Add support for case-sensitive object serialization

[nyrk]

Currently, it seems that serialization produces schemas in which the first letter of the properties is lowercase, even if in the original class is upper case.

For instance, if I have a class

public class MyWonderfulClass
{
        [Required]
        public string Name { get; protected set; }

        [Required]
        public string Colour { get; protected set; }
}

Saunter produces something like the following

"myWonderfulClass": {
        "id": "myWonderfulClass",
        "type": "object",
        "additionalProperties": false,
        "required": [
          "name",
          "colour"
        ],
        "properties": {
          "name": {
            "type": "string",
            "minLength": 1
          },
          "colour": {
            "type": "string",
            "minLength": 1
          }
        }

(in which the first letter of each property has been converted to lower-case).

It would be useful to have a setting to keep the original class case convention (i.e. to keep property case unchaged).

For instance, using the following code in a command-line console app:

JsonSchemaGeneratorSettings jsetting = new JsonSchemaGeneratorSettings();
jsetting.FlattenInheritanceHierarchy = true;
JsonSchema schema = JsonSchema.FromType<MyWonderfulClass>(jsetting );
string schemaString = schema.ToJson();
Console.WriteLine(schemaString);

it possible to obtain the schema serialization in which the first letter of each property is uppercase (reflecting the original class data-model).

[JanEggers]

https://github.com/tehmantra/saunter/blob/22fe8913ffe380af3d2f93004a8ce556b7fdf1e4/src/Saunter/AsyncApiOptions.cs#L52-L62

you need to set the asyncapioptions.JsonSchemaGeneratorSettings.SerializerSettings.ContractResolver

[m-wild]

I was trying to get this working, looks like you need to replace the whole SerializerSettings object, you can't just set the ContractResolver 🤷‍♂️

services.AddAsyncApiSchemaGeneration(options =>
{
    options.JsonSchemaGeneratorSettings.TypeNameGenerator = new DefaultTypeNameGenerator();
    options.JsonSchemaGeneratorSettings.SerializerSettings = new JsonSerializerSettings
    {
        ContractResolver = new DefaultContractResolver(),
    };
}

I will add some examples to the README so no one ever has to waste an hour to discover this too 😅

[nyrk]

Hi guys, thanks for your prompt reply. @tehmantra : your hint fits perfectly my needs: great! 🥇

options.JsonSchemaGeneratorSettings.TypeNameGenerator = new DefaultTypeNameGenerator();
options.JsonSchemaGeneratorSettings.SerializerSettings = new JsonSerializerSettings
{
   ContractResolver = new DefaultContractResolver(),
};
options.JsonSchemaGeneratorSettings.SerializerSettings.Formatting = Formatting.Indented;

I think it could be helpful to add this piece of information in the README.

Thank you very much for your help.