JSON in Production: 7 Subtle Bugs That Break Web APIs and How to Debug Them

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JSON in Production: 7 Subtle Bugs That Break Web APIs and How to Debug Them JSON (JavaScript Object Notation, RFC 8259) is the undisputed lingua franca of modern software engineering. Every REST API, GraphQL payload, configuration file, and serverless invocation relies on it. Because JSON syntax looks remarkably simple—just braces, brackets, strings, numbers, and booleans—most developers assume serialization and deserialization are foolproof. In production systems, this assumption leads to silent data corruption, crashing background jobs, and intermittent API failures. In this engineering guid

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