Verify an Indexer Can Recover from a Chain Reorganization
An indexer can reach the latest block and still serve data from an abandoned chain. Its checkpoint advances, its health endpoint stays green and its token balance includes a transfer that no longer exists in canonical history. Recovery needs a stronger acceptance test: after replacing a branch, every indexed result must match an independent rebuild of the selected canonical history. This tutorial…
We haven't written up this one. Dev.to has the full story — the link below goes straight to it.