It is part of the project to acquire a geographic specification and list of contained towns for Hungarian zip codes as we don't have those. Please note all Hungarian zip codes are four digit numbers.
The list of zip codes can be included at the start of the code such as 'let list_of_zip_codes = [ "1***", "2200-3100" ]; ' The code will be tested with some cases and accepted if those work. Integration with other parts of our software is not part of this project.
Hello, Nice to meet you I have rich experience in Google map api, mapbox, leaflet So I can provide result that you want on short time. Please send me message so that we can discuss more Thank you