fix: token check and error unwrapping (#3648)

* fix: token check and error unwrapping

* remove unused code

internal/errors/already_exists.go

@@ -38,3 +38,7 @@ func IsErrorAlreadyExists(err error) bool {
 	_, ok := err.(AlreadyExists)
 	return ok
 }
+
+func (err *AlreadyExistsError) Unwrap() error {
+	return err.CaosError
+}

internal/errors/deadline_exceeded.go

@@ -40,3 +40,7 @@ func (err *DeadlineExceededError) Is(target error) bool {
 	}
 	return err.CaosError.Is(t.CaosError)
 }
+
+func (err *DeadlineExceededError) Unwrap() error {
+	return err.CaosError
+}

internal/errors/internal.go

@@ -40,3 +40,7 @@ func (err *InternalError) Is(target error) bool {
 	}
 	return err.CaosError.Is(t.CaosError)
 }
+
+func (err *InternalError) Unwrap() error {
+	return err.CaosError
+}

internal/errors/invalid_argument.go

@@ -38,3 +38,7 @@ func (err *InvalidArgumentError) Is(target error) bool {
 	}
 	return err.CaosError.Is(t.CaosError)
 }
+
+func (err *InvalidArgumentError) Unwrap() error {
+	return err.CaosError
+}

internal/errors/not_found.go

@@ -33,3 +33,7 @@ func (err *NotFoundError) Is(target error) bool {
 	}
 	return err.CaosError.Is(t.CaosError)
 }
+
+func (err *NotFoundError) Unwrap() error {
+	return err.CaosError
+}

internal/errors/permission_denied.go

@@ -40,3 +40,7 @@ func (err *PermissionDeniedError) Is(target error) bool {
 	}
 	return err.CaosError.Is(t.CaosError)
 }
+
+func (err *PermissionDeniedError) Unwrap() error {
+	return err.CaosError
+}

internal/errors/precondition_failed.go

@@ -40,3 +40,7 @@ func (err *PreconditionFailedError) Is(target error) bool {
 	}
 	return err.CaosError.Is(t.CaosError)
 }
+
+func (err *PreconditionFailedError) Unwrap() error {
+	return err.CaosError
+}

internal/errors/unauthenticated.go

@@ -40,3 +40,7 @@ func (err *UnauthenticatedError) Is(target error) bool {
 	}
 	return err.CaosError.Is(t.CaosError)
 }
+
+func (err *UnauthenticatedError) Unwrap() error {
+	return err.CaosError
+}

internal/errors/unavailable.go

@@ -40,3 +40,7 @@ func (err *UnavailableError) Is(target error) bool {
 	}
 	return err.CaosError.Is(t.CaosError)
 }
+
+func (err *UnavailableError) Unwrap() error {
+	return err.CaosError
+}

internal/errors/unimplemented.go

@@ -40,3 +40,7 @@ func (err *UnimplementedError) Is(target error) bool {
 	}
 	return err.CaosError.Is(t.CaosError)
 }
+
+func (err *UnimplementedError) Unwrap() error {
+	return err.CaosError
+}

internal/errors/unknown.go

@@ -40,3 +40,7 @@ func (err *UnknownError) Is(target error) bool {
 	}
 	return err.CaosError.Is(t.CaosError)
 }
+
+func (err *UnknownError) Unwrap() error {
+	return err.CaosError
+}