---
title: "certificateChainRequest(with:completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusteroperationalcredentials/certificatechainrequest(with:completion:)"
---

# certificateChainRequest(with:completion:)

## Declaration

```swift
func certificateChainRequest(with params: MTROperationalCredentialsClusterCertificateChainRequestParams, completion: @escaping @Sendable (MTROperationalCredentialsClusterCertificateChainResponseParams?, (any Error)?) -> Void)
```

```swift
func certificateChainRequest(with params: MTROperationalCredentialsClusterCertificateChainRequestParams) async throws -> MTROperationalCredentialsClusterCertificateChainResponseParams
```