refactor-for-testability (#3)

Co-authored-by: jdl <jdl@desktop>
Co-authored-by: jdl <jdl@crumpington.com>
Reviewed-on: #3

peer/main.go

@@ -0,0 +1,23 @@
+package peer
+
+import (
+	"flag"
+	"os"
+)
+
+func Main() {
+	conf := peerConfig{}
+
+	flag.StringVar(&conf.NetName, "name", "", "[REQUIRED] The network name.")
+	flag.StringVar(&conf.HubAddress, "hub-address", "", "[REQUIRED] The hub address.")
+	flag.StringVar(&conf.APIKey, "api-key", "", "[REQUIRED] The node's API key.")
+	flag.Parse()
+
+	if conf.NetName == "" || conf.HubAddress == "" || conf.APIKey == "" {
+		flag.Usage()
+		os.Exit(1)
+	}
+
+	peer := newPeerMain(conf)
+	peer.Run()
+}