next/dist/esm/server/route-modules/app-page/dev-render-context.js

The React Framework

import { getRequestMeta } from '../../request-meta';
/** Capture HMR inputs at the App Page handler boundary in dev. */ export function createDevRenderContext(req, hmrCacheFallback) {
    if (!process.env.__NEXT_DEV_SERVER) {
        return undefined;
    }
    const { serverComponentsHmrCache, hmrRefreshHash } = getRequestMeta(req);
    return {
        serverComponentsHmrCache: serverComponentsHmrCache ?? hmrCacheFallback,
        hmrRefreshHash
    };
}

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