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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | 1x 1x 2x 2x 2x 2x 2x 2x 2x | import * as sns from '@aws-cdk/aws-sns'; import * as cdk from '@aws-cdk/core'; import {GenericRestApiAwsIntegration, GenericRestApiAwsIntegrationProps} from "./generic-rest-api-aws-integration" /** * Integrates an SNS Topic with ApiGateway(RestApi) by publishing Topic messages on http request */ export interface SnsRestApiIntegrationProps extends GenericRestApiAwsIntegrationProps { /** * The target SNS Topic to which messages will be published by the RestApi Integration */ topic: sns.Topic; /** * Integration request mapping templates * * reference: https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html * * @default {"application/json": "Action=Publish&TopicArn=$util.urlEncode('" + props.topic.topicArn + "')&Message=$util.urlEncode($input.body)"} */ requestTemplates?: { [contentType: string]: string; }; } export class SnsRestApiIntegration extends GenericRestApiAwsIntegration { constructor(scope: cdk.Construct, id: string, props: SnsRestApiIntegrationProps) { super(scope, id, props); } init(id: string, props: SnsRestApiIntegrationProps) : void { this.requestTemplates = props.requestTemplates || {"application/json": "Action=Publish&TopicArn=$util.urlEncode('" + props.topic.topicArn + "')&Message=$util.urlEncode($input.body)"} this.successResponseTemplates["application/json"] = "{\"status\":\"message received\", \"messageId\": $input.json('PublishResponse.PublishResult.MessageId')}" this.failureResponseTemplates["application/json"] = "{\"status\":\"failed to process message\")}" this.integrationPath="/" this.awsService = "sns" } configureAwsService(id: string, props: SnsRestApiIntegrationProps): void { props.topic.grantPublish(this.integrationRole) } } |