AWS API Gateway Lambda authorizer REQUEST type does not have methodArn?

Question

Writing a custom API Gateway Lambda authorizer using C# and Im using the REQUEST authorizer (not TOKEN). Looking at their documentation I should have an available parameter called methodArn but looking at the class APIGatewayProxyRequest it's not listed from their SDK.

Is this the correct input parameter to use for my lambda authorizer?

namespace Amazon.Lambda.APIGatewayEvents
{
    public class APIGatewayProxyRequest
    {
        public APIGatewayProxyRequest();

        public string Resource { get; set; }
        public string Path { get; set; }
        public string HttpMethod { get; set; }
        public IDictionary<string, string> Headers { get; set; }
        public IDictionary<string, IList<string>> MultiValueHeaders { get; set; }
        public IDictionary<string, string> QueryStringParameters { get; set; }
        public IDictionary<string, IList<string>> MultiValueQueryStringParameters { get; set; }
        public IDictionary<string, string> PathParameters { get; set; }
        public IDictionary<string, string> StageVariables { get; set; }
        public ProxyRequestContext RequestContext { get; set; }
        public string Body { get; set; }
        public bool IsBase64Encoded { get; set; }

        <...SNIP...>
    }
}

Answer 1

Try using APIGatewayCustomAuthorizerRequest instead of APIGatewayProxyRequest .