StakeWise Deposit Data Parser

StakeWise Deposit Data Parser is a comprehensive TypeScript package designed to facilitate the processing and validation of deposit data files within blockchain applications. Tailored for developers working on staking platforms, blockchain validators, or any applications requiring meticulous deposit data verification and processing, particularly in the context of the StakeWise ecosystem.

Features

• Json Validation: Ensures the input data meets specified criteria, effectively preventing the processing of invalid or corrupted json.
• Deposit Data Extraction: Parses deposit data from files, preparing it for further processing or verification.
• Public Key Verification: Validates the uniqueness and format of public keys within the deposit data to ensure data integrity.
• Signature Verification: Leverages BLS (Boneh-Lynn-Shacham) signatures to authenticate deposit data against given public keys.
• Progress Callbacks: Provides real-time feedback on processing progress, suitable for applications processing large datasets.
• Error Handling: Implements comprehensive error handling, with custom error types and callback functions for robust error management.
• Withdrawal Address Verification: The verification is carried out to confirm that the Withdrawal Address is included in the deposit data and that it matches any of the eigen pods addresses that we request directly for the restake vault.

Installation and Setup

npm i @stakewise/v3-deposit-data-parser

Usage example

To ensure optimal performance and responsiveness, StakeWise Deposit Data Parser is optimized for execution within a Web Worker. This allows your application to process data without blocking the main thread, keeping the UI smooth and responsive, even during intensive computations.

import { depositDataParser } from '@stakewise/v3-deposit-data-parser'

self.addEventListener('message', async (event) => {
  const { vaultAddress, network, file } = event.data

  try {
    const onProgress = (progress: Progress) => {
      postMessage({ progress })
    }

    const result = await depositDataParser({
      data,
      vaultAddress,
      network,
      onProgress,
    })

    postMessage({ result })
  }
  catch (error) {
    if (error instanceof ParserError) {
      const parserError: ParserError = { ...error }
      
      postMessage({ error: parserError })
    }
    else {
      postMessage({ error })
    }
  }
  finally {
    close()
  }
})

Deposit data parser Arguments:

Name	Type	Required	Description
network	Network	Yes	Network to which the deposit data belongs.
vaultAddress	string	Yes	The address of the vault for which the deposit data is being parsed.
data	DepositDataFile	Yes	Data that contains basic information about the file to be downloaded.
onProgress	Function	Optional	Callback function that is called with progress information as the file is being parsed. The function is expected to accept an object with total and value properties, where total is the total number of items to process, and value is the current number of items processed.

Parser Errors:

Type	Message
EMPTY_FILE	Deposit data file is empty
EIGEN_PODS_EMPTY	No Eigen pods in the Vault
INVALID_JSON_FORMAT	Deposit data file must be in JSON format
MERKLE_TREE_GENERATION_ERROR	Failed to generate the Merkle tree
INVALID_PUBLIC_KEY_FORMAT	Failed to parse deposit data public key
DUPLICATE_DEPOSIT_DATA	The deposit data file has already been uploaded.
INVALID_WITHDRAW_ADDRESS	The withdrawal addresses don’t match Eigen pods
MISSING_FIELDS	Failed to verify the deposit data public keys. Missing fields: {fields}
DUPLICATE_PUBLIC_KEYS	Failed to verify the deposit data public keys. All the entries must be unique.
INVALID_SIGNATURE	Failed to verify the deposit data signatures. Please make sure the file is generated for the {network} network.