langlite-core

Core types, data structures, and logic for the Langlite observability SDK.

Overview

This package provides the platform-agnostic foundation for Langlite:

• Types: All TypeScript interfaces and type definitions
• Data structures: LangliteTrace, LangliteGeneration, LangliteSpan classes
• Utilities: ID generation, serialization helpers
• No platform dependencies: Works in Node.js, browsers, and edge environments

Usage

This package is typically not installed directly. Use langlite-node or langlite-web instead.

For library authors or advanced use cases:

import { LangliteTrace, type TraceArgs } from 'langlite-core';

const trace = new LangliteTrace({ name: 'custom-trace' });
const generation = trace.addGeneration({
  name: 'llm-call',
  model: 'gpt-4',
  input: 'Hello',
  output: 'Hi there!',
});

Exports

• Types: LangliteConfig, TraceArgs, GenerationArgs, SpanArgs, EventArgs, ScoreArgs
• Classes: LangliteTrace, LangliteGeneration, LangliteSpan
• Utils: generateId, serialization helpers

Dependencies

None - this package is dependency-free for maximum compatibility.