# anchorPayload

Source: https://www.nianticspatial.com/docs/api/swift/NSDK.NSDKVps2Session.method-anchorPayload/

anchorPayload

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## Declaration

func anchorPayload(anchorId: NSDKVpsAnchorId) -> NSDKAsyncState<String, Never>?

#### Summary

Gets the payload data of a specified anchor.
The payload encodes the data needed to relocalize an anchor across devices or sessions.
It can be stored and used later with trackAnchor(payload:).
For anchors created via createAnchor(at:), subscribe to createdAnchorPayload
instead of polling this method -- the session handles polling automatically.
- Precondition: anchorId must be exactly 32 characters long.

#### Returns

- .inProgress(nil): The anchor is tracked but the payload is not yet available.
    - .success(payload): The base64-encoded payload is ready.
    - nil: No anchor with anchorId was found.

### Parameters

| Name | Type | Summary |
| --- | --- | --- |
| anchorId | NSDKVpsAnchorId | The unique identifier of the anchor. |

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