Code to parse request

function.cs

public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, NextId keyTable, CloudTable tableOut, TraceWriter log)
{
    if (req == null)
    {
        return req.CreateResponse(HttpStatusCode.NotFound);
    }

    Request input = await req.Content.ReadAsAsync<Request>();

    if (input == null)
    {
        return req.CreateResponse(HttpStatusCode.NotFound);
    }

    var url = input.Input;
    bool tagMediums = input.TagMediums.HasValue ? input.TagMediums.Value : true;
    bool tagSource = (input.TagSource.HasValue ? input.TagSource.Value : true) || tagMediums;
    
    if (String.IsNullOrWhiteSpace(url))
    {
        throw new Exception("Need a URL to shorten!");
    }
}