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      • bor_getAuthor
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      • eth_getBalance
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      • eth_getBlockTransactionCountByHash
      • eth_getBlockTransactionCountByNumber
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      • eth_accounts
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      • eth_getTransactionByHash
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      • eth_maxPriorityFeePerGas
      • eth_newBlockFilter
      • eth_newFilter
      • eth_newPendingTransactionFilter
      • eth_protocolVersion
      • eth_sendRawTransaction
      • eth_subscribe
      • eth_syncing
      • eth_uninstallFilter
      • eth_unsubscribe
      • net_listening
      • net_peerCount
      • net_version
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    • Metis
      • debug_traceBlockByHash
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      • eth_accounts
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      • eth_getCode
      • eth_getFilterChanges
      • eth_getFilterLogs
      • eth_getLogs
      • eth_getProof
      • eth_getStorageAt
      • eth_getTransactionByBlockHashAndIndex
      • eth_getTransactionByBlockNumberAndIndex
      • eth_getTransactionByHash
      • eth_getTransactionCount
      • eth_getTransactionReceipt
      • eth_newBlockFilter
      • eth_newFilter
      • eth_newPendingTransactionFilter
      • eth_protocolVersion
      • eth_sendRawTransaction
      • eth_subscribe
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      • eth_unsubscribe
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  1. Supported API Methods
  2. Kava

eth_newFilter

Creates a filter object, based on filter options, to notify when the state changes (logs). To check if the state has changed, call eth_getFilterChanges or eth_getFilterLogs.

Parameters

Object - filter options:

  1. fromBlock: Quantity or tag (optional, default is "latest" if not specified)

    - choose 1 of the following options:

    • A hexadecimal block number.

    • "earliest" - the earliest/genesis block.

    • "latest" - the latest mined block.

    • "finalized" - the latest finalized block.

    • "pending" - the pending state/transactions.

  2. toBlock: Quantity or tag (optional, default is "latest" if not specified)

    - choose 1 of the following options:

    • A hexadecimal block number.

    • "latest" - the latest mined block.

    • "finalized" - the latest finalized block.

    • "pending" - the pending state/transactions.

  3. address: (optional) Contract address or a list of addresses from which logs should originate.

  4. topics: (optional) Array of Data topics. Topics are order-dependent. A transaction with a log with topics [A, B] will be matched by the following topic filters:

    • [] "anything"

    • [A] "A in first position (and anything after)"

    • [null, B] "anything in first position AND B in second position (and anything after)"

    • [A, B] "A in first position AND B in second position (and anything after)"

    • [[A, B], [A, B]] "(A OR B) in first position AND (A OR B) in second position (and anything after)"

Sample Request

curl https://lb.nodies.app/v1/<INSERT API> -X POST -H "Content-Type: application/json" -d '{
  "jsonrpc": "2.0",
  "method": "eth_newFilter",
  "params": [
    {
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
      ]
    }
  ],
  "id": 1
}'

Sample Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0xb807ac9883a863c18933de520fcfb5e8"
}
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Last updated 1 year ago

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