serde-knowledge-patch

What problem does it solve?

Prevents bugs and outdated patterns caused by changes to serde and serde_json APIs by summarizing recent additions and idiomatic replacements since common model training cutoffs. It helps developers avoid deprecated approaches when serializing, deserializing, and constructing JSON in Rust projects.

Core Features & Use Cases

• Deterministic JSON ordering: guidance on using Map::sort_keys and Value::sort_all_objects to produce stable key order for hashing, diffing, and snapshot tests.
• Direct deserialization from maps: shows how to deserialize structs from Map<String, Value> or &Map<String, Value> to avoid unnecessary round-trips through Value.
• Efficient raw literals: documents RawValue associated constants for null, true, and false to avoid allocation and parsing.
• Ergonomic parsing: explains Map<String, Value> FromStr support to parse object strings more ergonomically.
• Use cases: deterministic serialization, partial JSON responses, dynamic JSON processing, and performance-sensitive API responses.

Quick Start

Load the serde-knowledge-patch and update code to use Map::sort_keys or Value::sort_all_objects for deterministic output and to prefer Map deserialization and RawValue constants where appropriate.