private IPagination GetPaginationConfig()
{
IPagination pagination = null;
switch (PaginationParameterType)
{
case PaginationParameterType.PageNumber:
pagination = new PageNumberPagination(PaginationParameterName, IsZeroIndexed, PageSizeParameterName);
break;
case PaginationParameterType.ItemOffset:
pagination = new ItemOffsetPagination(PaginationParameterName, IsZeroIndexed, PageSizeParameterName, MaxRecordsParam);
break;
case PaginationParameterType.Token:
pagination = new TokenPagination(PaginationParameterName, ResponseTokenName, PageSizeParameterName);
break;
case PaginationParameterType.NextPageUrl:
pagination = new NextPageUrlPagination(ResponseTokenName, PageSizeParameterName);
break;
case PaginationParameterType.None:
default:
return(null);
}
pagination = GetSorting(pagination);
return(pagination);
}
public async Task LoadDataNextPageUrlPagination_NextPagePath()
{
var pagination = new NextPageUrlPagination("invalid", null);
var config = new RestApiDataConfig
{
Url = new Uri(@"https://graph.facebook.com/v2.5/8195378771/posts?&access_token=351842111678417|74b187b46cf37a8ef6349b990bc039c2&fields=id,message,from,created_time,link,full_picture"),
PaginationConfig = pagination
};
var dataProvider = new RestApiDataProvider();
IEnumerable <Facebook.FacebookSchema> data = await dataProvider.LoadDataAsync(config, 20, new Facebook.FacebookParser());
Assert.IsTrue(dataProvider.HasMoreItems, $"{nameof(dataProvider.HasMoreItems)} is false");
ArgumentNullException exception = await ExceptionsAssert.ThrowsAsync <ArgumentNullException>(async() => await dataProvider.LoadMoreDataAsync <Facebook.FacebookSchema>());
}
public async Task LoadDataNextPageUrlPagination()
{
var pagination = new NextPageUrlPagination("paging.next", string.Empty);
var config = new RestApiDataConfig
{
Url = new Uri(@"https://graph.facebook.com/v2.5/8195378771/posts?&access_token=351842111678417|74b187b46cf37a8ef6349b990bc039c2&fields=id,message,from,created_time,link,full_picture"),
PaginationConfig = pagination
};
var dataProvider = new RestApiDataProvider();
IEnumerable <Facebook.FacebookSchema> data = await dataProvider.LoadDataAsync(config, 20, new Facebook.FacebookParser());
Assert.IsTrue(dataProvider.HasMoreItems, $"{nameof(dataProvider.HasMoreItems)} is false");
data = await dataProvider.LoadMoreDataAsync <Facebook.FacebookSchema>();
Assert.IsNotNull(data);
Assert.AreNotEqual(data.Count(), 0);
}
public async void GetItemsNextUrlPagination()
{
string endPoint = "http://MyRestApiEndPoint.com";
var maxRecordsParam = 20;
var responseTokenName = "meta.next_page";
var pageSizeParemeterName = "limit";
var orderByParameterName = "order_by";
var orderByParameterValue = "date";
var orderDirectionParameterName = "order";
var orderDirectionParameterValue = "DESC";
var paginationConfig = new NextPageUrlPagination(responseTokenName, pageSizeParemeterName)
{
OrderByParameterName = orderByParameterName,
OrderByParameterValue = orderByParameterValue,
OrderDirectionParameterName = orderDirectionParameterName,
OrderDirectionParameterValue = orderDirectionParameterValue
};
var config = new RestApiDataConfig()
{
Url = new Uri(endPoint),
PaginationConfig = paginationConfig
};
var parser = new JsonParser <MySchema>();
_dataProvider = new RestApiDataProvider();
var items = await _dataProvider.LoadDataAsync(config, maxRecordsParam, parser);
foreach (var item in items)
{
Items.Add(item);
}
}
