clique Namespace

Last edited on August 16, 2023

The clique API provides access to the state of the clique consensus engine. This API can be used to manage signer votes and to check the health of a private network.

clique_getSnapshot

Retrieves a snapshot of all clique state at a given block.

Client	Method invocation
Console	clique.getSnapshot(blockNumber)
RPC	{"method": "clique_getSnapshot", "params": [blockNumber]}

Example:

> clique.getSnapshot(5463755)
{
  hash: "0x018194fc50ca62d973e2f85cffef1e6811278ffd2040a4460537f8dbec3d5efc",
  number: 5463755,
  recents: {
    5463752: "0x42eb768f2244c8811c63729a21a3569731535f06",
    5463753: "0x6635f83421bf059cd8111f180f0727128685bae4",
    5463754: "0x7ffc57839b00206d1ad20c69a1981b489f772031",
    5463755: "0xb279182d99e65703f0076e4812653aab85fca0f0"
  },
  signers: {
    0x42eb768f2244c8811c63729a21a3569731535f06: {},
    0x6635f83421bf059cd8111f180f0727128685bae4: {},
    0x7ffc57839b00206d1ad20c69a1981b489f772031: {},
    0xb279182d99e65703f0076e4812653aab85fca0f0: {},
    0xd6ae8250b8348c94847280928c79fb3b63ca453e: {},
    0xda35dee8eddeaa556e4c26268463e26fb91ff74f: {},
    0xfc18cbc391de84dbd87db83b20935d3e89f5dd91: {}
  },
  tally: {},
  votes: []
}

clique_getSnapshotAtHash

Retrieves the state snapshot at a given block.

Client	Method invocation
Console	clique.getSnapshotAtHash(blockHash)
RPC	{"method": "clique_getSnapshotAtHash", "params": [blockHash]}

clique_getSigner

Returns the signer for a specific clique block. Can be called with either a blocknumber, blockhash or an rlp encoded blob. The RLP encoded blob can either be a block or a header.

Client	Method invocation
Console	clique.getSigner(blockNrOrHashOrRlp)
RPC	{"method": "clique_getSigner", "params": [string]}

clique_getSigners

Retrieves the list of authorized signers at the specified block number.

Client	Method invocation
Console	clique.getSigners(blockNumber)
RPC	{"method": "clique_getSigners", "params": [blockNumber]}

clique_getSignersAtHash

Retrieves the list of authorized signers at the specified block hash.

Client	Method invocation
Console	clique.getSignersAtHash(blockHash)
RPC	{"method": "clique_getSignersAtHash", "params": [string]}

clique_proposals

Returns the current proposals the node is voting on.

Client	Method invocation
Console	clique.proposals()
RPC	{"method": "clique_proposals", "params": []}

clique_propose

Adds a new authorization proposal that the signer will attempt to push through. If the auth parameter is true, the local signer votes for the given address to be included in the set of authorized signers. With auth set to false, the vote is against the address.

Client	Method invocation
Console	clique.propose(address, auth)
RPC	{"method": "clique_propose", "params": [address, auth]}

clique_discard

This method drops a currently running proposal. The signer will not cast further votes (either for or against) the address.

Client	Method invocation
Console	clique.discard(address)
RPC	{"method": "clique_discard", "params": [address]}

clique_status

This is a debugging method which returns statistics about signer activity for the last 64 blocks. The returned object contains the following fields:

inturnPercent: percentage of blocks signed in-turn
sealerActivity: object containing signer addresses and the number of blocks signed by them
numBlocks: number of blocks analyzed

Client	Method invocation
Console	clique.status()
RPC	{"method": "clique_status", "params": []}

Example:

> clique.status()
{
  inturnPercent: 100,
  numBlocks: 64,
  sealerActivity: {
    0x42eb768f2244c8811c63729a21a3569731535f06: 9,
    0x6635f83421bf059cd8111f180f0727128685bae4: 9,
    0x7ffc57839b00206d1ad20c69a1981b489f772031: 9,
    0xb279182d99e65703f0076e4812653aab85fca0f0: 10,
    0xd6ae8250b8348c94847280928c79fb3b63ca453e: 9,
    0xda35dee8eddeaa556e4c26268463e26fb91ff74f: 9,
    0xfc18cbc391de84dbd87db83b20935d3e89f5dd91: 9
  }
}