system.ts

Overview

The system.ts file defines the ILangfuseConfig interface, which specifies the structure for configuration objects used to connect and authenticate with the Langfuse service. This interface ensures that any configuration passed in the system contains all necessary credentials and identifiers to successfully interact with Langfuse APIs or SDKs.

This file acts as a foundational contract for configuration data, enabling consistent and type-safe usage across the application or library components that require Langfuse connectivity.

Interface: ILangfuseConfig

Description

ILangfuseConfig is a TypeScript interface that outlines the required properties for configuring the Langfuse service integration. It enforces that any object adhering to this interface must include specific keys related to authentication, project identification, and endpoint specification.

Properties

Property	Type	Description
`secret_key`	string	A secret key used for authenticating private API requests.
`public_key`	string	A public key used for client-side or public-facing operations.
`host`	string	The base URL or host address of the Langfuse service endpoint.
`project_id`	string	A unique identifier for the Langfuse project.
`project_name`	string	The human-readable name of the Langfuse project.

Usage Example

import { ILangfuseConfig } from './system';

const config: ILangfuseConfig = {
  secret_key: 'sk_test_1234567890abcdef',
  public_key: 'pk_test_abcdef1234567890',
  host: 'https://api.langfuse.com',
  project_id: 'proj_987654321',
  project_name: 'MyLangfuseProject',
};

// Example usage in an SDK initialization
LangfuseSDK.initialize(config);

Implementation Details

This file contains only one interface; no classes or functions are implemented here.
The interface is designed to provide compile-time type safety for configuration objects.
It helps prevent runtime errors by ensuring all necessary config values are present.
The interface does not enforce any logic or validation; it's a static type contract.

Interaction with Other Parts of the System

Other modules or components responsible for connecting with Langfuse API or SDK will import this interface to type-check configuration objects.
Typically used during initialization or setup phases of the Langfuse client.
Ensures that configuration passed to API clients or services is complete and consistent.
Facilitates maintainability by centralizing configuration structure.

Diagram: Interface Structure

classDiagram
    class ILangfuseConfig {
        +secret_key: string
        +public_key: string
        +host: string
        +project_id: string
        +project_name: string
    }

Summary

system.ts is a small but critical file that defines the configuration interface for Langfuse service integration. It ensures any configuration object includes all necessary credentials and identifiers, thereby enabling secure and consistent communication with Langfuse APIs. Its use promotes strong typing and reduces configuration errors in the overall system.