Format Migration Guide: JSON, YAML, CSV, and XML
Migrate data between JSON, YAML, CSV, and XML without data loss. Handle type coercion, null values, date strings, and schema mismatches.
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Tags: data, migration, conversion
Format Migration Guide: Move Data Between JSON, YAML, CSV, and XML Format migrations are deceptively risky. The happy path — take data in format A, write it out in format B — often works. The failure modes are subtler: information you didn't know existed gets silently dropped, edge cases in your data reveal parsing inconsistencies, and the "quick migration" turns into an incident when production data doesn't match expectations. This guide covers the four most common migration paths, the information loss risks in each, tooling options, validation strategies, and how to structure a rollback plan. --- Before You Start: Audit What You Have The most common mistake in format migration is assuming you understand your existing data. Before writing any conversion code: Step 1: Profile your current…
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