ADDED: handling of meta-data items in REST libraries.

"description" and "keywords" must hold string values;
"footprint_filters" can either hold a (space-
separated) string value, or an array of strings.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/20750

common/http_lib/http_lib_connection.cpp

@@ -255,6 +255,27 @@ bool HTTP_LIB_CONNECTION::SelectOne( const std::string& aPartID, HTTP_LIB_PART&
             // Add field to fields list
             aFetchedPart.fields.push_back( std::make_pair( key, std::make_tuple( value, visible ) ) );
         }
+
+        if( response.contains( "description" ) )
+            aFetchedPart.desc = response.at( "description" );
+
+        if( response.contains( "keywords" ) )
+            aFetchedPart.keywords = response.at( "keywords" );
+
+        if( response.contains( "footprint_filters" ) )
+        {
+            nlohmann::json filters_json = response.at( "footprint_filters" );
+
+            if( filters_json.is_array() )
+            {
+                for( const auto& val : filters_json )
+                    aFetchedPart.fp_filters.push_back( val );
+            }
+            else
+            {
+                aFetchedPart.fp_filters.push_back( filters_json );
+            }
+        }
     }
     catch( const std::exception& e )
     {

eeschema/sch_io/http_lib/sch_io_http_lib.cpp

@@ -370,14 +370,12 @@ LIB_SYMBOL* SCH_IO_HTTP_LIB::loadSymbolFromPart( const wxString& aSymbolName,
         else if( !symbolId.IsValid() )
         {
             wxLogTrace( traceHTTPLib, wxT( "loadSymbolFromPart: source symbol id '%s' is invalid, "
-                                           "will create empty symbol" ),
-                        symbolIdStr );
+                                           "will create empty symbol" ), symbolIdStr );
         }
         else
         {
             wxLogTrace( traceHTTPLib, wxT( "loadSymbolFromPart: source symbol '%s' not found, "
-                                           "will create empty symbol" ),
-                        symbolIdStr );
+                                           "will create empty symbol" ), symbolIdStr );
         }
     }
 
@@ -464,6 +462,16 @@ LIB_SYMBOL* SCH_IO_HTTP_LIB::loadSymbolFromPart( const wxString& aSymbolName,
         }
     }
 
+    symbol->SetDescription( aPart.desc );
+    symbol->SetKeyWords( aPart.keywords );
+
+    wxArrayString filters;
+
+    for( const std::string& filter : aPart.fp_filters )
+        filters.push_back( filter );
+
+    symbol->SetFPFilters( filters );
+
     return symbol;
 }
 

include/http_lib/http_lib_settings.h

@@ -54,7 +54,11 @@ struct HTTP_LIB_PART
 
     std::time_t lastCached = 0;
 
-    std::vector<std::pair<std::string, std::tuple<std::string, bool>>> fields; ///< additional generic fields
+    std::string              desc;
+    std::string              keywords;
+    std::vector<std::string> fp_filters;
+
+    std::vector<std::pair<std::string, std::tuple<std::string, bool>>> fields;
 };