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Request Validator In AWS API Gateway

In this article, we will discuss the request validator in AWS API Gateway.

Purpose

The request validator performs the basic validation on the API request before proceeding with the integration request.

For adding the query string parameter, click on the Method Request of the Get method.

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Click on the Add query string button to add the new query string. For this article, I have added the title.

If you edit the Request Validator, there are three values.

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Select the option Validate query string parameters and headers.

Now deploy the API and check the URL without query string. You will get the following error.

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Now, add the query string parameter and try again. There will be no error.

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