@aws-amplify/core/dist/esm/utils/convert/base64/base64Encoder.mjs

Core category of aws-amplify

import { getBtoa } from '../../globalHelpers/index.mjs';
import { bytesToString } from './bytesToString.mjs';

// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
const base64Encoder = {
    /**
     * Convert input to base64-encoded string
     * @param input - string to convert to base64
     * @param options - encoding options that can optionally produce a base64url string
     * @returns base64-encoded string
     */
    convert(input, options = {
        urlSafe: false,
        skipPadding: false,
    }) {
        const inputStr = typeof input === 'string' ? input : bytesToString(input);
        let encodedStr = getBtoa()(inputStr);
        // urlSafe char replacement and skipPadding options conform to the base64url spec
        // https://datatracker.ietf.org/doc/html/rfc4648#section-5
        if (options.urlSafe) {
            encodedStr = encodedStr.replace(/\+/g, '-').replace(/\//g, '_');
        }
        if (options.skipPadding) {
            encodedStr = encodedStr.replace(/=/g, '');
        }
        return encodedStr;
    },
};

export { base64Encoder };
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