CredentialsLoader
abstract class CredentialsLoader implements FetchAuthTokenInterface, UpdateMetadataInterface (View source)
CredentialsLoader contains the behaviour used to locate and find default credentials files on the file system.
Constants
| TOKEN_CREDENTIAL_URI | 
                     
  | 
            
| ENV_VAR | 
                     
  | 
            
| WELL_KNOWN_PATH | 
                     
  | 
            
| NON_WINDOWS_WELL_KNOWN_PATH_BASE | 
                     
  | 
            
Methods
Load a JSON key from the path specified in the environment.
Load a JSON key from a well known path.
Create a new Credentials instance.
Create an authorized HTTP Client from an instance of FetchAuthTokenInterface.
Create a new instance of InsecureCredentials.
Updates metadata with the authorization token.
Details
        
                static            array|null
    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|null
    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 exist, this returns null.
        
                static            ServiceAccountCredentials|UserRefreshCredentials
    makeCredentials(string|array $scope, array $jsonKey, string|array $defaultScope = null)
        
    
    Create a new Credentials instance.
        
                static            Client
    makeHttpClient(FetchAuthTokenInterface $fetcher, array $httpClientOptions = [], callable $httpHandler = null, callable $tokenCallback = null)
        
    
    Create an authorized HTTP Client from an instance of FetchAuthTokenInterface.
        
                static            InsecureCredentials
    makeInsecureCredentials()
        
    
    Create a new instance of InsecureCredentials.
        
                            array
    getUpdateMetadataFunc()
        deprecated
    
    deprecated
export a callback function which updates runtime metadata.
        
                            array
    updateMetadata(array $metadata, string $authUri = null, callable $httpHandler = null)
        
    
    Updates metadata with the authorization token.