JSON Schema Validation Before Release
Valid JSON is not always correct JSON. Before shipping API examples, config files, or fixtures, validate the structure, required fields, types, and edge cases that consumers actually depend on.
Separate syntax from structure
Formatting checks catch commas and brackets. Schema checks catch missing fields, wrong types, invalid enums, and nested objects that do not match the contract.
Validate examples used in docs
Documentation examples often become copy-paste starting points. Keep them valid, realistic, and free from real customer data or secrets.
Check optional and required fields
Make sure required fields are present and optional fields behave as expected when absent, null, empty, or set to unusual values.
Compare fixture changes
When changing fixtures, compare old and new versions so reviewers can see exactly which fields were added, removed, or renamed.
Keep sensitive values fake
Use realistic but fake IDs, emails, tokens, and names. Never validate examples by pasting production payloads into public pages or tickets.
Related tools
JSON Toolbox helps format and inspect payloads locally. Use Diff Checker to review fixture changes.