JSON for Configuration Files: Best Practices and Pitfalls
Best practices for using JSON as configuration files: schema validation, environment-specific overrides, comments workarounds, and tooling support.
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Tags: json, developer-tools, configuration
JSON for Configuration Files: Best Practices and Pitfalls Configuration is code. It shapes how your application behaves in production, controls which features are enabled, and often contains the values that determine whether a deploy succeeds or causes an incident. Treating JSON config files as a secondary concern — something to edit quickly and commit without review — is how outages happen. This guide covers the patterns that make JSON configuration maintainable, validatable, and safe. package.json as a Living Reference is the most-read JSON config file in any Node.js project. Its structure shows both what JSON config can do well and where it strains under real-world requirements. The top-level field conventions in are worth studying: Notice the patterns: flat keys for scalar metadata,…
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