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Do you make a remote call every time a feature flag is requested?

LaunchDarkly uses a novel streaming architecture to serve feature flags without making remote requests. We use server-sent events (SSE), a protocol for one-way real-time messaging, to send messages to your servers whenever you change the feature flag rules on your dashboard. SSE is widely used for server-to-browser messaging, but it works equally well for server-to-server communication. The SSE connection is all handled under the hood by our SDKs.

 
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