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  • const rawBucket = new s3.CfnBucket(this, "Bucket", {
      /* ... */
    });
    // -or-
    const rawBucketAlt = myBucket.node
      .defaultChild as s3.CfnBucket;
    
    // then
    rawBucket.cfnOptions.condition = new CfnCondition(
      this,
      "EnableBucket",
      {
        /* ... */
      }
    );
    rawBucket.cfnOptions.metadata = {
      metadataKey: "MetadataValue",
    };
    
    Docs
    0
  • import { SubscriptionClient } from "subscriptions-transport-ws";
    import ApolloClient from "apollo-client";
    
    const GRAPHQL_ENDPOINT = "ws://localhost:3000/graphql";
    
    const client = new SubscriptionClient(GRAPHQL_ENDPOINT, {
      reconnect: true,
    });
    
    const apolloClient = new ApolloClient({
      networkInterface: client,
    });
    
    Docs
    0
  • import {
      SubscriptionClient,
      addGraphQLSubscriptions,
    } from "subscriptions-transport-ws";
    import ApolloClient, {
      createNetworkInterface,
    } from "apollo-client";
    
    // Create regular NetworkInterface by using apollo-client's API:
    const networkInterface = createNetworkInterface({
      uri: "http://localhost:3000", // Your GraphQL endpoint
    });
    
    // Create WebSocket client
    const wsClient = new SubscriptionClient(
      `ws://localhost:5000/`,
      {
        reconnect: true,
        connectionParams: {
          // Pass any arguments you want for initialization
        },
      }
    );
    
    // Extend the network interface with the WebSocket
    const networkInterfaceWithSubscriptions =
      addGraphQLSubscriptions(networkInterface, wsClient);
    
    // Finally, create your ApolloClient instance with the modified network interface
    const apolloClient = new ApolloClient({
      networkInterface: networkInterfaceWithSubscriptions,
    });
    
    Docs
    0
  • // Extracts the function name out of an AWS Lambda Function ARN
    const arnComponents = stack.parseArn(arn, ":");
    const functionName = arnComponents.resourceName;
    
    Docs
    0
  • // Builds "arn::lambda:::function:MyFunction"
    stack.formatArn({
      service: "lambda",
      resource: "function",
      sep: ":",
      resourceName: "MyFunction",
    });
    
    Docs
    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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