Thanks Matt!

the trends.api.twitter.com server is working great.

Question : what are the Rate Limit restrictions against that server?

I am being very careful to respect the "as_of" time stamp for last
request against a specific WOEID, but give 42 locations (the world
plus 41 counties and cities) at present, and a 5 minutes refresh rate
I expect 20 (60 minutes / 5 ) * 42 woeid point = 840 request per
hour.  and more when more trend locations are added (I'm also
interested in the hourly and daily trend data, but that is minor from
a volume perspective)

(It does look like I'm okay, but figures crossed)

so what is the hard limit currently?

Feed back :

Please note that neither the documentation (http://dev.twitter.com/doc/
get/trends/:woeid)  or the Twitter API Announcements about "using the
correct API and host" (http://groups.google.com/group/twitter-api-
announce/browse_thread/thread/46ca6fcb9ea7eb49/34b013f4d092737f?
show_docid=34b013f4d092737f)   mention new trends.api.twitter.com end
point.

also their are two undocumented fields in the "GET trends" results :
"promoted_content" - I can guess what that is for, but so far it's
always been null
and
"events" - so far always null

with respect to the "Trends available.json"

the documentation is a little out of date (parentid)
The results from  are good after your initial problems when you rolled
out all the new location and got the parentid wrong in a couple of
cases.  (I think you had San Fran in Brazil : )

Ian
False Positives : Code and Culture :http://www.FalsePositives.com
Connected Thinking : Building the People and Data Driven Web
http://www.ConnectedThinking.com
Twendr : Your Global Twitter Dashboard : What's happening Now!
http://www.Twendr.com

On Feb 10, 8:40 pm, Matt Harris <thematthar...@twitter.com> wrote:
> Hi Ian,
>
> For trends you might like to try our trends.api.twitter.com server which
> hosts a cached copy of the trends information and is updated whenever the
> trends change. It should support your use case and we would be interested in
> any feedback you may have about it's performance.
>
> To use it just map the api.twitter.com trends request onto the
> trends.api.twitter.com domain name, for example:
>    http://api.twitter.com/1/trends/available.json
> becomes:
>    http://trends.api.twitter.com/1/trends/available.json
>
> and:
>    http://api.twitter.com/1/trends/1.json
> becomes:
>    http://trends.api.twitter.com/1/trends/1.json
>
> Best,
> @themattharris
> Developer Advocate, Twitterhttp://twitter.com/themattharris
>
> On Thu, Feb 10, 2011 at 4:07 PM, Ian Irving <ian.irv...@gmail.com> wrote:
> > Well this is disappointing.
>
> > 350 is not 20,000.
>
> > I have one little twitter app (using the trends api) and I need around
> > 800 requests per hour to get the data.
>
> > This and a few other ideas I had just died.  These are all small side
> > projects with limited opportunities for monetization or funding.  The
> > 20k white listing meant I could build proof of concepts to show skills
> > or judge interest.
>
> > very disappointing. :(
>
> > Ian
> >http://twendr.com
>
> > On Feb 10, 4:43 pm, Ryan Sarver <rsar...@twitter.com> wrote:
> > > Beginning today, Twitter will no longer grant whitelisting requests.
> > > We will continue to allow whitelisting privileges for previously
> > > approved applications; however any unanswered requests recently
> > > submitted to Twitter will not be granted whitelist access.
>
> > > Twitter whitelisting was originally created as a way to allow
> > > developers to request large amounts of data through the REST API. It
> > > provided developers with an increase from 150 to 20,000 requests per
> > > hour, at a time when the API had few bulk request options and the
> > > Streaming API was not yet available.
>
> > > Since then, we've added new, more efficient tools for developers,
> > > including lookups, ID lists, authentication and the Streaming API.
> > > Instead of whitelisting, developers can use these tools to create
> > > applications and integrate with the Twitter platform.
>
> > > As always, we are committed to fostering an ecosystem that delivers
> > > value to Twitter users. Access to Twitter APIs scales as an
> > > application grows its userbase.  With authentication, an application
> > > can make 350 GET requests on a user’s behalf every hour. This means
> > > that for every user of your service, you can request their timelines,
> > > followers, friends, lists and saved searches up to 350 times per hour.
> > > Actions such as Tweeting, Favoriting, Retweeting and Following do not
> > > count towards this 350 limit. Using authentication on every request is
> > > recommended, so that you are not affected by other developers who
> > > share an IP address with you.
>
> > > We also want to acknowledge that there are going to be some things
> > > that developers want to do that just aren’t supported by the platform.
> > > Rather than granting additional privileges to accommodate those
> > > requests, we encourage developers to focus on what's possible within
> > > the rich variety of integration options already provided. Developers
> > > interested in elevated access to the Twitter stream for the purpose of
> > > research or analytics can contact our partner Gnip for more
> > > information.
>
> > > As always, we are here to answer questions, and help you build
> > > applications and services that offer value to users.
>
> > > Ryan
>
> > > --
> > > Ryan Sarver
> > > @rsarver
>
> > --
> > Twitter developer documentation and resources:http://dev.twitter.com/doc
> > API updates via Twitter:http://twitter.com/twitterapi
> > Issues/Enhancements Tracker:
> >http://code.google.com/p/twitter-api/issues/list
> > Change your membership to this group:
> >http://groups.google.com/group/twitter-development-talk

-- 
Twitter developer documentation and resources: http://dev.twitter.com/doc
API updates via Twitter: http://twitter.com/twitterapi
Issues/Enhancements Tracker: http://code.google.com/p/twitter-api/issues/list
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