Example of API key protected AWS API

gistfile1.txt

import * as cdk from 'aws-cdk-lib';
import { Construct } from 'constructs';

import { aws_lambda_nodejs, aws_apigateway } from 'aws-cdk-lib'
import * as path from "path";

export class AwsCdkExampleStack extends cdk.Stack {
  constructor(scope: Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    const test_lambda = new aws_lambda_nodejs.NodejsFunction(this, 'test-lambda', {
      entry: path.join(
        __dirname,
        `./functions/test_lambda/index.ts`
      ), // accepts .js, .jsx, .cjs, .mjs, .ts, .tsx, .cts and .mts files
      handler: 'handler', // defaults to 'handler'
    });

    const api_gateway = new aws_apigateway.RestApi(this, `my-api_gateway`);

    const test_api_resource = api_gateway.root.addResource('test');

    test_api_resource.addMethod('GET', new aws_apigateway.LambdaIntegration(test_lambda), {
      apiKeyRequired: true,
      // authorizationType: aws_apigateway.AuthorizationType.IAM,
      requestParameters: {
        'method.request.header.x-api-key': true,
      },
    });

    const usagePlan = api_gateway.addUsagePlan('UsagePlan', {
      name: 'UsagePlan',
      // throttle: {
      //     rateLimit: 100,
      //     burstLimit: 200,
      // },
    });

    usagePlan.addApiStage({ stage: api_gateway.deploymentStage })
  }
}