commit 4df35bbec6d12e2cd47bb9c8f50ce3c0ac668db0
Author: Bruno Rybársky <bruno@brn.systems>
Date:   Sat Nov 4 14:13:24 2023 +0100

    first commit

diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/asedraw.iml b/.idea/asedraw.iml
new file mode 100644
index 0000000..5e764c4
--- /dev/null
+++ b/.idea/asedraw.iml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="Go" enabled="true" />
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..ec9ad9f
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/asedraw.iml" filepath="$PROJECT_DIR$/.idea/asedraw.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..0e1688b
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module asedraw
+
+go 1.21
+
+require github.com/gorilla/websocket v1.5.0
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..e5a03d4
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
+github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..de596af
--- /dev/null
+++ b/main.go
@@ -0,0 +1,41 @@
+package main
+
+import (
+	"flag"
+	"github.com/gorilla/websocket"
+	"log"
+	"net/http"
+)
+
+var addr = flag.String("addr", "localhost:8080", "http service address")
+
+var upgrader = websocket.Upgrader{} // use default options
+
+func echo(w http.ResponseWriter, r *http.Request) {
+	c, err := upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		log.Print("upgrade:", err)
+		return
+	}
+	defer c.Close()
+	for {
+		mt, message, err := c.ReadMessage()
+		if err != nil {
+			log.Println("read:", err)
+			break
+		}
+		log.Printf("recv: %s", message)
+		err = c.WriteMessage(mt, message)
+		if err != nil {
+			log.Println("write:", err)
+			break
+		}
+	}
+}
+
+func main() {
+	flag.Parse()
+	log.SetFlags(0)
+	http.HandleFunc("/", echo)
+	log.Fatal(http.ListenAndServe(*addr, nil))
+}