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  • // Extracts the function name out of an AWS Lambda Function ARN
    const arnComponents = stack.parseArn(arn, ":");
    const functionName = arnComponents.resourceName;
    
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    0
  • // Builds "arn::lambda:::function:MyFunction"
    stack.formatArn({
      service: "lambda",
      resource: "function",
      sep: ":",
      resourceName: "MyFunction",
    });
    
    Docs
    0
  • import { App, Stack } from "aws-cdk-lib";
    import { Bucket } from "aws-cdk-lib/aws-s3";
    
    const app = new App();
    const stack = new Stack(app, "TestStack");
    
    new Bucket(stack, "TestBucket");
    
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    0
  • import { Stack, App, aws_s3 as s3 } from "aws-cdk-lib";
    
    const app = new App();
    const stack = new Stack(app, "TestStack");
    
    new s3.Bucket(stack, "TestBucket");
    
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    0
  • const stack = new Stack(app, "StackName", {
      terminationProtection: true,
    });
    
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    0
  • const stack = new Stack(app, "StackName");
    
    stack.templateOptions.description =
      "This will appear in the AWS console";
    stack.templateOptions.transforms = [
      "AWS::Serverless-2016-10-31",
    ];
    stack.templateOptions.metadata = {
      metadataKey: "MetadataValue",
    };
    
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    0
  • function getOrCreate(scope: Construct): sns.Topic {
      const stack = Stack.of(scope);
      const uniqueid = "GloballyUniqueIdForSingleton"; // For example, a UUID from `uuidgen`
      return (
        (stack.node.tryFindChild(uniqueid) as sns.Topic) ??
        new sns.Topic(stack, uniqueid)
      );
    }
    
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    0
  • // "this" is the current construct
    const stack = Stack.of(this);
    
    stack.account; // Returns the AWS::AccountId for this stack (or the literal value if known)
    stack.region; // Returns the AWS::Region for this stack (or the literal value if known)
    stack.partition;
    
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    0
  • class MyNestedStack extends cfn.NestedStack {
      constructor(
        scope: Construct,
        id: string,
        props?: cfn.NestedStackProps
      ) {
        super(scope, id, props);
    
        new s3.Bucket(this, "NestedBucket");
      }
    }
    
    class MyParentStack extends Stack {
      constructor(
        scope: Construct,
        id: string,
        props?: StackProps
      ) {
        super(scope, id, props);
    
        new MyNestedStack(this, "Nested1");
        new MyNestedStack(this, "Nested2");
      }
    }
    
    Docs
    0
  • import { Stack, App, aws_s3 as s3 } from "aws-cdk-lib";
    
    const app = new App();
    const stack = new Stack(app, "TestStack");
    
    new s3.Bucket(stack, "TestBucket");
    
    Docs
    0
  • const environmentParameter = new CfnParameter(
      this,
      "Environment"
    );
    const isProd = new CfnCondition(this, "IsProduction", {
      expression: Fn.conditionEquals(
        "Production",
        environmentParameter
      ),
    });
    
    // Configuration value that is a different string based on IsProduction
    const stage = Fn.conditionIf(
      isProd.logicalId,
      "Beta",
      "Prod"
    ).toString();
    
    // Make Bucket creation condition to IsProduction by accessing
    // and overriding the CloudFormation resource
    const bucket = new s3.Bucket(this, "Bucket");
    const cfnBucket = myBucket.node
      .defaultChild as s3.CfnBucket;
    cfnBucket.cfnOptions.condition = isProd;
    
    Docs
    0
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