Understanding Google’s APIs
As noted, API is a synonym for Application Programming Interface. As the name implies, this is an interface used in the programming of applications. More precisely, a Google API is an interface between the application you develop and a specific Google service.
Note
To use any of Google’s APIs, you must first register on the Google Code site (code.google.com). When you create your Google API account, Google issues you a personal license key; this license key must be integrated into your code so that every time your application queries a Google database, the license key is part of the query string.
For example, the Google Custom Search API lets you tie into Google’s main search index. That lets you add web ...
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