/// <reference types="node" />
import { ConfigService } from '@nestjs/config';
import { FileUploadProviderType } from './file.provider';
export declare const defaultAllowedMimes: string[];
export interface FileUpload {
    buffer: Buffer;
    mimetype: string;
    extension: string;
}
export declare class FileService {
    private readonly configSvc;
    private readonly uploadProvider;
    constructor(configSvc: ConfigService, uploadProvider: FileUploadProviderType);
    private readonly logger;
    s3UploadPublicFile(dataBuffer: Buffer, filePath: string, mimeType: string): Promise<[location: string, key: string]>;
    s3DeletePublicFile(key: string): Promise<void>;
    s3UploadPrivateFile(dataBuffer: Buffer, filePath: string, mimeType: string): Promise<[location: string, key: string]>;
    s3DeletePrivateFile(key: string): Promise<void>;
    s3GeneratePreSignedUrl(key: string): Promise<string>;
}