VerifyAppCheckTokenResponse interface

Interface representing a verified App Check token response.

Signature:

export interface VerifyAppCheckTokenResponse

Properties

Property Type Description
alreadyConsumed boolean Indicates weather this token was already consumed. If this is the first time AppCheck.verifyToken() method has seen this token, this field will contain the value false. The given token will then be marked as already_consumed for all future invocations of this AppCheck.verifyToken() method for this token.When this field is true, the caller is attempting to reuse a previously consumed token. You should take precautions against such a caller; for example, you can take actions such as rejecting the request or ask the caller to pass additional layers of security checks.
appId string The App ID corresponding to the App the App Check token belonged to.
token DecodedAppCheckToken The decoded Firebase App Check token.

VerifyAppCheckTokenResponse.alreadyConsumed

Indicates weather this token was already consumed. If this is the first time AppCheck.verifyToken() method has seen this token, this field will contain the value false. The given token will then be marked as already_consumed for all future invocations of this AppCheck.verifyToken() method for this token.

When this field is true, the caller is attempting to reuse a previously consumed token. You should take precautions against such a caller; for example, you can take actions such as rejecting the request or ask the caller to pass additional layers of security checks.

Signature:

alreadyConsumed?: boolean;

VerifyAppCheckTokenResponse.appId

The App ID corresponding to the App the App Check token belonged to.

Signature:

appId: string;

VerifyAppCheckTokenResponse.token

The decoded Firebase App Check token.

Signature:

token: DecodedAppCheckToken;