@httpland/range-request-middleware/esm/deps/deno.land/std@0.185.0/crypto/to_hash_string.js

HTTP range request middleware

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
// This module is browser compatible.
import { encode as hexEncode } from "../encoding/hex.js";
import { encode as base64Encode } from "../encoding/base64.js";
const decoder = new TextDecoder();
/**
 * Converts a hash to a string with a given encoding.
 * @example
 * ```ts
 * import { crypto } from "https://deno.land/std@$STD_VERSION/crypto/crypto.ts";
 * import { toHashString } from "https://deno.land/std@$STD_VERSION/crypto/to_hash_string.ts"
 *
 * const hash = await crypto.subtle.digest("SHA-384", new TextEncoder().encode("You hear that Mr. Anderson?"));
 *
 * // Hex encoding by default
 * console.log(toHashString(hash));
 *
 * // Or with base64 encoding
 * console.log(toHashString(hash, "base64"));
 * ```
 */
export function toHashString(hash, encoding = "hex") {
    switch (encoding) {
        case "hex":
            return decoder.decode(hexEncode(new Uint8Array(hash)));
        case "base64":
            return base64Encode(hash);
    }
}