public IEnumerator FulfillUserItem(string @namespace, string userId, string accessToken,
FulfillmentRequest fulfillmentRequest, ResultCallback <FulfillmentResult> callback)
{
Assert.IsNotNull(@namespace, $"{nameof(@namespace)} cannot be null");
Assert.IsNotNull(userId, $"{nameof(userId)} cannot be null");
Assert.IsNotNull(accessToken, $"{nameof(accessToken)} cannot be null");
Assert.IsNotNull(fulfillmentRequest, $"{nameof(fulfillmentRequest)} cannot be null");
var request = HttpRequestBuilder
.CreatePost(this.baseUrl + "/admin/namespaces/{namespace}/users/{userId}/fulfillment")
.WithPathParam("namespace", @namespace)
.WithPathParam("userId", userId)
.WithBearerAuth(accessToken)
.WithContentType(MediaType.ApplicationJson)
.Accepts(MediaType.ApplicationJson)
.WithBody(fulfillmentRequest.ToUtf8Json())
.GetResult();
IHttpResponse response = null;
yield return(this.httpClient.SendRequest(request, rsp => response = rsp));
var result = response.TryParseJson <FulfillmentResult>();
callback.Try(result);
}
