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To protect client data, your system must identify and block uninvited visitors. Create a REST API using Node.js, TypeScript, and Express, enhanced with JWT support.

Serving map clusters to a mobile app can cause a significant performance bottleneck. Fortunately, it's a problem that can be solved with this caching strategy.

Feedback on an enterprise web app prompted an experiment. Could a WhatsApp chatbot replace it? Would people like it better? Would it be more useful?