# Is it possible to implement the AWS\_IAM authorizer mechanism in my lambda authorizer?

**URL:** <https://forum.serverless.com/t/is-it-possible-to-implement-the-aws-iam-authorizer-mechanism-in-my-lambda-authorizer/16516>\
**Category:** Serverless Framework\
**Tags:** aws, lambda, api-gateway\
**Created:** [January 10, 2022, 8:24am UTC](https://forum.serverless.com/t/is-it-possible-to-implement-the-aws-iam-authorizer-mechanism-in-my-lambda-authorizer/16516 "2022-01-10T08:24:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Guy7B](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.serverless.com/guy7b/32/6255_2.png) [@Guy7B](https://forum.serverless.com/u/Guy7B)\
**Post date:** [January 10, 2022, 8:24am UTC](https://forum.serverless.com/t/is-it-possible-to-implement-the-aws-iam-authorizer-mechanism-in-my-lambda-authorizer/16516/1 "2022-01-10T08:24:25Z")

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I have an endpoint “/users” called from another lambda through API Gateway and from the frontend.

I am trying to figure out how to use the same lambda authorizer to authenticate requests from the frontend that uses JWT and requests from an internal service (another lambda) that uses sig4.