import { Metrics } from '@basemaps/metrics';
import { ALBEvent, ALBResult, CloudFrontRequestEvent, CloudFrontRequestResult } from 'aws-lambda';
import { LambdaHttpResponse } from '.';
import { LogType } from './log';
export interface ActionData {
    version: string;
    name: string;
    rest: string[];
}
export declare type LambdaHttpRequestType = ALBEvent | CloudFrontRequestEvent;
export declare type LambdaHttpReturnType = ALBResult | CloudFrontRequestResult;
export declare class LambdaContext {
    static isAlbEvent(evt: any): evt is ALBEvent;
    static isCloudFrontEvent(evt: any): evt is CloudFrontRequestEvent;
    id: string;
    correlationId: string;
    logContext: Record<string, unknown>;
    timer: Metrics;
    log: LogType;
    evt: LambdaHttpRequestType;
    apiKey: string | undefined;
    headers: Map<string, string>;
    constructor(evt: LambdaHttpRequestType, logger: LogType);
    private loadHeaders;
    get method(): string;
    get path(): string;
    get query(): Record<string, string | string[] | undefined>;
    /**
     * Read a header from the event object
     * @param key header to read
     */
    header(key: string): string | undefined;
    private _action;
    get action(): ActionData;
    /**
     * Set a key to be logged out at the end of the function call
     * @param key key to log as
     * @param val value to log
     */
    set(key: string, val: any): void;
    static toResponse(req: LambdaContext, res: LambdaHttpResponse): LambdaHttpReturnType;
    static toCloudFrontResponse(res: LambdaHttpResponse, req?: CloudFrontRequestEvent): CloudFrontRequestResult;
    static toAlbResponse(res: LambdaHttpResponse): ALBResult;
}
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