Demo steps

Run the following command to build the binaraies.

• go build -o demo main.go

Run the following command to start the server.

• ./demo

Run the following command to start the client.

• while true; do curl http://localhost:8080/version; sleep 0.1; done

Modify the source code to change the const version to the following value.

const version = "v0.0.2"

Run the following command to build the binaraies - new version.

• go build -o demo main.go

Run the following command to restart the server with new version. Note that the [PID] should be replaced with the old version PID.

• kill -s HUP [PID]

Watch the output of client windows. You should notice that the client doesn't report any error during the server restart.