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eth_newFilter

Creates a filter object, based on filter options. To get all matching logs for specific filter, call eth_getFilterLogs. To check if the state has changed, call eth_getFilterChanges.

Parameters:

Object - The filter options:
  • fromBlock: QUANTITY|TAG - (optional, default: "latest") Integer block number, or "latest" for the last mined block
  • toBlock: QUANTITY|TAG - (optional, default: "latest") Integer block number, or "latest" for the last mined block
  • address: DATA|Array, 20 Bytes - (optional) Contract address or a list of addresses from which logs should originate.
  • topics: Array of DATA - (optional) Array of 32 Bytes DATA topics. Topics are order-dependent. Each topic can also be an array of DATA with “or” options.

Returns:

QUANTITY - A filter id.

Example:

// Request
curl https://arbitrum.blockpi.network/v1/rpc/your-rpc-key -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_newFilter","params":[{"topics":["0x1234123412341234123412341111111111111111111111111111111111111111"]}],"id":1}'
​
// Result
{
"jsonrpc": "2.0",
"id": 1,
"result": "0x53cafeeb5079da74b849cfa3d62644b1"
}