# Firebase App Check API . projects

## Instance Methods

Returns the apps Resource.

Returns the services Resource.

Close httplib2 connections.

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`](https://firebase.google.com/docs/projects/iam/permissions#app-check) permission to call this method. This permission is part of the [Firebase App Check Token Verifier role](https://firebase.google.com/docs/projects/iam/roles-predefined-product#app-check).

### Method Details

`close()`

    Close httplib2 connections.

`verifyAppCheckToken(project, body=None, x__xgafv=None)`

    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`](https://firebase.google.com/docs/projects/iam/permissions#app-check) permission to call this method. This permission is part of the [Firebase App Check Token Verifier role](https://firebase.google.com/docs/projects/iam/roles-predefined-product#app-check).

    Args:
      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](https://google.aip.dev/cloud/2510) standard. (required)
      body: object, The request body.
        The object takes the form of:

    { # Request message for the VerifyAppCheckToken method.
      "appCheckToken": "A String", # 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.
    }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Response message for the VerifyAppCheckToken method.
      "alreadyConsumed": True or False, # Whether this token was already consumed. If this is the first time this method has seen the given App Check token, this field will be omitted from the response. 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 containing this field, regardless whether the token was already consumed.
    }