@faceteer/cdk/constructs/service-queue-function.js

CDK 2.0 constructs and helpers that make composing a Lambda powered service easier.

"use strict";
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        __setModuleDefault(result, mod);
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Object.defineProperty(exports, "__esModule", { value: true });
exports.ServiceQueueFunction = void 0;
const cdk = __importStar(require("aws-cdk-lib"));
const sqs = __importStar(require("aws-cdk-lib/aws-sqs"));
const lambdaEventSources = __importStar(require("aws-cdk-lib/aws-lambda-event-sources"));
const constant_case_1 = require("constant-case");
const base_function_1 = require("./base-function");
class ServiceQueueFunction extends base_function_1.BaseFunction {
    queue;
    dlq;
    queueEnvironmentVariable;
    dlqEnvironmentVariable;
    eventSource;
    constructor(scope, id, props) {
        const { role, defaults, definition } = props;
        super(scope, id, {
            ...props,
            defaults: {
                timeout: 60,
                ...defaults,
            },
            environment: {
                DD_TAGS: `handler_type:queue,handler_name:${definition.name}`,
                ...props.environment,
            },
        });
        const maximumAttempts = definition.maximumAttempts ?? 10;
        this.queueEnvironmentVariable = `QUEUE_${(0, constant_case_1.constantCase)(definition.queueName)}`;
        this.dlqEnvironmentVariable = `DLQ_${(0, constant_case_1.constantCase)(definition.queueName)}`;
        this.dlq = new sqs.Queue(this, `Dlq`, {
            retentionPeriod: cdk.Duration.days(14),
            receiveMessageWaitTime: cdk.Duration.seconds(20),
            visibilityTimeout: this.timeout,
        });
        this.dlq.grantSendMessages(role);
        this.dlq.grantConsumeMessages(role);
        this.queue = new sqs.Queue(this, 'Queue', {
            retentionPeriod: cdk.Duration.days(14),
            receiveMessageWaitTime: cdk.Duration.seconds(20),
            visibilityTimeout: this.timeout,
            deadLetterQueue: {
                maxReceiveCount: maximumAttempts,
                queue: this.dlq,
            },
        });
        this.queue.grantSendMessages(role);
        this.queue.grantConsumeMessages(role);
        this.eventSource = new lambdaEventSources.SqsEventSource(this.queue, {
            batchSize: definition.batchSize,
            maxBatchingWindow: definition.maxBatchingWindow
                ? cdk.Duration.seconds(definition.maxBatchingWindow)
                : undefined,
            reportBatchItemFailures: true,
            maxConcurrency: definition.maxConcurrency,
        });
        this.addEventSource(this.eventSource);
    }
}
exports.ServiceQueueFunction = ServiceQueueFunction;