finding the route table ID using TypeScript in AWS CDK

   // New NAT gateway creation 
   const natGateway = new ec2.CfnNatGateway(this, 'nat-gateway-1',{
      subnetId: mySubnet.subnetId,
      allocationId: new ec2.CfnEIP(this, 'eip-1', {
        domain: 'vpc'
      }).attrAllocationId
    })
    // Route table instantiation
    const routeTable = new ec2.CfnRouteTable(this, 'route-table-1', {
      vpcId: vpc.vpcId,
    })
    // Setting up a route
    const route = new ec2.CfnRoute(this, 'route-1', {
      // How do I obtain the ID for the route table?
      routeTableId: 'obtaining the id?',
      natGatewayId: 'how do I retrieve the id?',
      destinationCidrBlock: vpc.vpcCidrBlock
    })

Working with TypeScript, how can I acquire the ID when creating a route table or NAT gateway?

typescriptamazon-web-servicesaws-cdk

Answer №1

When using the !Ref function on a NatGateway resource, it provides the NatGatewayId

Similarly, !Ref on RouteTable resource gives the routeTableId

All that is needed is routeTable.ref and natGateway.ref to obtain the routeTableId and natGatewayId.

const natGateway = new ec2.CfnNatGateway(this, "nat-gateway-1", {
  subnetId: mySubnet.ref,
  allocationId: new ec2.CfnEIP(this, "eip-1", {
    domain: "vpc",
  }).attrAllocationId,
});

// create a route table
const routeTable = new ec2.CfnRouteTable(this, "route-table-1", {
  vpcId: this.vpc.ref,
});

// create route
const route = new ec2.CfnRoute(this, "route-1", {
  // how do we get the route table id?
  routeTableId: routeTable.ref,
  natGatewayId: natGateway.ref,
  destinationCidrBlock: "0.0.0.0/0",
});

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