Verifies the given App Check token and returns token usage signals that callers may act upon. This method currently only supports App Check tokens exchanged from the following attestation providers: * Play Integrity API * App Attest * DeviceCheck (DCDevice tokens) * reCAPTCHA Enterprise * reCAPTCHA v3 * Custom providers App Check tokens exchanged from debug secrets are also supported. Calling this method on an otherwise valid App Check token with an unsupported provider will cause an HTTP 400 error to be returned. Returns whether this token was already consumed before this call. If this is the first time this method has seen the given App Check token, the field already_consumed in the response will be absent. The given token will then be marked as already_consumed (set to true) for all future invocations of this method for that token. Note that if the given App Check token is invalid, an HTTP 403 error is returned instead of a response object, regardless whether the token was already consumed. Currently, when evaluating whether an App Check token was already consumed, only calls to this exact method are counted. Use of the App Check token elsewhere will not mark the token as being already consumed. The caller must have the firebaseappcheck.appCheckTokens.verify permission to call this method. This permission is part of the Firebase App Check Token Verifier role.

Scopes

You will need authorization for at least one of the following scopes to make a valid call:

  • https://www.googleapis.com/auth/cloud-platform
  • https://www.googleapis.com/auth/firebase

If unset, the scope for this method defaults to https://www.googleapis.com/auth/cloud-platform. You can set the scope for this method like this: firebaseappcheck1-beta --scope <scope> projects verify-app-check-token ...

Required Scalar Argument

  • <project> (string)
    • Required. The relative resource name of the project for which the token was minted, in the format: projects/{project_number} If necessary, the project_number element can be replaced with the project ID of the Firebase project. Learn more about using project identifiers in Google's AIP 2510 standard.

Required Request Value

The request value is a data-structure with various fields. Each field may be a simple scalar or another data-structure. In the latter case it is advised to set the field-cursor to the data-structure's field to specify values more concisely.

For example, a structure like this:

GoogleFirebaseAppcheckV1betaVerifyAppCheckTokenRequest:
  app-check-token: string

can be set completely with the following arguments which are assumed to be executed in the given order. Note how the cursor position is adjusted to the respective structures, allowing simple field names to be used most of the time.

  • -r . app-check-token=sed
    • Required. The App Check token to verify. App Check tokens exchanged from the SafetyNet provider are not supported; an HTTP 400 error will be returned.

About Cursors

The cursor position is key to comfortably set complex nested structures. The following rules apply:

  • The cursor position is always set relative to the current one, unless the field name starts with the . character. Fields can be nested such as in -r f.s.o .
  • The cursor position is set relative to the top-level structure if it starts with ., e.g. -r .s.s
  • You can also set nested fields without setting the cursor explicitly. For example, to set a value relative to the current cursor position, you would specify -r struct.sub_struct=bar.
  • You can move the cursor one level up by using ... Each additional . moves it up one additional level. E.g. ... would go three levels up.

Optional Output Flags

The method's return value a JSON encoded structure, which will be written to standard output by default.

  • -o out
    • out specifies the destination to which to write the server's result to. It will be a JSON-encoded structure. The destination may be - to indicate standard output, or a filepath that is to contain the received bytes. If unset, it defaults to standard output.

Optional General Properties

The following properties can configure any call, and are not specific to this method.

  • -p $-xgafv=string

    • V1 error format.

  • -p access-token=string

    • OAuth access token.

  • -p alt=string

    • Data format for response.

  • -p callback=string

    • JSONP

  • -p fields=string

    • Selector specifying which fields to include in a partial response.

  • -p key=string

    • API key. Your API key identifies your project and provides you with API access, quota, and reports. Required unless you provide an OAuth 2.0 token.

  • -p oauth-token=string

    • OAuth 2.0 token for the current user.

  • -p pretty-print=boolean

    • Returns response with indentations and line breaks.

  • -p quota-user=string

    • Available to use for quota purposes for server-side applications. Can be any arbitrary string assigned to a user, but should not exceed 40 characters.

  • -p upload-type=string

    • Legacy upload protocol for media (e.g. "media", "multipart").

  • -p upload-protocol=string

    • Upload protocol for media (e.g. "raw", "multipart").