Get events issue for latest on 0.20.3 and above

[Larkooo]

We seem to observe some weird inconsistency on our indexers when using pathfinders with version 0.20.3 and above.

Not sure if it was happening before 0.20.3. Since there was quite a big change in that version regarding preconfirmed blocks.

What I'm aware of though is that when our indexer sometiems queries events for a block, from 2647215 and to 2647215 (which should return all events in that block), it instead returns 0 events. Even though we assert that the pathfinder has correctly synced up to that block by using a BlockHash tag for both the from and to params.

Our event filter looks like this. It should absolutely return all events up to the latest block which is 2647215 then we assert it using a blockhash tag

2025-10-03T18:58:43.179796Z DEBUG torii::indexer::fetcher: Starting event fetch for 1 contracts contracts_count=1 latest_block=2647215
2025-10-03T18:58:43.179846Z DEBUG torii::indexer::fetcher: Preparing to fetch events for contract contract="0x2d26295d6c541d64740e1ae56abc079b82b22c35ab83985ef8bd15dc0f9edfb" from_block=2647215 to_block=2647215
2025-10-03T18:58:43.179882Z DEBUG torii::indexer::fetcher: Retrieving events for 1 contracts batch_size=1
2025-10-03T18:58:43.284060Z DEBUG torii::indexer::fetcher: Retrieved events for 1 contracts duration=104.163221ms batch_size=1
2025-10-03T18:58:43.284137Z DEBUG torii::indexer::fetcher: Processing events page for contract contract="0x2d26295d6c541d64740e1ae56abc079b82b22c35ab83985ef8bd15dc0f9edfb" from_block=2647215 to_block=2647215
2025-10-03T18:58:43.284158Z DEBUG torii::indexer::fetcher: Received events page for contract contract="0x2d26295d6c541d64740e1ae56abc079b82b22c35ab83985ef8bd15dc0f9edfb" raw_events_count=0 has_continuation=false

Got 0 events here.

curl -X POST https://api.cartridge.gg/x/starknet/mainnet \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "starknet_getEvents",
    "params": [{
      "from_block": { "block_number": 2647215 },
      "to_block": { "block_number": 2647215 },
      "address": "0x2d26295d6c541d64740e1ae56abc079b82b22c35ab83985ef8bd15dc0f9edfb",
      "keys": [],
      "chunk_size": 1024
    }]
  }' | jq '.result.events | length'

This returns 16 events.

[sistemd]

As you say, the curl request works, so this doesn't seem like a pathfinder issue. If you can show us more of your Rust code we could maybe help you debug it, but it certainly does not seem like an issue on our end.

[Larkooo]

You can take a look at the code here: https://github.com/dojoengine/torii/blob/main/crates/indexer/fetcher/src/json_rpc.rs

What I meant is that the curl request was potentially fine because it was hours after seeing the discrepancy in indexing, it seems like that kind of stuff happens when being at the latest head and try to fetch new events relatively fast.

The logs I have linked reflect that Pathfinder itself has returned 0 events, even though the curl request proves there should have been 16 events.

[sistemd]

Are you still experiencing this with latest Pathfinder? Despite our attempts, we have not been able to reproduce this ☹️