How can I make API gateway only available to my ec2 instance?

Joey Yi Zhao

I deployed a lambda to AWS and created an api gateway to access it. I don't want the API gateway to be public because the lambda is only called from one of my ec2 instance. What is the best way to configure it to secure this API? My ec2 instance needs public IP address since I have DNS configure route pointing to it.

John Rotenstein

Since you are only using the AWS Lambda function from a single Amazon EC2 instance, there is no need to use API Gateway. (API Gateway is normally used to expose an API to a large number of users.)

You can instead invoke an AWS Lambda function directly:

You can use the AWS Command-Line Interface (CLI) by calling aws lambda invoke
You can also use an AWS SDK from a programming language such as Python, Java and Node.js

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edited at2020-12-6

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How can I make API gateway only available to my ec2 instance?

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