---
title: "reporter(for:stableMetadata:volatileMetadata:)"
framework: statereporting
role: symbol
role_heading: Type Method
path: "statereporting/statereporter/reporter(for:stablemetadata:volatilemetadata:)"
---

# reporter(for:stableMetadata:volatileMetadata:)

Returns the reporter instance unique to the given domain and metadata types.

## Declaration

```swift
static func reporter(for domain: String, stableMetadata stableMetadataType: StableMetadata.Type = Never.self, volatileMetadata volatileMetadataType: VolatileMetadata.Type = Never.self) -> StateReporter<StableMetadata, VolatileMetadata>
```

## Parameters

- `domain`: The reverse DNS-style domain name.
- `stableMetadataType`: The type to use for stable metadata (defaults to Never).
- `volatileMetadataType`: The type to use for volatile metadata (defaults to Never).

## Mentioned in

Getting started with StateReporting

## Return Value

Return Value The reporter instance for the specified domain.

## Discussion

Discussion This method is the only way to obtain a StateReporter. Calling it multiple times with the same domain string always returns the same object. Calling it with a domain string that was previously registered under different generic type arguments is a fatal error.