@aws-amplify/core/dist/esm/singleton/apis/fetchAuthSession.mjs

Core category of aws-amplify

import { resolveCtxArgs } from '../../context/resolveCtxArgs.mjs';
import { isUnconfiguredNoCtxCall } from './isUnconfiguredNoCtxCall.mjs';

// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
function fetchAuthSession(...args) {
    // Back-compat: before the context migration, `fetchAuthSession()` on an
    // unconfigured Amplify resolved with an empty session (the unconfigured
    // `AuthClass` optional-chains its missing providers) rather than throwing.
    // Preserve that for the no-context form; the typed guards in
    // `resolveCtxArgs` still apply to explicit / mis-ordered context arguments.
    if (isUnconfiguredNoCtxCall(args)) {
        return Promise.resolve({
            tokens: undefined,
            credentials: undefined,
            identityId: undefined,
            userSub: undefined,
        });
    }
    // `resolveCtxArgs` handles the global-context fallback plus the
    // mis-ordered / undefined-context guards used across all category APIs.
    const [ctx, options] = resolveCtxArgs(args);
    return ctx.fetchAuthSession(options);
}

export { fetchAuthSession };
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