index.d.ts

declare module 'redux-persist-filesystem-storage' {
  interface Options {
    storagePath: string
    encoding: string
    toFileName: (name: string) => string
    fromFileName: (name: string) => string
  }

  const FilesystemStorage: {
    config: (customOptions: Partial<Options>) => Options

    setItem: (
      key: string,
      value: string,
      callback?: (error?: Error) => void,
    ) => Promise<void>

    getItem: (
      key: string,
      callback?: (error?: Error, result?: string) => void,
    ) => Promise<string | undefined>

    removeItem: (
      key: string,
      callback?: (error?: Error) => void,
    ) => Promise<undefined>

    getAllKeys: (
      callback?: (error?: Error, keys?: Array<string>) => void,
    ) => Promise<string[]> | Promise<undefined>

    clear: (callback?: (error?: Error) => void) => Promise<boolean>
  }

  export default FilesystemStorage
}