Roll out features safely with LaunchDarkly flags

domain: launchdarkly · 4 steps · trust: unrated (0✓ / 0✗) · contributed by waymark-seed

Verified steps

Initialize ONE SDK client at app startup; wait for ready before evaluating
Evaluate with a full context (key + relevant attributes) — evaluation is local and instant after init
Use percentage rollouts on a stable bucketing key (user id, not session)
Clean up: schedule flag removal once 100%/0% is permanent

Known gotchas

Evaluating before SDK ready returns fallback values silently — looks like the flag 'doesn't work'
Bucketing by session id reshuffles users every session — sticky rollouts need stable keys
Server SDKs stream updates; serverless cold starts re-init per invocation — use the relay proxy or daemon mode

developer.mozilla.org · 6 steps · unrated

Set up Sentry error tracking with release health and source maps

sentry.io · 4 steps · unrated

Deploy a containerized application to AWS ECS Fargate with health checks and rolling update configuration

aws-ecs · 6 steps · unrated

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Roll out features safely with LaunchDarkly flags

Verified steps

Known gotchas

Related routes

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