CredentialsLoader
abstract class CredentialsLoader implements GetUniverseDomainInterface, FetchAuthTokenInterface, UpdateMetadataInterface (View source)
CredentialsLoader contains the behaviour used to locate and find default credentials files on the file system.
Traits
Provides shared methods for updating request metadata (request headers).
Trait containing helper methods required for enabling observability metrics in the library.
Constants
| TOKEN_CREDENTIAL_URI | 
                     
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| ENV_VAR | 
                     
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| QUOTA_PROJECT_ENV_VAR | 
                     
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| WELL_KNOWN_PATH | 
                     
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| NON_WINDOWS_WELL_KNOWN_PATH_BASE | 
                     
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| MTLS_WELL_KNOWN_PATH | 
                     
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| MTLS_CERT_ENV_VAR | 
                     
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Properties
| static protected string | $metricMetadataKey | from MetricsTrait | 
Methods
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Updates metadata with the authorization token.
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.
Fetch a quota project from the environment variable GOOGLE_CLOUD_QUOTA_PROJECT. Return null if GOOGLE_CLOUD_QUOTA_PROJECT is not specified.
Gets a callable which returns the default device certification.
Determines whether or not the default device certificate should be loaded.
Get the universe domain from the credential. Defaults to "googleapis.com" for all credential types which do not support universe domain.
Details
        
                static    protected        string
    getMetricsHeader(string $credType = '', string $authRequestType = '')
        
    
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                    protected        array
    applyServiceApiUsageMetrics(array $metadata)
        
    
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                    protected        array
    applyTokenEndpointMetrics(array $metadata, string $authRequestType)
        
    
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                static    protected        string
    getVersion()
        
    
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                    protected        string
    getCredType()
        
    
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                            callable
    getUpdateMetadataFunc()
        deprecated
    
    deprecated
export a callback function which updates runtime metadata.
        
                            array
    updateMetadata(array $metadata, string $authUri = null, callable|null $httpHandler = null)
        
    
    Updates metadata with the authorization token.
        
                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|ImpersonatedServiceAccountCredentials|ExternalAccountCredentials
    makeCredentials(string|string[] $scope, array $jsonKey, string|string[] $defaultScope = null)
        
    
    Create a new Credentials instance.
        
                static            Client
    makeHttpClient(FetchAuthTokenInterface $fetcher, array $httpClientOptions = [], callable|null $httpHandler = null, callable|null $tokenCallback = null)
        
    
    Create an authorized HTTP Client from an instance of FetchAuthTokenInterface.
        
                static            InsecureCredentials
    makeInsecureCredentials()
        
    
    Create a new instance of InsecureCredentials.
        
                static            string|null
    quotaProjectFromEnv()
        
    
    Fetch a quota project from the environment variable GOOGLE_CLOUD_QUOTA_PROJECT. Return null if GOOGLE_CLOUD_QUOTA_PROJECT is not specified.
        
                static            callable|null
    getDefaultClientCertSource()
        
    
    Gets a callable which returns the default device certification.
        
                static            bool
    shouldLoadClientCertSource()
        
    
    Determines whether or not the default device certificate should be loaded.
        
                            string
    getUniverseDomain()
        
    
    Get the universe domain from the credential. Defaults to "googleapis.com" for all credential types which do not support universe domain.