Release: Sprint/2022 17

This Merge Request is automatically created

src/SemanticSearch/Clients/ElasticsearchSearchClient.cs

@@ -244,7 +244,7 @@ namespace Coscine.SemanticSearch.Clients
         }
 
         // search
-        public async Task<IDictionary<string, JObject>> SearchAsync(string query, IEnumerable<string> projects, bool advanced, int size, int from, string sorting)
+        public async Task<IDictionary<string, JObject>> SearchAsync(string query, IEnumerable<string>? projects, bool advanced, int size, int from, string sorting)
         {
             // track_total_hits = true around query to get total value of results
             var searchType = "simple_query_string";
@@ -286,7 +286,7 @@ namespace Coscine.SemanticSearch.Clients
         /// </summary>
         /// <param name="projects">An enumerator containing the projects which are allowed.</param>
         /// <returns>A JProperty containing the specified visibility filter.</returns>
-        private JProperty CreateVisibilityFilter(IEnumerable<string> projects)
+        private JProperty CreateVisibilityFilter(IEnumerable<string>? projects)
         {
             /*
              * keyword "must" is regarded as a logical AND