MITLibraries / archival-packaging-tool / 14974771145

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main: 96%

Pull #21

github

Scaffold HTTP based lambda and SAM testing

Why these changes are being introduced:

The APT Lambda will primarily be invoked via an HTTP request payload,
e.g. from an ALB, Function URL, or API Gateway.  As such, it needs
some handling for parsing the request payload (event) and returning
a response that will be translated into an HTTP response.

How this addresses that need:

Similar to other lambda projects, a couple of helper methods are
add generate_result_response() and generate_error_response() that
are used to return the lambda response.

Additionally, AWS SAM infrastructure has been added to allow
for testing the lambda locally by sending HTTP requests as if
the deployed lambda were receiving events from an HTTP invocation.

At this time, only a single action 'ping' is supported by the
lambda.

Side effects of this change:
* Lambda can parse HTTP invocations and return valid HTTP
responses

Relevant ticket(s):
* https://mitlibraries.atlassian.net/browse/IN-1215

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