fetchAmountDelegatedForSigner

Reads the total micro-STX delegated to a signer-manager for one reward cycle, from protocol bonds and STX-only staking. Wraps the pox-5 read-only get-amount-delegated-for-signer, which reads the signer-delegated-per-cycle map.

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Usage

import { fetchAmountDelegatedForSigner, fetchPoxInfo, fetchSignerSetFirstItem } from '@stacks/bitcoin-staking';

const { rewardCycleId: rewardCycle } = await fetchPoxInfo({ network: 'mainnet' });
// Any signer-manager in this cycle's signer set
const signerManager = await fetchSignerSetFirstItem({ rewardCycle, network: 'mainnet' });

if (signerManager) {
  const ustx = await fetchAmountDelegatedForSigner({ signerManager, rewardCycle, network: 'mainnet' });
}

Notes

• The contract comment says this value should determine signer weight when approving blocks (signer-delegated-per-cycle).

• A signer-manager joins the cycle's signer set when this reaches 50,000 STX (SIGNER_SET_MIN_USTX, 50,000,000,000 micro-STX) and leaves it when it falls below (SIGNER_SET_MIN_USTX, add-staker-to-signer-for-cycle, remove-staker-from-signer-for-cycle). fetchSignerSetContainsForCycle reads the membership directly.

• Returns 0n when the contract has no entry for the inputs.

• A non-2xx response throws an Error whose message starts with Error calling read-only function. and includes the status code and URL. If the node reports that the call failed, the Error message is the node's cause.

Reference Link

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Signature

function fetchAmountDelegatedForSigner(
  opts: { signerManager: string; rewardCycle: number } & NetworkClientParam
): Promise<bigint>;

opts is a NetworkClientParam plus signerManager and rewardCycle.

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Returns

Promise<bigint>

Resolves to an amount in micro-STX.

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Parameters

opts.signerManager (required)

• Type: string

Contract principal of the signer-manager, in the form <address>.<contract-name>. pox-5 keys signer state by this principal.

opts.rewardCycle (required)

• Type: number

Reward cycle to read.

opts.network (optional)

• Type: StacksNetworkName | StacksNetwork

The network to query: a name such as 'mainnet' or 'testnet', or a StacksNetwork object. Defaults to 'mainnet'.

opts.client (optional)

• Type: { baseUrl?: string; fetch?: FetchFn }

Overrides the API base URL or the fetch function, for example to query your own node. Fields you set replace the network's defaults.