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Editorial Team
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Asked: 2026-05-27T17:35:53+00:00

I am used to consuming Web services via a XMLHttpRequest, to retrieve xml or

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I am used to consuming Web services via a XMLHttpRequest, to retrieve xml or JSON.

Recently, I have been working with SharePoint REST services, which can return a single value (for example 5532, or “Jeff”). I am wondering if there is a more efficient way than XMLHttpRequest to retrieve this single value. For example, would it work if I loaded the REST url via an iframe, then retrieved the iframe content? Or is there any other well established method?

[Edit] By single value, I really mean that the service just returns these characters. This is not even presented in a JSON or xml response.

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  1. Editorial Team

    Any inefficiency in XMLHttpRequest is largely due to the overhead of HTTP, which the iframe approach is going to incur, as well. Furthermore, if the Sharepoint service expects to speak HTTP, you’re going to need to speak HTTP. However, an API does not have to run over HTTP to be RESTful, per Roy Fielding, so if the service provided an API over a raw socket — or if you simply wanted to craft your own slimmer HTTP request — you could use a Flash socket via a library like: http://code.google.com/p/javascript-as3-socket/. You could cut the request message size down to under 100 bytes, and could pull out the response data trivially.

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