This is a simple example of a Go HTTP service using the FeatureHub Go SDK.
- Establishes a connection to a FeatureHub server
- Configures a "logging" AnalyticsCollector (events are simply emitted as logs instead of actually being forwarded to something like Google Analytics)
- Handles HTTP requests
- Submits events for each request
First you need a FeatureHub server:
- Run a FeatureHub server (
docker run -d -p 8085:8085 --name featurehub -v $HOME/featurehub:/db featurehub/party-server:latest) - Configure it (http://localhost:8085)
- Add some features
Now run the example golang service:
- Put your API key into the consts in main.go
go run main.go
Now hit the service with curl:
curl http://localhost:8080/static?name=somebody-You should see an analytics event logged to the console
Now try some more features:
- Add a boolean feature-flag called "goodbye"
- Watch the logs - you'll see the service pick up the new feature
- Hit the service with CURL again - it will now respond differently!
You can also try adding some custom rollout strategies to your "goodbye" feature:
- Add a split strategy for "userkey", and configure a few names that will cause it to return a differetn value
- Now hit the endpoint
curl http://localhost:8080/mapped?name=somebodywith some different names, and see the boolean value set accordingly
One final example here is how to use a percentage-based rollout strategy on the userkey field:
- Create a new boolean feature called "random" which defaults to false
- Add a percentage strategy which will set it to true 50% of the time
- Now try hitting
curl http://localhost:8080/random?name=somebodywith a couple of different names. Roughly 50% of them should return hello, the other half goodbye - The response should be consistent for each name (eg "bob" will always receive the same greeting, "fred" will always receive the same greeting)