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138 lines
5.5 KiB
138 lines
5.5 KiB
---
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title: clique Namespace
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description: Documentation for the JSON-RPC API "clique" namespace
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---
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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.
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## clique_getSnapshot {#clique-getsnapshot}
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Retrieves a snapshot of all clique state at a given block.
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| Client | Method invocation |
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| :------ | ----------------------------------------------------------- |
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| Console | `clique.getSnapshot(blockNumber)` |
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| RPC | `{"method": "clique_getSnapshot", "params": [blockNumber]}` |
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Example:
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```js
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> clique.getSnapshot(5463755)
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{
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hash: "0x018194fc50ca62d973e2f85cffef1e6811278ffd2040a4460537f8dbec3d5efc",
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number: 5463755,
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recents: {
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5463752: "0x42eb768f2244c8811c63729a21a3569731535f06",
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5463753: "0x6635f83421bf059cd8111f180f0727128685bae4",
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5463754: "0x7ffc57839b00206d1ad20c69a1981b489f772031",
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5463755: "0xb279182d99e65703f0076e4812653aab85fca0f0"
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},
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signers: {
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0x42eb768f2244c8811c63729a21a3569731535f06: {},
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0x6635f83421bf059cd8111f180f0727128685bae4: {},
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0x7ffc57839b00206d1ad20c69a1981b489f772031: {},
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0xb279182d99e65703f0076e4812653aab85fca0f0: {},
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0xd6ae8250b8348c94847280928c79fb3b63ca453e: {},
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0xda35dee8eddeaa556e4c26268463e26fb91ff74f: {},
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0xfc18cbc391de84dbd87db83b20935d3e89f5dd91: {}
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},
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tally: {},
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votes: []
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}
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```
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## clique_getSnapshotAtHash {#clique-getsnapshotathash}
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Retrieves the state snapshot at a given block.
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| Client | Method invocation |
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| :------ | --------------------------------------------------------------- |
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| Console | `clique.getSnapshotAtHash(blockHash)` |
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| RPC | `{"method": "clique_getSnapshotAtHash", "params": [blockHash]}` |
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## clique_getSigner {#clique-getsigner}
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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.
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| Client | Method invocation |
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| :------ | ---------------------------------------------------- |
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| Console | `clique.getSigner(blockNrOrHashOrRlp)` |
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| RPC | `{"method": "clique_getSigner", "params": [string]}` |
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## clique_getSigners {#clique-getsigners}
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Retrieves the list of authorized signers at the specified block number.
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| Client | Method invocation |
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| :------ | ---------------------------------------------------------- |
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| Console | `clique.getSigners(blockNumber)` |
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| RPC | `{"method": "clique_getSigners", "params": [blockNumber]}` |
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## clique_getSignersAtHash {#clique-getsignersathash}
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Retrieves the list of authorized signers at the specified block hash.
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| Client | Method invocation |
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| :------ | ----------------------------------------------------------- |
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| Console | `clique.getSignersAtHash(blockHash)` |
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| RPC | `{"method": "clique_getSignersAtHash", "params": [string]}` |
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## clique_proposals {#clique-proposals}
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Returns the current proposals the node is voting on.
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| Client | Method invocation |
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| :------ | ---------------------------------------------- |
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| Console | `clique.proposals()` |
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| RPC | `{"method": "clique_proposals", "params": []}` |
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## clique_propose {#clique-propose}
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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.
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| Client | Method invocation |
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| :------ | --------------------------------------------------------- |
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| Console | `clique.propose(address, auth)` |
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| RPC | `{"method": "clique_propose", "params": [address, auth]}` |
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## clique_discard {#clique-discard}
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This method drops a currently running proposal. The signer will not cast further votes (either for or against) the address.
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| Client | Method invocation |
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| :------ | --------------------------------------------------- |
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| Console | `clique.discard(address)` |
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| RPC | `{"method": "clique_discard", "params": [address]}` |
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## clique_status {#clique-status}
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This is a debugging method which returns statistics about signer activity for the last 64 blocks. The returned object contains the following fields:
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- `inturnPercent`: percentage of blocks signed in-turn
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- `sealerActivity`: object containing signer addresses and the number
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of blocks signed by them
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- `numBlocks`: number of blocks analyzed
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| Client | Method invocation |
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| :------ | ------------------------------------------- |
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| Console | `clique.status()` |
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| RPC | `{"method": "clique_status", "params": []}` |
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Example:
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```js
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> clique.status()
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{
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inturnPercent: 100,
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numBlocks: 64,
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sealerActivity: {
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0x42eb768f2244c8811c63729a21a3569731535f06: 9,
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0x6635f83421bf059cd8111f180f0727128685bae4: 9,
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0x7ffc57839b00206d1ad20c69a1981b489f772031: 9,
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0xb279182d99e65703f0076e4812653aab85fca0f0: 10,
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0xd6ae8250b8348c94847280928c79fb3b63ca453e: 9,
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0xda35dee8eddeaa556e4c26268463e26fb91ff74f: 9,
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0xfc18cbc391de84dbd87db83b20935d3e89f5dd91: 9
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}
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}
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```
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