gui prints output from an http get to a configured URL

src/testdata/http.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"net/http"
+	"os"
+)
+
+func main() {
+	p := os.Getenv("PORT")
+	if err := http.ListenAndServe(":"+p, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte(os.Getenv("BODY")))
+	})); err != nil {
+		panic(err)
+	}
+}