How to access the URL that invoked my Lambda Function?

Question

I'm using a Serverless framework that uses API Gateway to deploy my lambda functions. The frontend is already deployed and they were using the following URL to call an endpoint:

example.com/api/EG43

`exports.myHandler = async function(event, context) {

        ...

        // somehow access the URL which was used by the frontend 

        // to grab that EG43 and then return the result based on that key.

        // return information to the caller.  

 }

where "EG43" is a key that the previous backend was returning the result based on that key. So my question is, whether it's possible to know what the URL is?

Answer 1

There are 2 ways in which you can access these details:

1st: You can set up a mapping template and pass in the details you need as part of the payload. You can read more here.

2nd: You can even set up the lambda in Proxy Integration mode, with this you have access to the raw request. You can read it here.

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