improved metrics implementation

internal/api/v1/agents.go

@@ -0,0 +1,18 @@
+package v1
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/coder/websocket"
+	"github.com/coder/websocket/wsjson"
+	U "github.com/yusing/go-proxy/internal/api/v1/utils"
+	config "github.com/yusing/go-proxy/internal/config/types"
+)
+
+func AgentsWS(cfg config.ConfigInstance, w http.ResponseWriter, r *http.Request) {
+	U.PeriodicWS(cfg.Value().MatchDomains, w, r, 10*time.Second, func(conn *websocket.Conn) error {
+		wsjson.Write(r.Context(), conn, cfg.ListAgents())
+		return nil
+	})
+}