Create, Read, Update, Submit of Service Requests Using API

using System;
using MTOA.DomainObjects;
using System.Linq;
using System.Threading.Tasks;
using System.Web.Mvc;
using DTO;
using MTOA.DomainObjects.DTO;
using RestSharp;
using Newtonsoft.Json;
using Web.Portal.Helpers;

namespace Web.Portal.Controllers
{
    public class APIExampleController : Controller
    {
        private const int MyServiceId = 54;
        private const int UserId = 3755;
        private const string MyDocumentVersion = "MYSERV_V1.0";
        private const string ApiUri = "https://wwwappstest.***/Saf-Sec-Sur/13/MTAPI-INT";
        private const string ApiKey = "--- YOUR API KEY ---";
        private const string JwtKey = "--- YOUR JWT ---";

        private RestClient _restClient;
        private RestRequest _request;
        private int _serviceRequestId;

        public async Task<ActionResult> ServiceRequest()
        {
            #region "Check Enrollment"

            CreateRestClient("/api/v1/account/enrollments", Method.GET);
            _request.AddParameter("userId", UserId);
            _request.AddParameter("serviceId", MyServiceId);

            var response = await _restClient.ExecuteAsync(_request);
            var content = JsonConvert.DeserializeObject<System.Collections.Generic.ICollection<EnrollmentInfo>>(response.Content);

            // Verify that the current user is enrolled in your service.
            if (content.All(x => x.ServiceId != MyServiceId))
            {
                Response.Write($@"User {UserId} is not enrolled in service id {MyServiceId}.");
            }

            #endregion

            #region "Create New Service Request"

            // Create a new service request.
            CreateRestClient("/api/v1/servicerequests", Method.POST);
            _request.AddParameter("userId", UserId, ParameterType.QueryString);
            _request.AddParameter("serviceId", MyServiceId, ParameterType.QueryString);
            _request.AddParameter("englishName", "a_displayNameEn", ParameterType.QueryString);
            _request.AddParameter("frenchName", "a_displayNameFr", ParameterType.QueryString);

            var restResponse = await _restClient.ExecuteAsync<ServiceRequestCreationResult>(_request);
            _serviceRequestId = restResponse.Data.ServiceRequestId;

            #endregion

            #region "Add Artifact"

            // Create and add your service request document (artifact).
            var document = new MyServiceRequestData { DisplayNameEn = "b_displayNameEn", DisplayNameFr = "b_displayNameFr" };
            var json = JsonConvert.SerializeObject(document);

            CreateRestClient("/api/v1/artifacts", Method.POST);
            _request.AddParameter("serviceRequestId", _serviceRequestId, ParameterType.QueryString);
            _request.AddParameter("artifactType", ArtifactType.JsonMetadata, ParameterType.QueryString);
            _request.AddParameter("version", MyDocumentVersion, ParameterType.QueryString);
            _request.AddParameter("userId", UserId, ParameterType.QueryString);
            _request.AddParameter("artifact", json, ParameterType.RequestBody);
            await _restClient.ExecuteAsync(_request);

            #endregion

            #region "Get Service Request Document"

            // Retrieve the service request document.
            CreateRestClient("/api/v1/artifacts", Method.GET);
            _request.AddParameter("serviceRequestId", _serviceRequestId);
            _request.AddParameter("artifactType", ArtifactType.JsonMetadata);
            await _restClient.ExecuteAsync(_request);

            #endregion


            #region "Update Service Request"

            // Update the service request document with some new data.
            document.DisplayNameEn = "en";
            document.DisplayNameFr = "fr";
            json = JsonConvert.SerializeObject(document);

            CreateRestClient("/api/v1/artifacts", Method.PUT);
            _request.AddParameter("serviceRequestId", _serviceRequestId, ParameterType.QueryString);
            _request.AddParameter("artifactType", ArtifactType.JsonMetadata, ParameterType.QueryString);
            _request.AddParameter("version", "2.0", ParameterType.QueryString);
            _request.AddParameter("userId", UserId, ParameterType.QueryString);
            _request.AddParameter("artifact", json, ParameterType.RequestBody);
            await _restClient.ExecuteAsync(_request);

            #endregion

            #region "Update Status"

            CreateRestClient("/api/v1/servicerequests/{id}/updatestatus", Method.POST);
            _request.AddUrlSegment("id", _serviceRequestId);
            _request.AddParameter("userId", UserId, ParameterType.QueryString);
            _request.AddParameter("serviceRequestStatus", ServiceRequestStatus.Submitted.ToString(), ParameterType.QueryString);
            await _restClient.ExecuteAsync(_request);

            #endregion

            #region "Add Signed Document"

            var signed = JsonConvert.SerializeObject(GetSignatureInformation());

            // Attach an eSignature to the service request.
            CreateRestClient("/api/v1/artifacts", Method.POST);
            _request.AddParameter("serviceRequestId", _serviceRequestId, ParameterType.QueryString);
            _request.AddParameter("artifactType", ArtifactType.SignedJsonDocument, ParameterType.QueryString);
            _request.AddParameter("version", MyDocumentVersion, ParameterType.QueryString);
            _request.AddParameter("userId", UserId, ParameterType.QueryString);
            _request.AddParameter("artifact", signed, ParameterType.RequestBody);
            await _restClient.ExecuteAsync(_request);

            #endregion

            Response.Write($@"Service request id: {restResponse.Data.ServiceRequestId} was successfully submitted.");

            return null;
        }

        private ESignature GetSignatureInformation()
        {
            return new ESignature
            {
                UserId = UserId.ToString(),
                FirstName = "Jane",
                LastName = "Smith",
                SignatureDateTime = DateTime.Now,
                IpAddress = WebRequestExtension.GetUserIPAddress(),
                HostName = WebRequestExtension.GetHostName(),
                BrowserDetails = WebRequestExtension.GetBrowserDetails()
            };
        }

        private void CreateRestClient(string resource, Method method)
        {
            _restClient = new RestClient(ApiUri);
            _request = new RestRequest { UseDefaultCredentials = true, Resource = resource, Method = method };
            _request.AddHeader("api-key", ApiKey);
            _request.AddHeader("app-jwt", JwtKey);
        }
    }
}