1 files changed, 13 insertions, 0 deletions
diff --git a/src/include/taler_merchantdb_plugin.h b/src/include/taler_merchantdb_plugin.h
index 0397b9aa..6756a681 100644
--- a/src/include/taler_merchantdb_plugin.h
+++ b/src/include/taler_merchantdb_plugin.h
@@ -783,6 +783,19 @@ struct TALER_MERCHANTDB_Plugin
                       void *cb_cls);
 
   /**
+   * Lookup authentication data of an instance.
+   *
+   * @param cls closure
+   * @param instance_id instance to query
+   * @param[out] ias where to store the auth data
+   */
+  enum GNUNET_DB_QueryStatus
+  (*lookup_instance_auth)(void *cls,
+                          const char *instance_id,
+                          struct TALER_MERCHANTDB_InstanceAuthSettings *ias);
+
+
+  /**
    * Insert information about an instance into our database.
    *
    * @param cls closure