poc/rapidleech_like_state_update: init

Signed-off-by: lucasew <lucas59356@gmail.com>
lucasew · Mar 19, 2021 · 12cec2a · 12cec2a
1 parent 65002fd
commit 12cec2a
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diff --git a/poc/rapidleech_like_state_update/go.mod b/poc/rapidleech_like_state_update/go.mod
@@ -0,0 +1,3 @@
+module github.com/lucasew/playground/poc/rapidleech_like_state_update
+
+go 1.16
diff --git a/poc/rapidleech_like_state_update/main.go b/poc/rapidleech_like_state_update/main.go
@@ -0,0 +1,56 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+)
+
+func main() {
+    http.HandleFunc("/", handler)
+    err := http.ListenAndServe(":42069", nil)
+    if err != nil {
+        panic(err)
+    }
+}
+
+const demoHTML = `
+<html>
+<head>
+    <title>Teste</title>
+</head>
+<body>
+<script>
+function changeCounter(str) {
+    document.getElementById("counter").textContent = str
+}
+</script>
+<h1 id="counter"></h1>
+</body>
+</html>
+`
+
+func handler(w http.ResponseWriter, r *http.Request) {
+    defer println("Conexão encerrada")
+    w.WriteHeader(200)
+    // w.Header().Add("Connection", "keep-alive")
+    // w.Header().Add("Keep-Alive", "timeout=5,max=1")
+    w.Write([]byte(demoHTML))
+    counter := 0
+    ticker := time.Tick(time.Second)
+    for {
+        if f, ok := w.(http.Flusher); ok {
+            f.Flush()
+        }
+        select {
+        case <-ticker:
+            fmt.Fprintf(w, "<script>changeCounter('%s')</script>", fmt.Sprintf("Contador: %d", counter))
+            counter++
+        case <-r.Context().Done():
+            return
+        }
+        // if counter == 10 {
+        //     break
+        // }
+    }
+}
diff --git a/poc/rapidleech_like_state_update/shell.nix b/poc/rapidleech_like_state_update/shell.nix
@@ -0,0 +1,7 @@
+{pkgs ? import <nixpkgs> {}}:
+pkgs.mkShell {
+  buildInputs = with pkgs; [
+    go
+    gopls
+  ];
+}
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,3 @@
		module github.com/lucasew/playground/poc/rapidleech_like_state_update

		go 1.16