Need help to properly map French cities for multi fields search and autocomplete

[PatriceMarin]

Hi,

I'm currently working on French geolocation data.

Here is my model:

public class Ville
    {
        public Guid Id { get; set; }

        public string Name { get; set; }

        public string ZipCode { get; set; }

        public string[] MultilpleZipCopde { get; set; }
        
        public GeoLocation Centroide { get; set; }
        
        public GeoLocation Min { get; set; }
        
        public GeoLocation Max { get; set; }
    }

I need to be able to perform quick search such as:

• search by name

• search by zip code

• perform autocomplete

I've facing some issues with:

• the French language when there is an accent in the city name

• the search on the zip code, the result of my search is empty when I set a zip code

I'm using ElasticSearch v7.2, .netCore, C#, Nest v7.0.1

Can someone give me a proper way to design my index's mapping & settings, please ?
I appreciate your help.

Thanks in advance,

Patrice

[dadoonet (David Pilato)]

You can use the french analyzer or add an asciifolding token filter if you are using custom analyzer.

I wrote some examples at the end of this gist:

https://gist.github.com/dadoonet/f911291c4dd19b0802031db3064c648f

HTH

[PatriceMarin]

Hi David,

Thanks for your quick reply. Your examples help me a lot.
I'm now able to search by name or zip code, even with accents!!

Thanks again!!

Patrice