QUICK START

Run the Load Balancer

go run cmd/myapp/main.go

Configs available at config/config.json

{
    "healthCheckInterval": "5s",
    "servers": [
        "http://localhost:7070",
        "http://localhost:7071",
        "http://localhost:7072"
    ],
    "weights": [5,3,2],
    "listenPort": "9095",
    "routingAlgo": "consistentHashing"
}

Client instead of connecting directly to servers connect via load balancer

curl localhost:9095

Response:
Hello from server localhost:7070!

Hitting Health Endpoint

curl localhost:9095/health

ConsistentHashing

Remove Server on the fly [Notice how only a handful of request routed to new server rest all remain there, basic concept of consistent hashing]

curl -X POST -H "Content-Type: application/json" -d '{"server_url":"http://localhost:7070"}' http://localhost:9095/remove-server

Add Server on the fly

curl -X POST -H "Content-Type: application/json" -d '{"server_url":"http://localhost:7070"}' http://localhost:9095/add-server