public static JsonNode GetProperty()

in tools/code/common/Json.cs [99:200]
83 lines of code
6 McCabe index (conditional complexity)

    public static JsonNode GetProperty(this JsonObject? jsonObject, string propertyName) =>
        jsonObject.TryGetProperty(propertyName)
                  .IfLeftThrow();

    public static Either<string, JsonNode> TryGetProperty(this JsonObject? jsonObject, string propertyName) =>
        jsonObject is null
        ? "JSON object is null."
        : jsonObject.TryGetPropertyValue(propertyName, out var property)
            ? property is null
                ? $"Property '{propertyName}' is null."
                : property
            : $"Property '{propertyName}' is missing.";

    private static T IfLeftThrow<T>(this Either<string, T> either) =>
        either.IfLeft(error => throw new JsonException(error));

    public static JsonObject GetJsonObjectProperty(this JsonObject? jsonObject, string propertyName) =>
        jsonObject.TryGetJsonObjectProperty(propertyName)
                  .IfLeftThrow();

    public static Either<string, JsonObject> TryGetJsonObjectProperty(this JsonObject? jsonObject, string propertyName) =>
        jsonObject.TryGetProperty(propertyName)
                  .Bind(JsonNodeExtensions.TryAsJsonObject)
                  .BindPropertyError(propertyName);

    private static Either<string, T> BindPropertyError<T>(this Either<string, T> either, string propertyName) =>
        either.MapLeft(error => $"Property '{propertyName}' is invalid. {error}");

    public static Either<string, JsonArray> TryGetJsonArrayProperty(this JsonObject? jsonObject, string propertyName) =>
        jsonObject.TryGetProperty(propertyName)
                  .Bind(JsonNodeExtensions.TryAsJsonArray)
                  .BindPropertyError(propertyName);

    public static Uri GetAbsoluteUriProperty(this JsonObject jsonObject, string propertyName) =>
        jsonObject.TryGetAbsoluteUriProperty(propertyName)
                  .IfLeftThrow();

    public static Either<string, Uri> TryGetAbsoluteUriProperty(this JsonObject? jsonObject, string propertyName) =>
        jsonObject.TryGetProperty(propertyName)
                  .Bind(JsonNodeExtensions.TryAsAbsoluteUri)
                  .BindPropertyError(propertyName);

    public static Either<string, string> TryGetStringProperty(this JsonObject? jsonObject, string propertyName) =>
        jsonObject.TryGetProperty(propertyName)
                  .Bind(JsonNodeExtensions.TryAsString)
                  .BindPropertyError(propertyName);

    public static string GetNonEmptyOrWhiteSpaceStringProperty(this JsonObject jsonObject, string propertyName) =>
        jsonObject.TryGetNonEmptyOrWhiteSpaceStringProperty(propertyName)
                  .IfLeftThrow();

    public static Either<string, string> TryGetNonEmptyOrWhiteSpaceStringProperty(this JsonObject? jsonObject, string propertyName) =>
        jsonObject.TryGetProperty(propertyName)
                  .Bind(JsonNodeExtensions.TryAsString)
                  .Bind(value => string.IsNullOrWhiteSpace(value)
                                    ? Either<string, string>.Left($"Property '{propertyName}' is empty or whitespace.")
                                    : Either<string, string>.Right(value))
                  .BindPropertyError(propertyName);

    public static string GetStringProperty(this JsonObject jsonObject, string propertyName) =>
        jsonObject.TryGetStringProperty(propertyName)
                  .IfLeftThrow();

    public static int GetIntProperty(this JsonObject jsonObject, string propertyName) =>
        jsonObject.TryGetIntProperty(propertyName)
                  .IfLeftThrow();

    public static Either<string, int> TryGetIntProperty(this JsonObject? jsonObject, string propertyName) =>
        jsonObject.TryGetProperty(propertyName)
                  .Bind(JsonNodeExtensions.TryAsInt)
                  .BindPropertyError(propertyName);

    public static bool GetBoolProperty(this JsonObject jsonObject, string propertyName) =>
        jsonObject.TryGetBoolProperty(propertyName)
                  .IfLeftThrow();

    public static Either<string, bool> TryGetBoolProperty(this JsonObject? jsonObject, string propertyName) =>
        jsonObject.TryGetProperty(propertyName)
                  .Bind(JsonNodeExtensions.TryAsBool)
                  .BindPropertyError(propertyName);

    public static JsonObject Parse<T>(T obj) =>
        TryParse(obj)
            .IfLeft(() => throw new JsonException($"Could not parse {typeof(T).Name} as a JSON object."));

    public static Either<string, JsonObject> TryParse<T>(T obj) =>
        JsonSerializer.SerializeToNode(obj, SerializerOptions)
                      .TryAsJsonObject();

    [return: NotNullIfNotNull(nameof(jsonObject))]
    public static JsonObject? SetProperty(this JsonObject? jsonObject, string propertyName, JsonNode? jsonNode)
    {
        if (jsonObject is null)
        {
            return null;
        }
        else
        {
            jsonObject[propertyName] = jsonNode;
            return jsonObject;
        }
    }