@aws-amplify/storage/dist/cjs/providers/s3/utils/md5.js

Storage category of aws-amplify

'use strict';

// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
Object.defineProperty(exports, "__esModule", { value: true });
exports.calculateContentMd5 = void 0;
const md5_js_1 = require("@smithy/md5-js");
const utils_1 = require("./client/utils");
const calculateContentMd5 = async (content) => {
    const hasher = new md5_js_1.Md5();
    const buffer = content instanceof Blob ? await readFile(content) : content;
    hasher.update(buffer);
    const digest = await hasher.digest();
    return (0, utils_1.toBase64)(digest);
};
exports.calculateContentMd5 = calculateContentMd5;
const readFile = (file) => new Promise((resolve, reject) => {
    const reader = new FileReader();
    reader.onload = () => {
        resolve(reader.result);
    };
    reader.onabort = () => {
        reject(new Error('Read aborted'));
    };
    reader.onerror = () => {
        reject(reader.error);
    };
    reader.readAsArrayBuffer(file);
});
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