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The resilience of these works is provided by a combination of the features of Amazon's SQS, Elastic Beanstalk, and Quartz.
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Repository Layers
Each repository services is composed of at least four distinct layers:
Authentication Filter
The Authentication filter is a servlet filter that is applied to most repository service URLs. The filters only function is to authenticate the caller. There are several mechanism with which a user may authenticate including a Session Token added to the header of the request or signing the request using their API key.