/// <summary>
/// Base Constructor for the manager
/// </summary>
public AssetPropertyRetriever()
{
_swapi = RestService.For <IStarWarsApi>("https://swapi.co/api");
_returnedValues = new List <string>();
_addValuesLock = new object();
_typeDictionary = new Dictionary <string, Action <Film, string> >
{
{ "characters", ProcessPeople },
{ "planets", ProcessPlanets },
{ "starships", ProcessStarships }
};
}
/// <summary>
/// Activity 8.2: this overload accepts where and orderBy delegates.
/// Ideally, this should be reworked into the GetAllAsync method so that it has the same filter and sort options
/// </summary>
public static async Task <IEnumerable <Planet> > GetAllPlanetsAsync(this IStarWarsApi api, Func <Planet, bool> where = null, Func <Planet, object> orderBy = null)
{
var results = await GetAllPlanetsAsync(api);
if (where != null)
{
results = results.Where(where);
}
if (orderBy != null)
{
results = results.OrderBy(orderBy);
}
return(results);
}
/// <summary>
/// more generic way to get all pages of any endpoint that accepts a "page" argument
/// </summary>
private static async Task <IEnumerable <T> > GetAllAsync <T>(this IStarWarsApi api, Func <IStarWarsApi, int, Task <ApiResult <List <T> > > > invoke)
{
List <T> results = new List <T>();
int page = 0;
do
{
page++;
ApiResult <List <T> > result = await invoke(api, page);
results.AddRange(result.Data);
if (result.Next == null)
{
break;
}
} while (true);
return(results);
}
/// <summary>
/// this initial version of GetAllPlanetsAsync used a dedicated implementation not reusable with other methods,
/// but we're keeping it because it was an acceptable solution before implementing other API endpoints
/// </summary>
public static async Task <IEnumerable <Planet> > GetAllPlanetsAsyncOld(this IStarWarsApi api)
{
List <Planet> results = new List <Planet>();
int page = 0;
do
{
page++;
ApiResult <List <Planet> > result = await api.GetPlanetsAsync(page);
results.AddRange(result.Data);
if (result.Next == null)
{
break;
}
} while (true);
return(results);
}
public static async Task <IEnumerable <Film> > GetAllFilmsAsync(this IStarWarsApi api) => await GetAllAsync(api, (api, page) => api.GetFilmsAsync(page));
public static async Task <IEnumerable <Person> > GetAllPeopleAsync(this IStarWarsApi api) => await GetAllAsync(api, (api, page) => api.GetPeopleAsync(page));
/// <summary> /// this uses our more generic GetAllAsync method. Use this pattern going forward /// </summary> public static async Task <IEnumerable <Planet> > GetAllPlanetsAsync(this IStarWarsApi api) => await GetAllAsync(api, (api, page) => api.GetPlanetsAsync(page));
public StarWarsCoolService()
{
var settings = new RefitSettings();
Api = RestService.For <IStarWarsApi>("https://swapi.dev/api");
}
