Getting the error:

Error: There is already a Construct with name 'SingersApi' in SingersStack [dev-karaoke-singers]

in the following sst/cdk Stack class:

import { RemovalPolicy } from '@aws-cdk/core';
import * as sst from '@serverless-stack/resources';

export default class SingersStack extends sst.Stack {
    constructor(scope: <http://sst.App|sst.App>, id: string, props?: sst.StackProps) {
        super(scope, id, props);

        const singersTable = new sst.Table(this, "singers", {
            fields: {
                singer_id: sst.TableFieldType.STRING,
            },
            primaryIndex: { partitionKey: 'singer_id'},
            dynamodbTable: {
                removalPolicy: RemovalPolicy.DESTROY
            }
        });

        const singersApi = new sst.Api(this, 'SingersApi', {
            defaultFunctionProps: {
                environment: {
                    singersTable: singersTable.dynamodbTable.tableName,
                },
            },
        });

        singersApi.addRoutes(this, {
            'POST /karaoke/singers': 'src/services/singers/functions/KAR_SNG_create_singer.handler',
            'GET /karaoke/singers/{singerId}': 'src/services/singers/functions/KAR_SNG_get_singer.handler',
            'GET /karaoke/singers': 'src/services/singers/functions/KAR_SNG_get_all_singers.handler',
            'PUT /karaoke/singers/{singerId}': 'src/services/singers/functions/KAR_SNG_update_singer.handler',
            'DELETE /karaoke/singers/{singerId}': 'src/services/singers/functions/KAR_SNG_delete_singer.handler', 
        });

        singersApi.attachPermissions([singersTable]);

        this.addOutputs({
            'SingersApi': {
                value: singersApi.url,
                exportName: scope.logicalPrefixedName('SingersApi'),
            }
        });
    }
}

It seems having 'SingersApi' in both

const singersApi = new sst.Api(this, 'SingersApi', {

and

this.addOutputs({
            'SingersApi': {
                value: singersApi.url,
                exportName: scope.logicalPrefixedName('SingersApi'),
            }
        });

is a no-go. These seem like similar, yet different context meanings of the api parameter. The later is the Key and ExportName in CFN. But what is the same parameter in the

sst.Api

constructor?

Hey @Luke Wyman, it’s the way CDK is structured. Both the Api and the CFN output are direct children of the Stack. And CDK enforces all children have different IDs.

yeah, key and export name can be the same, but you can't have two keys be the same, right?

Yeah, it’s how CDK builds it’s stack “tree”.

got it. much appreciated 🙂

This is before things get translated to CFN resources.