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Bringing more context to Gmail contextual gadgets
May 31, 2011
As part of the launch of Gmail contextual gadgets, Google released a set of predefined extractors that developers could use. These extractors allow developers to match content within a single part of an email message, such as the subject, and use that content to display relevant information to the current user.
Many Gmail contextual gadget developers have expressed a desire to match on more complex patterns than is possible with the predefined extractors. Today, with the
launch
of the
Google Apps extensions console
, these complex patterns, known as
custom extractors
, are now available to drive contextual gadgets.
Custom extractors allow developers to trigger their gadget when a series of conditions are met. For example, a developer could write an extractor that triggered a gadget only when “Hello world” appeared in the subject and “john@example.com” was the sender of the email. This allows developers to more finely tune their gadgets, and provide even more relevant contextual information.
If you’re interested in writing a custom extractor you can get started by reading our
documentation
. If you have questions, please post them in the
forum
.
Dan Holevoet, Google Developer Team
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