Blazor: Ability to set the JsonSerializerOptions.IgnoreNullValues property for JS Interop.

[user72356]

Blazor appears to have no mechanism to configure the global serialization/deserialization process when making JS Interop function calls. For instance I would like the ability to ignore null values, a facility provided by System.Text.Json via the JsonSerializerOptions.IgnoreNullValues property.

The only way today is to manually serialize my parameters before feeding them into InvokeVoid:

var options = new JsonSerializerOptions
{
    IgnoreNullValues = true
};

var arg = JsonSerializer.ToString<WeatherForecast>(value, options);

[mkArtakMSFT]

Thanks for contacting us. This is a dupe of #12685
If you want, you can serialize the value as a string and send that (as a JSON object).