yql - 雅虎财经有多可靠？

Question

雅虎财经有多可靠？

例如下面的请求: http://developer.yahoo.com/yql/console/?q=show%20tables&env=store://datatables.org/alltableswithkeys#h=select%20 *%20from%20yahoo.finance.quotes%20where%20symbol%20in%20%28%22YHOO%22%2C%22AAPL%22%2C%22GOOG%22%2C%22MSFT%22%29

间歇性地返回响应:“当前表 'yahoo.finance.quotes' 已被阻止。它超出了分配的时间或指令配额”

完整回复如下:

<?xml version="1.0" encoding="UTF-8"?>
<query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng"
    yahoo:count="0" yahoo:created="2013-04-08T11:16:18Z" yahoo:lang="en-US">
    <diagnostics>
        <publiclyCallable>true</publiclyCallable>
        <url execution-start-time="24" execution-stop-time="25"
            execution-time="1" proxy="DEFAULT"><![CDATA[http://www.datatables.org/yahoo/finance/yahoo.finance.quotes.xml]]></url>
        <cache execution-start-time="27" execution-stop-time="27"
            execution-time="0" method="GET" type="MEMCACHED"><![CDATA[13c4f8eac77ad886bade5a711c8c1ef5]]></cache>
        <javascript name="yahoo.finance.quotes" verb="select"><![CDATA[The current table 'yahoo.finance.quotes' has been blocked. It exceeded the allotted quotas of either time or instructions]]></javascript>
        <user-time>28</user-time>
        <service-time>1</service-time>
        <build-version>35405</build-version>
    </diagnostics> 
    <results/>
</query>

要获得可靠的服务，我需要注册并付款吗？

Answer 1

To get a reliable service do I need to sign up and pay ?

限制如下:

                    Public  OAuth with API Key
Hourly Cap          2,000   20,000
Daily Cap           None    100,000

To better understand the rate limits in the above table, let's use the following example. Suppose you create an application that generates around 3,000 requests from each user per hour. You notice though that users are capped at a maximum of 2,000 calls using the public endpoint, so you register an API Key with Yahoo! to use the authenticated/authorized endpoint. Now your users can make 20,000 requests per hour and up to a total of 100,000 requests per day.

oAuth 是 free .

引用资料

• YQL Overview - Yahoo Developer Network

• Public API Down Detector