diff --git a/testdata/example.go b/testdata/example.go new file mode 100644 index 0000000..57bc772 --- /dev/null +++ b/testdata/example.go @@ -0,0 +1,46 @@ +package main + +/* +This is a minimal sample application, demonstrating how to set up an RSS feed +for regular polling of new channels/items. + +Build & run with: + + $ 6g example.go && 6l example.6 && ./6.out + +*/ + +import ( + "fmt" + rss "github.com/jteeuwen/go-pkg-rss" + "os" + "time" +) + +func main() { + // This sets up a new feed and polls it for new channels/items. + // Invoke it with 'go PollFeed(...)' to have the polling performed in a + // separate goroutine, so you can continue with the rest of your program. + PollFeed("http://blog.case.edu/news/feed.atom", 5) +} + +func PollFeed(uri string, timeout int) { + feed := rss.New(timeout, true, chanHandler, itemHandler) + + for { + if err := feed.Fetch(uri, nil); err != nil { + fmt.Fprintf(os.Stderr, "[e] %s: %s", uri, err) + return + } + + <-time.After(time.Duration(feed.SecondsTillUpdate() * 1e9)) + } +} + +func chanHandler(feed *rss.Feed, newchannels []*rss.Channel) { + fmt.Printf("%d new channel(s) in %s\n", len(newchannels), feed.Url) +} + +func itemHandler(feed *rss.Feed, ch *rss.Channel, newitems []*rss.Item) { + fmt.Printf("%d new item(s) in %s\n", len(newitems), feed.Url) +}