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4 messages in com.googlegroups.google-finance-apisRe: Usage amount limits?| From | Sent On | Attachments |
|---|---|---|
| Belgarath | Jul 13, 2008 3:30 pm | |
| Dion Loy (Google) | Jul 14, 2008 9:33 am | |
| Belgarath | Jul 14, 2008 12:27 pm | |
| Dion Loy (Google) | Jul 14, 2008 2:16 pm |
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| Subject: | Re: Usage amount limits? | Actions... |
|---|---|---|
| From: | Dion Loy (Google) (dloy...@google.com) | |
| Date: | Jul 14, 2008 2:16:33 pm | |
| List: | com.googlegroups.google-finance-apis | |
Is this just an application for your own use, or for redistribution to any number of users ? What I'm trying to understand here is if it's just 1 / second request from your own portfolio (and by your own personal portfolio, I'm assuming a few hundred symbols tops?).
If you're building a market scanner that will continuously scan over the entire exchange of stocks for multiple users, that's where we may find usage limit issues.
Keep in mind that the portfolio API is not meant as a market data download mechanism (we do not directly provide stock quote data in the API). Its intended use is to store and retrieve user portfolio information, and not as a global market download/scanner.
If you can provide more details as to the usage, I can clarify the expected limits for it.. For example:
1. an application that may be redistributed, automatically setting up all symbols in NASDAQ and NYSE (200 / portfolio across multiple portfolios), hitting us 1 / second for each portfolio will run into quota issues very quickly.
2. an application where users have to add / import their own symbols themselves, hitting us 1 / second.. this should be okay. I would suggest putting a default refresh of less than 1 / second in any case, if you feel you really need 1 / second, make it an option for your users (again, assuming you are building a redistributable app?). And perhaps only doing so, if the user has entered # of shares or a purchase price. We've found that a large number of users just use the portfolios as a 'watchlist', where no shares or purchase price is entered (in which case, hitting 1 / second is a waste as no new data is downloaded).
But in general, I do not see an issue with 1 / second request for one portfolio of 200 symbols (currently the max per portfolio).
On Jul 14, 12:27 pm, Belgarath <dill...@mob.li> wrote:
I am of course talking about Portfolio API as with that you can actual create useful applications.
1 / second is how the stock exchanges works, so creating application that would have slower frequency would not be in sync the actual action frequency - intra-day or not.
so if I do something that's requests data once a second, what would be maximum amount of stocks that this kind of application use? less means less useful analysis.
On Jul 14, 7:34 pm, "Dion Loy (Google)" <dloy+gro...@google.com> wrote:
1 / second seems excessive, and will probably be disallowed, especially if you plan on doing this across thousands of stocks.
Are you talking about the PortfolioAPI, or the iGoogle gadget dataAPI?
On Jul 13, 3:30 pm, Belgarath <dill...@mob.li> wrote:
Hello,
Just wondering are there any usage amount limits of using this API?
This API just calls for retrieving data once a second for thousands of stocks (=max 200/portfolio) even though data is intra-day. Applications using this API has to work on-demand and/or retrieve data once a second.
Is that much of usage allowed? - better ask this before I start coding something that might get kicked out from your service