Show HN: Incremental JSON parser for streaming LLM tool calls in Ruby
6 months ago
- #performance optimization
- #streaming AI
- #JSON parsing
- Streaming AI responses enhances user experience by displaying real-time generation.
- Incomplete JSON during streaming causes UI issues like loading spinners and lack of feedback.
- Traditional JSON parsing methods are inefficient (O(n²)) and cause lag as data grows.
- Stateful incremental parsing (O(n)) processes only new data, maintaining performance.
- Edge cases like context-dependent strings and incomplete escapes require careful handling.
- JsonCompleter gem enables real-time UI updates by parsing incomplete JSON efficiently.
- Performance benchmarks show O(n) parsing is 388x faster than O(n²) for 12 KB data.
- Streaming is critical for modern AI interfaces to avoid perceived system freezes.