public async Task InvokeAsync(
HttpContext context,
IAssetStorage assetStore,
JsonService jsonService)
{
AssetQuery query = await jsonService.Deserialize <AssetQuery>(context.Request.Body);
QueryResult <Asset> assets = await assetStore.GetAssetsAsync(query);
QueryResult <RestAsset> queryResult = new QueryResult <RestAsset>();
queryResult.Offset = assets.Offset;
queryResult.Count = assets.Count;
queryResult.TotalCount = assets.TotalCount;
queryResult.Items = assets.Items.Select(x => x.ToRest()).ToList();
string json = jsonService.Serialize(queryResult);
await context.Response.WriteAsync(json);
}