How to pass and retrieve constant json data to lambda function

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误落风尘
误落风尘 2021-02-20 06:33

I have lambda function defined sth like :

def lambda_handler(event, context):

   #get constant json argument passed from cloudwatch event rule

   ...
         


        
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  • 2021-02-20 07:17

    As I read in AWS documents, json passed to python as dict type. And then I simply call the value like this:

    passed json:

    {"type": "daily", "retention": 7}
    

    Then in your handler:

    def lambda_handler(event, context):
        type = event["type"]
        rententionDay = event["retention"]
        ...
    

    Use this I was able to make an automation snapshot for all ebs volumes. Hope it help.

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  • 2021-02-20 07:19

    This is based on NodeJS, but it should be the same for Python. The Constant under Input is a simple JSON encoded object, which can then be accessed using the event variable.

    Input

    { "config": "uk" }
    

    Lambda

    console.log(event.config)
    

    Found this entry as one of the top Google results, so hopefully this will help someone else.

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