> For the complete documentation index, see [llms.txt](https://docs.stacks.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stacks.co/reference/stacks.js/stacks-bitcoin-staking/fetch/fetchsignerrewardspertokenforcycle.md).

# fetchSignerRewardsPerTokenForCycle

Reads the rewards-per-token value pox-5 recorded for a signer-manager's share of one tranche, which its stakers' rewards accrue against. Wraps the pox-5 read-only `get-signer-rewards-per-token-for-cycle`, which reads the `signer-rewards-per-token-for-cycle` map.

***

### Usage

```ts
import { fetchSignerRewardsPerTokenForCycle, 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) {
  // STX-only staking tranche. Add bondIndex to read a protocol bond.
  const value = await fetchSignerRewardsPerTokenForCycle({ signerManager, rewardCycle, network: 'mainnet' });
}
```

#### Notes

* `settle-rewards` copies the tranche's current [fetchRewardsPerTokenForCycle](/reference/stacks.js/stacks-bitcoin-staking/fetch/fetchrewardspertokenforcycle.md) value into it, and only when the signer-manager's shares are above 0 ([settle-rewards](https://github.com/stacks-network/stacks-core/blob/10474cdec9f9c0bdf05841b58cffc89cdad87a9b/stackslib/src/chainstate/stacks/boot/pox-5.clar#L2559-L2568)). Between settlements it lags the contract-wide accumulator.
* `get-earned-staker-rewards` uses this value as the current rewards-per-token for every staker of the signer-manager ([get-earned-staker-rewards](https://github.com/stacks-network/stacks-core/blob/10474cdec9f9c0bdf05841b58cffc89cdad87a9b/stackslib/src/chainstate/stacks/boot/pox-5.clar#L2358-L2373)). A staker's [fetchEarnedStakerRewards](/reference/stacks.js/stacks-bitcoin-staking/fetch/fetchearnedstakerrewards.md) result grows only when the signer-manager's tranche is settled, for example by `claim-rewards`.
* The value is scaled by 10^18 ([`PRECISION`](https://github.com/stacks-network/stacks-core/blob/10474cdec9f9c0bdf05841b58cffc89cdad87a9b/stackslib/src/chainstate/stacks/boot/pox-5.clar#L103)): sats of sBTC per share, times 10^18. A share is one sat in the protocol bond tranche and one micro-STX in the STX-only staking tranche.
* 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**](https://github.com/stx-labs/stacks.js/blob/6101c99efe5a9616ce7e16cef68e28fd10676e7e/packages/bitcoin-staking/src/fetch.ts#L1010-L1039)

***

### Signature

```ts
function fetchSignerRewardsPerTokenForCycle(
  opts: {
    signerManager: string;
    rewardCycle: number;
    bondIndex?: number;
  } & NetworkClientParam
): Promise<bigint>;
```

`opts` is a [NetworkClientParam](/reference/stacks.js/stacks-network/network/networkclientparam.md) plus `signerManager`, `rewardCycle` and `bondIndex`.

***

### Returns

`Promise<bigint>`

Resolves to the recorded rewards-per-token value, scaled by 10^18.

***

### 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.bondIndex (optional)

* **Type**: `number`

Protocol bond index. Set it to read that bond in the protocol bond tranche. Omit it to read the STX-only staking tranche.

#### opts.network (optional)

* **Type**: `StacksNetworkName | StacksNetwork`

The network to query: a name such as `'mainnet'` or `'testnet'`, or a [StacksNetwork](/reference/stacks.js/stacks-network/network/stacksnetwork.md) 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.


---

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