Dependency Injection Frameworks

This section covers integrating LaunchDarkly SDKs with popular dependency injection frameworks.

Framework Integration Guides

.NET

• Ninject - Integrate the .NET server-side SDK with Ninject dependency injection

Why Use Dependency Injection

Dependency injection frameworks simplify SDK integration by:

• Managing SDK lifecycle as a singleton
• Centralizing configuration
• Enabling testability with mock implementations
• Reducing boilerplate initialization code

Key Requirements

When integrating LaunchDarkly SDKs with dependency injection containers:

MUST register SDK client as a singleton

The SDK must be instantiated once per application lifetime to prevent duplicate connections and ensure proper initialization.

MUST NOT block application startup

Configure initialization timeouts and allow the application to start with fallback values if the SDK cannot connect immediately.

SHOULD integrate with existing configuration management

Load SDK keys and configuration from your existing secrets management system rather than hardcoding values.

To learn more about SDK initialization best practices, read Init and Config.