export declare type BodyType = 'base64' | 'text' | 'json';
export interface HttpEventRequest<T = any> {
    /**
     * HTTP method.
     */
    readonly method: string;
    /**
     * URL path
     */
    readonly path: string;
    /**
     * Query string
     */
    readonly queryString: string;
    /**
     * Map of query string parameters.
     */
    readonly queryStringParams: Record<string, string | undefined>;
    /**
     * Map of headers.
     */
    readonly headers: Record<string, string | undefined>;
    /**
     * Body type, either 'base64', 'text', or 'json'. If the body is empty then this property will be undefined.
     */
    readonly bodyType?: BodyType;
    /**
     * Body content, content is determined by 'bodyType', if the bodyType is 'base64' then the content will be a base64 string, if 'text' then the content will be a string and if 'json' then the content will be a parsed JSON object. If the body is empty then this propery will be undefined.
     */
    readonly body?: T;
    /**
     * Source IP of the request.
     */
    readonly sourceIp: string;
}
export interface HttpEventResponse {
    /**
     * Response status code.
     */
    status: number;
    /**
     * Response headers.
     */
    headers?: Record<string, string>;
    /**
     * Response body, either as text or base64 encoded string (for binary data).
     */
    body?: string;
    /**
     * Whether the body is encoded as base64 string.
     */
    isBase64?: boolean;
}
/**
 * Checks if the request body is in base64 format.
 */
export declare const isBase64: (request: HttpEventRequest) => request is Required<HttpEventRequest<string>>;
/**
 * Checks if the request body is text.
 */
export declare const isText: (request: HttpEventRequest) => request is Required<HttpEventRequest<string>>;
/**
 * Checks if the request body is parsed JSON object.
 */
export declare const isJSON: <T>(request: HttpEventRequest<T>) => request is Required<HttpEventRequest<T>>;
/**
 * Builds response for plain text.
 * @param text plain text.
 */
export declare const buildPlainTextResponse: (text: any) => HttpEventResponse;
/**
 * Builds response for HTML content.
 * @param html html content.
 */
export declare const buildHTMLResponse: (html: string) => HttpEventResponse;
/**
 * Builds response for JSON content.
 * @param json JSON string or object to stringify.
 */
export declare const buildJSONResponse: (json: unknown) => HttpEventResponse;
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