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AWS API Gateway Authorizer

This page shows how to write Terraform and CloudFormation for API Gateway Authorizer and write them securely.

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aws_api_gateway_authorizer (Terraform)

The Authorizer in API Gateway can be configured in Terraform with the resource name aws_api_gateway_authorizer. The following sections describe 2 examples of how to use the resource and its parameters.

Example Usage from GitHub

todo_api.tf#L147
resource "aws_api_gateway_authorizer" "createAuth" {
  name = "createAuth"
  type = var.auth_type
  provider_arns = data.aws_cognito_user_pools.userPools.arns
  rest_api_id = aws_api_gateway_rest_api.todolist.id
  authorizer_uri = aws_lambda_function.create_func.invoke_arn
api_authorizer.tf#L1
resource "aws_api_gateway_authorizer" "cognito_user_pool" {
  name            = "api_gateway_authorizer"
  rest_api_id     = aws_api_gateway_rest_api.first_api.id
  identity_source = "method.request.header.Authorization"
  type            = "COGNITO_USER_POOLS"
  provider_arns   = [var.cognito_user_pool_arn]

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Parameters

>> from Terraform Registry

Explanation in Terraform Registry

Provides an API Gateway Authorizer.

>> from Terraform Registry

Tips: Best Practices for The Other AWS API Gateway Resources

In addition to the aws_api_gateway_method_settings, AWS API Gateway has the other resources that should be configured for security reasons. Please check some examples of those resources and precautions.

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aws_api_gateway_method_settings

Ensure that API Gateway stage-level cache is encrypted

It is better to enable the stage-level cache encryption which reduces the risk of data leakage.

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aws_api_gateway_domain_name

Ensure to use modern TLS protocols

It is better to adopt TLS v1.2+.

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aws_api_gateway_stage

Ensure to enable access logging of your API Gateway stage (v1)

It is better to enable the access logging of your API Gateway stage (v1).

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aws_api_gateway_method

Ensure that your API Gateway method blocks unwanted access

It is better that the API Gateway method does not allow public access.

Review your AWS API Gateway settings

In addition to the above, there are other security points you should be aware of making sure that your .tf files are protected in Shisho Cloud.

AWS::ApiGateway::Authorizer (CloudFormation)

The Authorizer in ApiGateway can be configured in CloudFormation with the resource name AWS::ApiGateway::Authorizer. The following sections describe how to use the resource and its parameters.

Example Usage from GitHub

An example could not be found in GitHub.

Parameters

>> from AWS CloudFormation Documentation

Explanation in CloudFormation Registry

The AWS::ApiGateway::Authorizer resource creates an authorization layer that API Gateway activates for methods that have authorization enabled. API Gateway activates the authorizer when a client calls those methods.

>> from AWS CloudFormation Documentation

The Other Related AWS API Gateway Resources

Frequently asked questions

What is AWS API Gateway Authorizer?

AWS API Gateway Authorizer is a resource for API Gateway of Amazon Web Service. Settings can be wrote in Terraform and CloudFormation.

Where can I find the example code for the AWS API Gateway Authorizer?

For Terraform, the abondar24/ServerlessAI and deepakddun/AWSAPIGatewayTerraform source code examples are useful. See the Terraform Example section for further details.

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