Hi, Finally i found a much more acceptable solution :)
neoJsonMapping: mapper "Map the receiver from a json with <NeoJSONObjectMapping> <mapper>" mapper for: self do: [ :mapping | mapping mapAccessor: #locator mutator: #setLocator: to: 'booking'. ]. setLocator: aDictionary locator := aDictionary at: '@locator' regards, bruno -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html