api-lambda-save-dynamodb-stack.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const cdk = require("@aws-cdk/cdk");
const aws_sam_1 = require("@aws-cdk/aws-sam");
const aws_lambda_1 = require("@aws-cdk/aws-lambda");
const aws_dynamodb_1 = require("@aws-cdk/aws-dynamodb");
//import { RestApi, LambdaIntegration, IResource, MockIntegration, PassthroughBehavior } from '@aws-cdk/aws-apigateway';
class ApiLambdaSaveDynamoDBStack extends cdk.Stack {
    constructor(scope, id, props) {
        super(scope, id, props);
        const tableName = 'twitchViewers';
        const primaryKeyName = 'viewerId';
        const table = new aws_dynamodb_1.Table(this, 'viewers-table', {
            tableName: tableName,
            partitionKey: {
                name: primaryKeyName,
                type: aws_dynamodb_1.AttributeType.String
            },
            billingMode: aws_dynamodb_1.BillingMode.PayPerRequest
        });
        const api = new aws_sam_1.CfnApi(this, 'viewersApi', {
            stageName: 'prod',
            cors: '"*"'
        });
        new aws_sam_1.CfnFunction(this, 'SaveToDynamoDB', {
            codeUri: new aws_lambda_1.AssetCode('src').path,
            handler: 'index.handler',
            runtime: 'nodejs8.10',
            environment: {
                variables: {
                    TABLE_NAME: table.tableName,
                    PRIMARY_KEY: primaryKeyName
                }
            },
            policies: `
        - DynamoDBCrudPolicy:
            TableName: ${tableName}`,
            events: {
                save: {
                    type: 'Api',
                    properties: {
                        path: '/viewers',
                        method: 'POST',
                        restApiId: api.logicalId
                    }
                },
                saveOptions: {
                    type: 'Api',
                    properties: {
                        path: '/viewers',
                        method: 'OPTIONS',
                        restApiId: api.logicalId
                    }
                }
            }
        });
    }
}
exports.ApiLambdaSaveDynamoDBStack = ApiLambdaSaveDynamoDBStack;
/*function addCorsOptions(apiResource: IResource) {
  apiResource.addMethod('OPTIONS', new MockIntegration({
    integrationResponses: [{
      statusCode: '200',
      responseParameters: {
        'method.response.header.Access-Control-Allow-Headers': "'ContentType,X-Amz-Date,Authorization,X-Api-Key,X-Amz-Security-Token,X-Amz-User-Agent'",
        'method.response.header.Access-Control-Allow-Origin': "'*'",
        'method.response.header.Access-Control-Allow-Credentials': "'false'",
        'method.response.header.Access-Control-Allow-Methods': "'OPTIONS,POST,PUT'",
      }
    }],
    passthroughBehavior: PassthroughBehavior.Never,
    requestTemplates: {
      "application/json": "{\"statusCode\":200}"
    }
  }), {
      methodResponses: [{
        statusCode: '200',
        responseParameters: {
          'method.response.header.Access-Control-Allow-Headers': true,
          'method.response.header.Access-Control-Allow-Origin': true,
          'method.response.header.Access-Control-Allow-Credentials': true,
          'method.response.header.Access-Control-Allow-Methods': true,
        }
      }]
    });
}*/ 
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