RestSharp query returning NotFound - json

Question

This is my first usage of RestSharp
I am trying to connect to HubSpot using their FormsAPI (https://legacydocs.hubspot.com/docs/methods/forms/submit_form)
Using .Net, C#, MVC.
When I run in Fiddler, it works.
Here is my C# code, when I run it, I get a StatusCode of "NotFound". I am sure it is something simple I am missing?
var client = new RestClient("https://api.hsforms.com");
var request = new RestRequest("submissions/v3/integration/submit/{PortalId}/{formGuid}", Method.POST);
request.AddUrlSegment("portalId", "[myportalid]");
request.AddUrlSegment("formGuid", "[myformid]");
request.AddQueryParameter("hapikey", "[myapikey]");
request.RequestFormat = DataFormat.Json;
request.AddParameter("firstname", "testfirstname");
request.AddParameter("lastname", "testlastname");
request.AddParameter("email", "testemail#emailaddress.com");
request.AddParameter("business_unit", "Test");

Answer 1

It is better to create model of c# class and serialize it to Json and send POST request.
Example of RestSharp request
public async Task SendHubSpotRequest()
{
var PortalId = 1;
var formGuid = 1;
var client = new RestClient("https://api.hsforms.com");
var request = new RestRequest($"submissions/v3/integration/submit/{PortalId}/{formGuid}", Method.POST);
var hubSpotRequest = new HubSpotRequest()
{
SubmittedAt = "1517927174000",
Fields = new Field[]
{
new Field() { Name = "email", Value = "testemail#emailaddress.com" },
new Field() { Name = "firstname", Value = "testfirstname" },
new Field() { Name = "lastname", Value = "testlastname" }
},
Context = new Context
{
Hutk = "hutk",
PageUri = "www.example.com/page",
PageName = "Example page"
},
LegalConsentOptions = new LegalConsentOptions
{
Consent = new Consent
{
// Fill other params
}
}
};
request.AddParameter("application/json; charset=utf-8", JsonConvert.SerializeObject(hubSpotRequest), ParameterType.RequestBody);
var response = await client.ExecuteAsync(request);
var responseContent = response.Content;
}
C# classes of body json model
public class HubSpotRequest
{
[JsonProperty("submittedAt")]
public string SubmittedAt { get; set; }
[JsonProperty("fields")]
public Field[] Fields { get; set; }
[JsonProperty("context")]
public Context Context { get; set; }
[JsonProperty("legalConsentOptions")]
public LegalConsentOptions LegalConsentOptions { get; set; }
}
public class Context
{
[JsonProperty("hutk")]
public string Hutk { get; set; }
[JsonProperty("pageUri")]
public string PageUri { get; set; }
[JsonProperty("pageName")]
public string PageName { get; set; }
}
public class Field
{
[JsonProperty("name")]
public string Name { get; set; }
[JsonProperty("value")]
public string Value { get; set; }
}
public class LegalConsentOptions
{
[JsonProperty("consent")]
public Consent Consent { get; set; }
}
public class Consent
{
[JsonProperty("consentToProcess")]
public bool ConsentToProcess { get; set; }
[JsonProperty("text")]
public string Text { get; set; }
[JsonProperty("communications")]
public Communication[] Communications { get; set; }
}
public class Communication
{
[JsonProperty("value")]
public bool Value { get; set; }
[JsonProperty("subscriptionTypeId")]
public long SubscriptionTypeId { get; set; }
[JsonProperty("text")]
public string Text { get; set; }
}