After learning that Yahoo Pipes introduced a new module called YQL (Yahoo Query Language) last week, I knew that I had to find a way to work it into one of my 2 minute videos. YQL uses an SQL-like syntax for more powerful and flexible inputs into Yahoo Pipes; however, working it into a 2 minute demo was quite challenging, since queries can be complicated. I cheated a little by glossing over the query language and focusing on how to use YQL effectively within Pipes. Honestly, I’m never going to teach someone to use an SQL syntax without extensive training, so this 2 minute demo is really geared toward people with database experience or programming backgrounds. I also did a more complicated version of this pipe with a more extensive explanation that you might be interested in reading to get more details about using YQL within Pipes.
- The Demo Pipe. A copy of the YQL: 2 Minute Yahoo Pipes Demo pipe click “View Source” to see the modules.
- YQL. The query:
select * from flickr.photos.info(20) where photo_id in (select id from flickr.photos.search(20) where tags = “igniteportland”).
Selects 20 photos from Flickr with the tag “igniteportland”. flickr.photos.search is used to find the images, but it doesn’t provide much information about the images, so I ran it through flickr.photos.info to pull in more data. If you omit the (20), YQL returns 10 results by default, and you can set this number to something appropriate for your needs.
- Rename. Maps item.urls.url.content into the more standard item.link, which is recognized by RSS readers and the Yahoo Pipes output for clickable links back to the original content.
- Pipe Output. The final module in every Yahoo Pipe.
I’ve created many Yahoo Pipes, and most of them have been published on my Yahoo Pipes and RSS Hacks page where you can also learn more about my Yahoo Pipes Training courses.
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One thought on “YQL (Yahoo Query Language): 2 Minute Yahoo Pipes Video Demo”
Great video! why is different from just grabing rss feeds from flickr and just filter them as yo like?
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