Struct jwtTokenFileCallCreds

credentials/jwt/token_file_call_creds.go:39–51

jwtTokenFileCallCreds provides JWT token-based PerRPCCredentials that reads tokens from a file. This implementation follows the A97 JWT Call Credentials specification.

// tokens from a file.
// This implementation follows the A97 JWT Call Credentials specification.
type jwtTokenFileCallCreds struct {
	fileReader      *jwtFileReader
	backoffStrategy backoff.Strategy

	// cached data protected by mu
	mu               sync.Mutex
	cachedAuthHeader string    // "Bearer " + token
	cachedExpiry     time.Time // Slightly less than actual expiration time
	cachedError      error     // Error from last failed attempt
	retryAttempt     int       // Current retry attempt number
	nextRetryTime    time.Time // When next retry is allowed
	pendingRefresh   bool      // Whether a refresh is currently in progress
}

// NewTokenFileCallCredentials creates PerRPCCredentials that reads JWT tokens
// from the specified file path.