Leveraging React Context Across Render Boundaries in Next.js - Lessons from Building a Locale Switcher#138
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… Next.js applications - Introduced a comprehensive guide on building a locale switcher using React Context in Next.js. - Discussed challenges related to accessing localized slugs and managing state across render boundaries. - Implemented a Context Hydrator pattern to effectively bridge server-rendered data with client-side components. - Provided code examples for context setup, hydrator component, and locale switcher functionality.
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In Next.js applications, layouts often need access to data that only becomes available after a nested page has rendered - for example, localized slugs from a headless CMS that are required to build SEO-friendly, localized URLs. This article explores how to bridge that gap with React Context, why global stores and "server contexts" are usually not a good idea, and how a context-based pattern can help manage your state safely across render client/server boundaries.