@aws-amplify/auth/dist/esm/providers/cognito/credentialsProvider/utils.mjs

Auth category of aws-amplify

import { decodeJWT } from '@aws-amplify/core/internals/utils';
import { AuthError } from '../../../errors/AuthError.mjs';

// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
function formLoginsMap(idToken) {
    const issuer = decodeJWT(idToken).payload.iss;
    const res = {};
    if (!issuer) {
        throw new AuthError({
            name: 'InvalidIdTokenException',
            message: 'Invalid Idtoken.',
        });
    }
    const domainName = issuer.replace(/(^\w+:|^)\/\//, '');
    res[domainName] = idToken;
    return res;
}

export { formLoginsMap };
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