hiero-ledger / hiero-ledger/hiero-consensus-node

Additional Validations to `StateValidator` tool

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Hedera State Operator
Dominant language
Java
Stars
407
Forks
226
Avg merge
3d 4h
Merged PRs (30d)
210

Description

We can add more validations in StateValidator tool like validating the links of tokenRelationships for the fungible and non-fungible tokens owned by an Account

Each Account has headTokenId and headNftId fields. When this token relation for the account and tokenId is looked up in TokenRelation virtual map , this will have the prev and next pointers pointing to the next token that that account is related to.

We need to validate the tokenRelations link is not broken for each account.

The same applies for NFTs, if we look up the Nft with the account headNftId the prev and next pointers should not be broken.

Each account tracks the number of NFTs owned with number_owned_nfts field .

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the StateValidator tool and the referenced account.proto, token_relation.proto, and nft.proto definitions. Trace account headTokenId and headNftId through the token relationship and NFT links, then validate that prev/next pointers are intact and that number_owned_nfts matches the owned NFTs; add or run the relevant validator tests if available.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
backend
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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