# Avalanche (C-Chain) filter methods

> Avalanche (C-Chain) filter methods

# Avalanche (C-Chain) filter methods

Infura supports the following filter methods over both HTTP and WebSocket. In both cases, the filter IDs
can be shared by any connection using the same API key.

- [`eth_getFilterChanges`](eth_getfilterchanges.mdx)
- [`eth_getFilterLogs`](eth_getfilterlogs.mdx)
- [`eth_newBlockFilter`](eth_newblockfilter.mdx)
- [`eth_newFilter`](eth_newfilter.mdx)
- [`eth_uninstallFilter`](eth_uninstallfilter.mdx)

Filters that are not polled using [`eth_getFilterChanges`](eth_getfilterchanges.mdx) automatically
expires after fifteen minutes of inactivity.