Filter handling | Avalanche

Avalanche filter JSON-RPC methods — create event and block filters, poll for changes, retrieve filter logs, and manage subscriptions on the C-Chain.

Filters are a mechanism for clients to receive notifications of changes to the Avalanche blockchain. The methods described in this section allow developers to retrieve the changes that happened since the filter was last polled or allow them to delete it.

Handling filters can be done by using the following methods:

eth_getFilterChanges

eth_uninstallFilter

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