routing-controllers/types/decorator-options/UploadOptions.d.ts

/**
 * Upload decorator parameters.
 */
export interface UploadOptions {
    /**
     * If set to true then uploaded file become required.
     * If user performs a request and file is not in a request then routing-controllers will throw an error.
     */
    required?: boolean;
    /**
     * Special upload options passed to an upload middleware.
     */
    options?: any;
}