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I need to include the request time in the body mapping template for an API Gateway method. Is there a date/time variable or function? I couldn't find anything in the template reference.
Example body mapping template:
Action=SendMessage&MessageBody=$util.urlEncode("{""timestamp"":""TIMESTAMP_HERE"",""body-json"":$input.json('$'),""params"":""$input.params()""}")
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You must define the model in order to have API Gateway to generate a SDK or to enable basic request validation for your API. You don't have to define any model to create a mapping template. However, a model can help you create a template because API Gateway will generate a template blueprint based on a provided model.
Navigate to the API Gateway console, choose the StoreFront API and open the GET method of the /orders resource. On the Method Execution details page, choose Integration Response. Expand the default response mapping (HTTP status 200), and expand the Mapping Templates section. Choose Add Mapping Template.
API Gateway uses Velocity Template Language (VTL) engine to process body mapping templates for the integration request and integration response.
UPDATE: API Gateway just added two new context variables http://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html
$context.requestTime The CLF-formatted request time (dd/MMM/yyyy:HH:mm:ss +-hhmm).
$context.requestTimeEpoch The Epoch-formatted request time.
API gateway doesn't support this currently. Its been requested before on the forums - https://forums.aws.amazon.com/thread.jspa?messageID=697658&. We have this feature in our backlog, but unfortunately I can't commit to any timelines.
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