@types/create-hash/index.d.ts

// Type definitions for create-hash 1.2
// Project: https://github.com/crypto-browserify/createHash
// Definitions by: BendingBender <https://github.com/BendingBender>,
//                 Konstantin Yuriev <https://github.com/gallowsmaker>,
//                 Max Boguslavskiy <https://github.com/maxbogus>,
//                 Jordan Sexton <https://github.com/jordansexton>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
// TypeScript Version: 2.1

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

declare namespace createHash {
    type TypedArray = Uint8Array | Uint8ClampedArray | Uint16Array | Uint32Array | Int8Array | Int16Array | Int32Array | Float32Array | Float64Array;

    interface HashAlgorithm {
        digest(target: encoding): string;
        digest(): Buffer;

        update(data: string | Buffer | TypedArray | DataView, encoding?: string): this;
        write(data: string | Buffer | TypedArray | DataView, encoding?: string): this;

        end(): void;
        read(): void;
    }

    type encoding = 'utf8' | 'hex' | 'base64';
    type algorithm =
        | 'md5'
        | 'rmd160'
        | 'ripemd160'
        | 'sha'
        | 'sha1'
        | 'sha224'
        | 'sha256'
        | 'sha384'
        | 'sha512';
}

declare function createHash(algorithm: createHash.algorithm, options?: any): createHash.HashAlgorithm;

export = createHash;