POST
/
788f110831fe13808302bd79796d55e8
getblockfilter
curl --request POST \
  --url https://nd-202-842-353.p2pify.com/788f110831fe13808302bd79796d55e8 \
  --header 'Content-Type: application/json' \
  --data '{
  "jsonrpc": "1.0",
  "method": "getblockfilter",
  "params": [
    "000000000000000000100c3c4b0b07a64612385408f6c7d97c422a5a0c1d859d",
    "basic"
  ],
  "id": 1
}'
{
  "result": {},
  "error": {},
  "id": 123
}
The getblockfilter method retrieves a BIP 157 content filter for a particular block.
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Parameters

  • blockhash (required) — the hash of the block
  • filtertype (required) — the type of filter to retrieve, currently only basic is supported

​
Response

  • result — an object containing the block filter with the following fields:
    • filter — the hex-encoded filter data
    • header — the hex-encoded filter header
  • error — an object containing an error message if an error occurred, otherwise null
  • id — an integer representing the ID of the request, used to match requests with responses

​
Use case

Block filters are used to efficiently determine if a block may contain transactions relevant to a particular wallet or light client without downloading the entire block. The getblockfilter method allows retrieving these filters for a specific block. For example, a light wallet might use getblockfilter to check if it needs to download a particular block to search for wallet transactions, reducing bandwidth and processing requirements compared to downloading every block.

Body

application/json

Response

200 - application/json

The BIP 157 content filter for the block

The response is of type object.