Extensions

document.Extensions = new Dictionary<string, IAsyncApiExtension>
{
    ["boolean"] = new AsyncApiAny(false),
    ["string"] = new AsyncApiAny("test"),
    ["decimal"] = new AsyncApiAny(2.2),
    ["int"] = new AsyncApiAny(1),
    ["array"] = new AsyncApiAny(new List<string>()),
    ["object"] = new AsyncApiAny(new { test = 123 }),
};

Extension parsers

Extension parsers enable you to transform extensions, in any way you want. See example below.

asyncapi: 2.3.0
info:
  title: test
  version: 1.0.0
  contact:  
    name: API Support
    url: https://www.example.com/support
    email: support@example.com
channels:
  workspace:
    x-someValue: onetwothreefour

Func<AsyncApiAny, IAsyncApiExtension> valueExtensionParser = (any) =>
{
    if (any.TryGetValue<string>(out var value))
    {
        if (value == "onetwothreefour")
        {
            return new AsyncApiAny(1234);
        }
    }

    return new AsyncApiAny("No value provided");
};

var settings = new AsyncApiReaderSettings
{
    ExtensionParsers = new Dictionary<string, Func<AsyncApiAny, IAsyncApiExtension>>
    {
        { "x-someValue", valueExtensionParser },
    },
};

var reader = new AsyncApiStringReader(settings);
var doc = reader.Read(yaml, out var diagnostic);
Assert.AreEqual(AsyncApiAny.FromExtensionOrDefault<int>(doc.Channels["workspace"].Extensions["x-someValue"]), 1234); // True