eth_getFilterLogs

eth_getFilterLogs returns the complete set of logs that match an existing Avalanche C-Chain log filter, independent of how many times you have already polled it with eth_getFilterChanges. Where the polling call gives you only what is new, this call replays everything the filter's address and topic criteria cover across its block range. It is the natural way to prime an indexer that follows AVAX-paid contract activity — DeFi events from Aave, Trader Joe, or GMX — before switching to incremental polling. Send it to https://avalanche.therpc.io/YOUR_API_KEY (chain ID 43114, 0xa86a) with a filter ID created by eth_newFilter.

Use cases

• On application start, load the full historical log set for a C-Chain filter in one call before handing off to eth_getFilterChanges for live updates.
• Replay every event missed during downtime: after a service restart, call eth_getFilterLogs once to backfill, then resume incremental polling without gaps in your AVAX-ecosystem event stream.

Parameters

Response

Example request

1curl https://avalanche.therpc.io/YOUR_API_KEY \
2  -X POST \
3  -H "Content-Type: application/json" \
4  -d '{
5    "jsonrpc": "2.0",
6    "method": "eth_getFilterLogs",
7    "params": ["0x1"],
8    "id": 1
9  }'

Try it live in the Avalanche playground.

Errors & troubleshooting

Common pitfalls

• Unlike eth_getFilterChanges, this returns every matching log, not just the new ones — over a wide block range or a busy C-Chain contract it can return a large payload and may hit the 10,000-result cap.
• It only accepts log filters from eth_newFilter; passing a block filter or pending-transaction filter ID returns a filter not found-class error.
• Filters expire after about 5 minutes of inactivity, so call this promptly after creating the filter rather than holding the ID for later.

Supported networks

• Mainnet — Chain ID: 43114
• Fuji

See also

• eth_newFilter
• eth_getFilterChanges
• eth_uninstallFilter
• eth_getLogs

1curl https://avalanche.therpc.io/YOUR_API_KEY \
2  -X POST \
3  -H 'Content-Type: application/json' \
4  -d '{"jsonrpc":"2.0","id":1,"method":"eth_getFilterLogs","params":["0x1"]}'