ETH
POST
GET
Last updated on January 1, 1970
2 min read
Method eth_newFilter undefined ()
connect with JSON-RPC protocol
eth_newFilter
Creates a filter object based on the given filter options, to notify when the state changes (logs). To check if the state has changed, call eth_getFilterChanges.
Parameters
A filter object
with the fillowing keys and their values:
address
: optional A contract address or a list of addresses from which logs should originate.fromBlock
: optional, default is latest A hexadecimal block number, or the string latest, earliest or pending.toBlock
: optional, default is latest A hexadecimal block number, or the string latest, earliest or pending.topics
: optional An array of 32 bytes DATA topics. Topics are order-dependent.
Specifying topic filters
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 the first position, and anything after.[null, B]
: Anything in first position AND B in second position, and anything after.[A, B]
: A in the 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.
Request
curl --location --request POST 'https://eth.getblock.io/mainnet/'
--header 'x-api-key: YOUR-API-KEY'
--header 'Content-Type: application/json'
--data-raw '{"jsonrpc": "2.0",
"method": "eth_newFilter",
"params": [{"topics": ["0xb7407a6d74c6472bf99c4c9abe0860dc439469421c42c060639733b2309b05c7"]}],
"id": "getblock.io"}'
Response
{
"id": "getblock.io",
"jsonrpc": "2.0",
"result": "0x7087a9a20c62b41cd0290a6e6a9e0e33"
}
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Previous
{ "overview": "Overview", "guides": "Guides", "get-started": "Get Started", "rpc-service": "Nodes Methods", "getblock-explorer": "Explorer API", "getblock-tracker": "Tracker API", "nodes-endpoints": "Nodes Endpoints" }
Next
{ "overview": "Overview", "guides": "Guides", "get-started": "Get Started", "rpc-service": "Nodes Methods", "getblock-explorer": "Explorer API", "getblock-tracker": "Tracker API", "nodes-endpoints": "Nodes Endpoints" }