Sendgrid through azure function

SendGrid.csx

#r "SendGrid"
using System.Net;
using SendGrid.Helpers.Mail;

public static HttpResponseMessage Run(HttpRequestMessage req, TraceWriter log, out Mail message)
{
    log.Info("C# HTTP trigger function processed a request.");

    // parse query parameter
    string name = req.GetQueryNameValuePairs()
        .FirstOrDefault(q => string.Compare(q.Key, "name", true) == 0)
        .Value;

    // Get request body
    dynamic data = req.Content.ReadAsAsync<object>().Result;

    // Set name to query string or body data
    name = name ?? data?.name;

    message = new Mail();
    message.Subject = "Someone passed a name to an azure function!";
    var personalization = new Personalization();
    personalization.AddTo(new Email("[email protected]"));   
    Content content = new Content
    {
        Type = "text/plain",
        Value =$"The name was {name}" 
    };
    message.AddContent(content);
    message.AddPersonalization(personalization);

    return name == null
        ? req.CreateResponse(HttpStatusCode.BadRequest, "Please pass a name on the query string or in the request body")
        : req.CreateResponse(HttpStatusCode.OK, "Hello " + name);
}