support client credentials

internal/permissions/options.go

@@ -1,6 +1,8 @@
 package permissions
 
 import (
+	"net/http"
+
 	"go.uber.org/zap"
 )
 
@@ -15,3 +17,12 @@ func WithLogger(logger *zap.SugaredLogger) Option {
 		return nil
 	}
 }
+
+// WithHTTPClient sets the http client to be used by the client.
+func WithHTTPClient(client *http.Client) Option {
+	return func(c *Client) error {
+		c.httpClient = client
+
+		return nil
+	}
+}