Launched: Client-Side Node.js and Server-Side C SDKs

By Ben Woskow   •   July 11, 2019

We're excited to announce two new LaunchDarkly SDKs: the client-side SDK for Node.js and server-side SDK for C! With this announcement, the two SDKs have been promoted to general availability (GA).

Although these SDKs are new to LaunchDarkly, the underlying technologies – Node.js and C – were already supported by our server-side Node.js SDK and client-side C SDK. With this in mind, you might be wondering about the difference between client-side and server-side SDKs.

In a nutshell:

  • LaunchDarkly's client-side SDKs are designed for single-user contexts typically distributed as desktop, mobile, and embedded applications.
  • LaunchDarkly's server-side SDKs are designed for multi-user systems such as web application servers.

Take a look at our documentation to learn more about the implications of using our client-side and server-side SDKs.

With this understanding in mind, we see that both of the SDKs expand support for using LaunchDarkly to new sets of software. The client-side SDK for Node.js expands our support for Node.js to client-side applications such as desktop applications or apps running on Node.js-enabled devices. The server-side SDK for C expands our support for C and C++ to server-side applications built in C or C++ which handle many concurrent users.

Check out the client-side Node.js and server-side C SDK reference guides for information on how to get started. If you have questions, please reach out to our support team at

You May Like
BEST PRACTICESTesting in Production to Stay Safe and Sensible
BEST PRACTICESWhat Is Continuous Testing? A Straightforward Introduction
JULY 29, 2021   •   HOMEPAGE FEATUREDMy Experience as a Career Switcher in Tech
JULY 27, 2021   •   INDUSTRY INSIGHTSNot an Engineer? Find Out Where You Belong
JULY 22, 2021   •   INDUSTRY INSIGHTSA Day in the Life of a Technical Writer
JULY 20, 2021   •   POPULARA Beginners Guide to Feature Management for Federal Agencies