[Bug] (FirebaseAI) - "x-ios-bundle-identifier" header is not added in the GenerativeAIRequest urlRequest

[psbpd21]

Description

HI i'm trying to enable API Key application restriction but with no avail since the GenerativeAIService urlRequest lack the "x-ios-bundle-identifier". After i added the header in this function: private func urlRequest<T: GenerativeAIRequest>(request: T) async throws -> URLRequest {}, the application restriction worked.

Reproducing the issue

1. Edit the API Key that was used for Firebase AI Logic API and Generative Language API in google cloud console.
2. Enable application restrictions with your app bundle id.
3. Send a generateContent request.

Firebase SDK Version

12.3

Xcode Version

26.0.1

Installation Method

CocoaPods

Firebase Product(s)

AI Logic

Targeted Platforms

iOS

Relevant Log Output

GenerateContentError
  ▿ internalError : 1 element
    ▿ underlying : BackendError
      - httpResponseCode : 403
      - message : "Requests from this iOS client application <empty> are blocked."
      - status : FirebaseAI.RPCStatus.permissionDenied
      ▿ details : 2 elements
        ▿ 0 : ErrorDetails
          - type : "type.googleapis.com/google.rpc.ErrorInfo"
          ▿ reason : Optional<String>
            - some : "API_KEY_IOS_APP_BLOCKED"
          ▿ domain : Optional<String>
            - some : "googleapis.com"
          ▿ metadata : Optional<Dictionary<String, String>>
            ▿ some : 3 elements
              ▿ 0 : 2 elements
                - key : "service"
                - value : "firebasevertexai.googleapis.com"
              ▿ 1 : 2 elements
                - key : "iosBundleId"
                - value : "<empty>"
              ▿ 2 : 2 elements
                - key : "consumer"
                - value : redacted
        ▿ 1 : ErrorDetails
          - type : "type.googleapis.com/google.rpc.LocalizedMessage"
          - reason : nil
          - domain : nil
          - metadata : nil

If using Swift Package Manager, the project's Package.resolved

If using CocoaPods, the project's Podfile.lock

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[psbpd21]

@paulb777 @andrewheard Let me know if you guys need me to open a PR ya cause it's quite a simple fix

[paulb777]

@psbpd21 Thanks for the issue and sorry about the delayed response. We recommend that Firebase AI Logic apps use Firebase App Check. However, Firebase AI Logic should be consistent with the Firebase products and include x-ios-bundle-identifier in its headers.

So yes, please send the PR.

[paulb777]

@psbpd21 Nevermind on the PR. We'll do the change along with the appropriate tests, with a planned launch of 12.7.0

[psbpd21]

@paulb777 Alrighty duly noted. Thanks for the heads up