DefinitelyTyped/types/checksum/index.d.ts

// Type definitions for checksum 0.1.1
// Project: https://github.com/dshaw/checksum
// Definitions by: Rogier Schouten <https://github.com/rogierschouten>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped



declare namespace checksum {
    /**
     * Options object for all functions
     */
    interface ChecksumOptions {
        /**
         * Algorithm to use, default 'sha1'
         * Can be 'sha1' or 'md5'  (see module 'crypto').
         */
        algorithm?: string;
    }

    /**
     * Generate the checksum for a file on disk
     * @param filename	The file name
     * @param callback	Callback which is called with the result or an error
     */
    function file(filename: string, callback: (error: Error, hash: string) => void): void;
    /**
     * Generate the checksum for a file on disk
     * @param filename	The file name
     * @param options	Options object to indicate hash algo
     * @param callback	Callback which is called with the result or an error
     */
    function file(filename: string, options: ChecksumOptions, callback: (error: Error, hash: string) => void): void;
}

/**
 * Generates a checksum for the given value
 * @param value	Any value
 * @param options	Allows to set the algorithm
 * @returns	Checksum
 */
declare function checksum(value: any, options?: checksum.ChecksumOptions): string;

export = checksum;