Tips for working with YAML and JSON

Tips for working with YAML and JSON

1. Watch out for indentation in YAML

YAML is indentation sensitive. Use only spaces (not tabs) and the same number of spaces per level.

2. Quotes in YAML

Strings in YAML usually do not require quotes, but use them for strings with special characters: colon, hash, square brackets.

3. Anchors and links

YAML supports data reuse through anchors (`&`) and links (`*`) - convenient for DRY configurations.

4. Multiline strings

5. Typing in YAML

YAML automatically determines the types: `true` will become a boolean, `123` will become a number. Use quotes for string values.

6. Validate YAML before deployment

An error in the Kubernetes YAML configuration can cause the deployment to fail. Always validate before use.

7. JSON Schema for validation

Use JSON Schema to check the data structure in both formats.

8. Convert for Debugging

If YAML is difficult to understand, convert it to JSON to visualize the structure.

See also: JSON Formatter, XML Formatter, Diff Checker