GCECredentials
class GCECredentials extends CredentialsLoader (View source)
GCECredentials supports authorization on Google Compute Engine.
It can be used to authorize requests using the AuthTokenMiddleware, but will only succeed if being run on GCE:
use Google\Auth\Credentials\GCECredentials; use Google\Auth\Middleware\AuthTokenMiddleware; use GuzzleHttp\Client; use GuzzleHttp\HandlerStack;
$gce = new GCECredentials(); $middleware = new AuthTokenMiddleware($gce); $stack = HandlerStack::create(); $stack->push($middleware);
$client = new Client([ 'handler' => $stack, 'base_uri' => 'https://www.googleapis.com/taskqueue/v1beta2/projects/', 'auth' => 'google_auth' ]);
$res = $client->get('myproject/taskqueues/myqueue');
Constants
| TOKEN_CREDENTIAL_URI | 
                     
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| ENV_VAR | 
                     
  | 
            
| WELL_KNOWN_PATH | 
                     
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| NON_WINDOWS_WELL_KNOWN_PATH_BASE | 
                     
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| AUTH_METADATA_KEY | 
                     
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| cacheKey | 
                     
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| METADATA_IP | 
                     The metadata IP address on appengine instances. The IP is used instead of the domain 'metadata' to avoid slow responses when not on Compute Engine.  | 
            
| TOKEN_URI_PATH | 
                     The metadata path of the default token.  | 
            
| FLAVOR_HEADER | 
                     The header whose presence indicates GCE presence.  | 
            
Properties
| protected | $lastReceivedToken | Result of fetchAuthToken.  | 
                
Methods
Load a JSON key from the path specified in the environment.
Create a new Credentials instance.
export a callback function which updates runtime metadata.
Updates metadata with the authorization token.
The full uri for accessing the default token.
Determines if this an App Engine Flexible instance, by accessing the GAE_VM environment variable.
Determines if this a GCE instance, by accessing the expected metadata host.
Implements FetchAuthTokenInterface#fetchAuthToken.
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Details
        
                static            array
    fromEnv()
        
    
    Load a JSON key from the path specified in the environment.
Load a JSON key from the path specified in the environment variable GOOGLE_APPLICATION_CREDENTIALS. Return null if GOOGLE_APPLICATION_CREDENTIALS is not specified.
        
                static            array
    fromWellKnownFile()
        
    
    Load a JSON key from a well known path.
The well known path is OS dependent:
- windows: %APPDATA%/gcloud/application_default_credentials.json
 - others: $HOME/.config/gcloud/application_default_credentials.json
 
If the file does not exists, this returns null.
        
                static            ServiceAccountCredentials|UserRefreshCredentials
    makeCredentials($scope, array $jsonKey)
        
    
    Create a new Credentials instance.
        
                            array
    getUpdateMetadataFunc()
        
    
    export a callback function which updates runtime metadata.
        
                            array
    updateMetadata(array $metadata, string $authUri = null, callable $httpHandler = null)
        
    
    Updates metadata with the authorization token.
        
                static            string
    getTokenUri()
        
    
    The full uri for accessing the default token.
        
                static            true
    onAppEngineFlexible()
        
    
    Determines if this an App Engine Flexible instance, by accessing the GAE_VM environment variable.
        
                static            true
    onGce(callable $httpHandler = null)
        
    
    Determines if this a GCE instance, by accessing the expected metadata host.
If $httpHandler is not specified a the default HttpHandler is used.
        
                            array
    fetchAuthToken(callable $httpHandler = null)
        
    
    Implements FetchAuthTokenInterface#fetchAuthToken.
Fetches the auth tokens from the GCE metadata host if it is available. If $httpHandler is not specified a the default HttpHandler is used.
        
                            string
    getCacheKey()
        
    
    No description
        
                            null|array
    getLastReceivedToken()
        
    
    No description