internal

Documentation

Overview

Package internal supports the options and transport packages.

Package internal supports the options and transport packages.

Index

• Constants
• func Creds(ctx context.Context, ds *DialSettings) (*google.Credentials, error)
• func GetGRPCTransportConfigAndEndpoint(settings *DialSettings) (credentials.TransportCredentials, string, error)
• func GetHTTPTransportConfigAndEndpoint(settings *DialSettings) (cert.Source, func(context.Context, string, string) (net.Conn, error), string, ...)
• func GetQuotaProject(creds *google.Credentials, clientOpt string) string
• func GetS2AAddress() string
• type ConnPool
• type DialSettings
  • func (ds *DialSettings) GetAudience() string
  • func (ds *DialSettings) GetScopes() []string
  • func (ds *DialSettings) HasCustomAudience() bool
  • func (ds *DialSettings) Validate() error

Constants

const Version = "0.118.0"

Version is the current tagged release of the library.

Functions

func Creds

func Creds(ctx context.Context, ds *DialSettings) (*google.Credentials, error)

Creds returns credential information obtained from DialSettings, or if none, then it returns default credential information.

func GetGRPCTransportConfigAndEndpoint

func GetGRPCTransportConfigAndEndpoint(settings *DialSettings) (credentials.TransportCredentials, string, error)

GetGRPCTransportConfigAndEndpoint returns an instance of credentials.TransportCredentials, and the corresponding endpoint to use for GRPC client.

func GetHTTPTransportConfigAndEndpoint

func GetHTTPTransportConfigAndEndpoint(settings *DialSettings) (cert.Source, func(context.Context, string, string) (net.Conn, error), string, error)

GetHTTPTransportConfigAndEndpoint returns a client certificate source, a function for dialing MTLS with S2A, and the endpoint to use for HTTP client.

func GetQuotaProject

func GetQuotaProject(creds *google.Credentials, clientOpt string) string

GetQuotaProject retrieves quota project with precedence being: client option, environment variable, creds file.

func GetS2AAddress

func GetS2AAddress() string

GetS2AAddress returns the S2A address to be reached via plaintext connection.

Types

type ConnPool

type ConnPool interface {
	// Conn returns a ClientConn from the pool.
	//
	// Conns aren't returned to the pool.
	Conn() *grpc.ClientConn

	// Num returns the number of connections in the pool.
	//
	// It will always return the same value.
	Num() int

	// Close closes every ClientConn in the pool.
	//
	// The error returned by Close may be a single error or multiple errors.
	Close() error

	// ConnPool implements grpc.ClientConnInterface to enable it to be used directly with generated proto stubs.
	grpc.ClientConnInterface
}

ConnPool is a pool of grpc.ClientConns.

type DialSettings

type DialSettings struct {
	Endpoint                      string
	DefaultEndpoint               string
	DefaultMTLSEndpoint           string
	Scopes                        []string
	DefaultScopes                 []string
	EnableJwtWithScope            bool
	TokenSource                   oauth2.TokenSource
	Credentials                   *google.Credentials
	CredentialsFile               string // if set, Token Source is ignored.
	CredentialsJSON               []byte
	InternalCredentials           *google.Credentials
	UserAgent                     string
	APIKey                        string
	Audiences                     []string
	DefaultAudience               string
	HTTPClient                    *http.Client
	GRPCDialOpts                  []grpc.DialOption
	GRPCConn                      *grpc.ClientConn
	GRPCConnPool                  ConnPool
	GRPCConnPoolSize              int
	NoAuth                        bool
	TelemetryDisabled             bool
	ClientCertSource              func(*tls.CertificateRequestInfo) (*tls.Certificate, error)
	CustomClaims                  map[string]interface{}
	SkipValidation                bool
	ImpersonationConfig           *impersonate.Config
	EnableDirectPath              bool
	AllowNonDefaultServiceAccount bool

	// Google API system parameters. For more information please read:
	// https://cloud.google.com/apis/docs/system-parameters
	QuotaProject  string
	RequestReason string
}

DialSettings holds information needed to establish a connection with a Google API service.

func (*DialSettings) GetAudience

func (ds *DialSettings) GetAudience() string

GetAudience returns the user-provided audience, if set, or else falls back to the default audience.

func (*DialSettings) GetScopes

func (ds *DialSettings) GetScopes() []string

GetScopes returns the user-provided scopes, if set, or else falls back to the default scopes.

func (*DialSettings) HasCustomAudience

func (ds *DialSettings) HasCustomAudience() bool

HasCustomAudience returns true if a custom audience is provided by users.

func (*DialSettings) Validate

func (ds *DialSettings) Validate() error

Validate reports an error if ds is invalid.