public async Task <List <VehicleModel> > GetAllVehiclesAsync()
{
StringBuilder url = new StringBuilder();
//base address https://swapi.co/api/
url.Append(ApiHelper.ApiClient.BaseAddress.ToString());
url.Append("vehicles");
using (HttpResponseMessage response = await ApiHelper.ApiClient.GetAsync(url.ToString()))
{
if (response.IsSuccessStatusCode)
{
List <VehicleModel> vehicles = new List <VehicleModel>();
//get first page of planets
string responseString = await response.Content.ReadAsStringAsync();
JObject results = JsonConvert.DeserializeObject <JObject>(responseString);
vehicles.AddRange(
results.Value <JArray>("results")
.ToObject <List <VehicleModel> >());
string next = results.GetValue("next").Value <string>();
//fetch the rest of the planet pages
while (!string.IsNullOrWhiteSpace(next) && next != "null")
{
VehicleResponseModel vehicleResponse = await GetVehiclePageAsync(next);
next = vehicleResponse.ResponseNext;
vehicles.AddRange(vehicleResponse.vehicles);
}
return(vehicles);
}
else
{
throw new Exception(response.ReasonPhrase);
}
}
}
//SS 27/3 Get method to request all vehicle details from the database
public string Get()
{
//Create a response object which will hold a list of vehicles, list of fuel types and any error messages
VehicleResponseModel vrm = new VehicleResponseModel();
try
{
//Get all vehicle data
List <VehicleMake> vehicleMakes = _context.VehicleMake
.Include(vm => vm.VehicleModel)
.ThenInclude(vm => vm.Vehicle)
.ToList();
//Get all fuel type data
List <FuelTypeModel> fuelTypes = _context.FuelType
.Select(ft => new FuelTypeModel {
FuelTypeId = ft.FuelTypeId, FuelTypeName = ft.Name
})
.ToList();
//Assemble response
vrm.VehicleMakes = vehicleMakes;
vrm.FuelTypes = fuelTypes;
vrm.Success = true;
}
catch (Exception e)
{
//If an exception was thrown, add the error message
vrm.Success = false;
vrm.ErrorMessage = e.Message;
}
return(JsonConvert.SerializeObject(vrm, Formatting.Indented,
new JsonSerializerSettings()
{
ReferenceLoopHandling = ReferenceLoopHandling.Ignore
}));
}
public async Task <VehicleResponseModel> GetVehiclePageAsync(string url)
{
using (HttpResponseMessage response = await ApiHelper.ApiClient.GetAsync(url.ToString()))
{
if (response.IsSuccessStatusCode)
{
VehicleResponseModel vehicleResponse = new VehicleResponseModel();
string responseString = await response.Content.ReadAsStringAsync();
JObject results = JsonConvert.DeserializeObject <JObject>(responseString);
vehicleResponse.vehicles.AddRange(
results.Value <JArray>("results")
.ToObject <List <VehicleModel> >());
vehicleResponse.ResponseNext = results.GetValue("next").Value <string>();
return(vehicleResponse);
}
else
{
throw new Exception(response.ReasonPhrase);
}
}
}
