I'm writing an RSS reader using this example https://github.com/dotnet/SyndicationFeedReaderWriter
I want to record all ISyndicationItem's to return as a list. The compiler error I'm getting is "Error CS1983 The return type of an async method must be void, Task, Task, a task-like type, IAsyncEnumerable, or IAsyncEnumerator" What is the most ideal way to do this?
using Microsoft.SyndicationFeed;
using Microsoft.SyndicationFeed.Rss;
using System.Collections.Generic;
using System.Xml;
static async List<ISyndicationItem> ReadRSSFeed(string inputUri)
{
var itemList = new List<ISyndicationItem>();
using (var xmlReader = XmlReader.Create(inputUri, new XmlReaderSettings() { Async = true }))
{
var feedReader = new RssFeedReader(xmlReader);
while (await feedReader.Read())
{
switch (feedReader.ElementType)
{
// Read category
case SyndicationElementType.Category:
ISyndicationCategory category = await feedReader.ReadCategory();
break;
// Read Image
case SyndicationElementType.Image:
ISyndicationImage image = await feedReader.ReadImage();
break;
// Read Item
case SyndicationElementType.Item:
ISyndicationItem item = await feedReader.ReadItem();
itemList.Add(item);
break;
// Read link
case SyndicationElementType.Link:
ISyndicationLink link = await feedReader.ReadLink();
break;
// Read Person
case SyndicationElementType.Person:
ISyndicationPerson person = await feedReader.ReadPerson();
break;
// Read content
default:
ISyndicationContent content = await feedReader.ReadContent();
break;
}
}
}
return itemList;
}
CodePudding user response:
Just return Task<T>
instead of T
. Inside the method you still return an instance of T
.
So should be:
static async Task<List<ISyndicationItem>> ReadRSSFeed(string inputUri)