I tried passing the query string and path parameters from API gateway to lambda

Introduction

Hemanth of Alliance Department here. In this blog, I tried passing the query string and path parameters from API gateway to lambda.

AWS Lambda

A serverless compute service that runs code as a reply to events and automatically takes care of the bottom resources. It runs code on high availability compute infrastructure and performs all the administration of the compute resources. A few examples are HTTP requests vis Amazon API Gateway, changes to objects in S3, and many others.

API Gateway

A fully managed service that makes developers easily create, publish, maintain, monitor, and secure APIs at any scale. Using API Gateway can create Restful APIs and WebSocket APIs which have real-time two-way communication applications. It is a front door for applications to access data, business logic, or functionality from your backend services.

Demo

Go to lambda and click on create function Type function name and click on create function Making changes to code, here i want to receive a greeting message in query string and click on deploy Now let's test it by clicking on test, then configure test and making the following changes, finally click on save clicking on the created test working as expected Now configuring the test event and making changes to greeting, name and click save Testing again Now open the API gateway and click on build RestAPI click on new api, give an API name and click on create API Now click on slash next option and then resource Make following changes and click on resource select name, actions and select create method select get and make the following changes select the integration request Make the following change and click save Now deploying the API Select new stage and click deploy In resources click on test Entering path, query strings and clicking on test Getting the expected outcome

Conclusion

Hope with this you get an idea of how to pass the query string and path parameters from API gateway to lambda. Thank you for seeing the blog till the end.