private void GetProductsList(ProductsPaginatedHandler callback, int?first = null, string after = null)
{
ConnectionLoader loader = new ConnectionLoader(Loader);
int countToLoad = first == null ? int.MaxValue : (int)first;
loader.QueryConnection(
(response) => {
QueryRootQuery query = null;
List <ProductEdge> edges = response != null ? response.data.shop().products().edges() : null;
if (edges != null)
{
countToLoad -= edges.Count;
}
if (response == null || (countToLoad > 0 && response.data.shop().products().pageInfo().hasNextPage()))
{
query = new QueryRootQuery();
query = new QueryRootQuery();
DefaultQueries.products.ShopProducts(
query: query,
imageResolutions: DefaultImageResolutions,
first: countToLoad > DefaultQueries.MaxProductPageSize ? DefaultQueries.MaxProductPageSize : countToLoad,
after: edges != null ? edges[edges.Count - 1].cursor() : after
);
}
return(query);
},
(response) => {
return(((QueryRoot)response).shop().products());
},
(response) => {
var error = (ShopifyError)response;
if (error != null)
{
callback(null, error, null);
}
else
{
string lastCursor = null;
if (response.data.shop().products().pageInfo().hasNextPage())
{
List <ProductEdge> productEdges = response.data.shop().products().edges();
lastCursor = productEdges[productEdges.Count - 1].cursor();
}
callback((List <Product>)response.data.shop().products(), error, lastCursor);
}
}
);
}
public void TestConnectionLoader()
{
int countRequests = 0;
ConnectionLoader ConnectionLoader = new ConnectionLoader(new QueryLoader(new CollectionTestLoader()));
List <QueryResponse> responsesToRequestQuery = new List <QueryResponse>();
QueryResponse mergedResponse = null;
ConnectionLoader.QueryConnection(
(response) => {
responsesToRequestQuery.Add(response);
if (countRequests < CollectionTestQueries.queries.Count)
{
countRequests++;
return(CollectionTestQueries.queries[countRequests - 1]);
}
else
{
return(null);
}
},
(response) => {
return(((QueryRoot)response).shop().products());
},
(response) => {
mergedResponse = response;
}
);
Assert.AreEqual(3, responsesToRequestQuery.Count);
Assert.AreEqual(null, responsesToRequestQuery[0]);
Assert.AreEqual("Product1", responsesToRequestQuery[1].data.shop().products().edges()[0].node().title());
Assert.AreEqual("Product2", responsesToRequestQuery[2].data.shop().products().edges()[0].node().title());
Assert.AreEqual(2, countRequests);
Assert.AreEqual(2, mergedResponse.data.shop().products().edges().Count);
}