000000000000000054000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000010000000000000000000000004178ca8820c1a8dae966f1fdd132a2a8743942330000000000000000000000000000000000000000000000000000000000000320",
                    "nonce": "0x163",
                    "to": "0x7ede79ed0d3acf3d4843c919975fb7bd97ecccba",
                    "transactionIndex": null,
                    "value": "0x0",
                    "type": "0x0",
                    "chainId": "0x5",
                    "v": "0x2e",
                    "r": "0xf4556687cb3df0f345ab903a2c9c46bb1a9fb413a0f498e8dba3b74253caa313",
                    "s": "0x281adb2e3f2b73c685aaaec10120b9ade46d6c2cd069d1106ae5093833d0bbf1"
};

const signedBundle = await flashbotsProvider.signBundle([
        {
          signer: transactionFromSigner.connect(provider),
          transaction: {
            ...baseTransaction,
            gasPrice: '',
            data: '0x'
          },
        },
        {
            // there, i don't know how to serialize transaction from mempool
            signedTransaction: ethers.utils.serializeTransaction(transaction)
        }
    ]);
Dominant language
TypeScript
Stars
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Forks
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