القرّاء المتسامحون (Tolerant readers)

في هذا الدرس

write consumers that survive harmless change.

الموضوعات المخطط لها

• Tolerant reader: read only the fields you need; ignore unknown ones.
• Do not fail on new fields, new enum values you can safely default, or reordered fields.
• Be strict about what you depend on: a missing required field is still an error.
• In Jackson, ignore unknown properties for external payloads (FAIL_ON_UNKNOWN_PROPERTIES off, or @JsonIgnoreProperties(ignoreUnknown = true)).
• Map to your own model; do not leak the provider's DTO through your code.