DefinitelyTyped/types/sha1/index.d.ts

// Type definitions for sha1 1.1
// Project: https://github.com/pvorb/node-sha1
// Definitions by: Bill Sourour <https://github.com/arcdev1>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped

/// <reference types="node" />

/**
 * js function for hashing messages with SHA1
 *
 * @param message - a string or buffer to hash
 * @param options - an options object
 * @returns the resultant SHA1 hash of the given message
 */
declare function main(message: string | Buffer, options?: Sha1AsStringOptions): string;
declare function main(message: string | Buffer, options?: Sha1AsBytesOptions): Uint8Array;
declare function main(message: string | Buffer, options?: Sha1Options): string | Uint8Array;
export = main;

interface Sha1AsStringOptions {
    asBytes?: false;
    asString?: boolean;
}

interface Sha1AsBytesOptions {
    asBytes: true;
    asString?: false;
}

type Sha1Options = Sha1AsStringOptions | Sha1AsBytesOptions;