>API Keys for Ajax Services

Dietrich Kappe, Monday, August 6, 2007 @ 5:35 am

I'm sure not everyone is developing Ajax-based front end sites and applications. There must be someone who is developing XML, JSON and JSONP web services, right? So, if you are going to offer it as a commercial service, and even if you aren't, you still want to be able to control and measure access to it. Something like those Google and Yahoo service API keys, right? I'm sure we've all worked with MD5 and SHA-1 enough to have some ideas about how that would be done, but it helps to have an example to follow.

Well, check out this article over at java.net: Creating and Using API Keys with Java Based Ajax Services. It demonstrates the client and server side pieces to using an API key. Lots of code, and shows how to generate the key from the client web site address and a secret service token. (Note: the example relies on the now outmoded MD5 to generate the token, but that could easily be switched to SHA-1 or some other one-way hash.)

Technorati Tags: ajax, json, jsonp, api key

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