import { lambda, sqs } from "@pulumi/aws";
import * as pulumi from "@pulumi/pulumi";
import { Handler } from "./function";
import { EventSubscription } from "./subscription";
export interface QueueEvent {
    Records: QueueRecord[];
}
export interface QueueRecord {
    messageId: string;
    receiptHandle: string;
    body: string;
    attributes: {
        ApproximateReceiveCount: string;
        SentTimestamp: string;
        SenderId: string;
        ApproximateFirstReceiveTimestamp: string;
    };
    messageAttributes: Record<string, any>;
    md5OfBody: string;
    eventSource: string;
    eventSourceARN: string;
    awsRegion: string;
}
export declare type QueueEventHandler = Handler<QueueEvent, void>;
/**
 * Arguments to control the sqs subscription.
 */
export declare type QueueSubscriptionArgs = {
    /**
     * The largest number of records that AWS Lambda will retrieve. The maximum batch size supported
     * by Amazon Simple Queue Service is up to 10 queue messages per batch. The default setting is
     * 10.
     *
     * See https://docs.aws.amazon.com/lambda/latest/dg/with-sqs.html for more details.
     */
    batchSize?: number;
};
/**
 * Creates a new subscription to the given queue using the lambda provided, along with optional
 * options to control the behavior of the subscription.
 */
export declare function subscribe(name: string, topic: sqs.Queue, handler: QueueEventHandler, args?: QueueSubscriptionArgs, opts?: pulumi.ResourceOptions): QueueEventSubscription;
export declare class QueueEventSubscription extends EventSubscription {
    /**
     * The underlying sns object created for the subscription.
     */
    readonly eventSourceMapping: lambda.EventSourceMapping;
    constructor(name: string, queue: sqs.Queue, func: lambda.Function, args: QueueSubscriptionArgs, opts?: pulumi.ResourceOptions);
}