🚧
NOTE: Filter must be created by calling either eth_newFilter or eth_newBlockFilter.

Parameters

Object Name	Required	Type	Detail
`FILTER ID`	✅	String	A hex code of an integer that represents the filter id.

"params": [
    "unknown"
]

Result

An array of log objects, or an empty array if nothing has changed since last poll.

🚧
NOTE: eth_getFilterChanges only returns logs since the filter was created, regardless of the block passed in to create the filter. To get logs ranging from a specific block you should use eth_getLogs.

For filters created with eth_newBlockFilter the return are block hashes (DATA, 32 Bytes), e.g. ["0x123456789..."].
For filters created with eth_newFilter logs are objects with following params:

Result Fields

Key	Type	Detail
`address`	String	Address from which this log originated.
`blockHash`	String	Hash of the block where this log was in. `null` if either the returned block is pending or the log is pending.
`blockNumber`	String	A hex code of an integer that represents the block number where this log was in. `null` if either the returned block is pending or the log is pending.
`data`	String	Contains one or more 32 Bytes non-indexed arguments of the log.
`logIndex`	String	A hex code of an integer that represents the log index position in the block. `null` if the log is pending.
`removed`	Boolean	`true` if the log was removed, due to a chain reorganization. `false` if the log is valid.
`topics`	Array	Array of 0 to 4 32 Bytes `DATA` of indexed log arguments.
`transactionHash`	String	Hash of the transactions this log was created from. `null` if the log is pending.
`transactionIndex`	String	A hex code of an integer that represents the transactions index position log was created from. `null` if the log is pending.

Example

Request

curl <your-endpoint> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_getFilterChanges","params":["unknown"],"id":73}'

Return

unknown