enova · seanluo1 · Jun 18, 2019
diff --git a/.DS_Store b/.DS_Store
diff --git a/exercise-003-web/.DS_Store b/exercise-003-web/.DS_Store
diff --git a/exercise-003-web/nameTrack/README.md b/exercise-003-web/nameTrack/README.md
@@ -0,0 +1,7 @@
+Instructions:
+
+From within the nameTrack directory, run the command
+
+"go run main.go"
+
+Go to "localhost:8080" in your web browser
diff --git a/exercise-003-web/nameTrack/home.html b/exercise-003-web/nameTrack/home.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+  <title>Sean's Super Cool Web App</title>
+
+  <body>
+    <form action="/signup" method="POST">
+      <input type="text" name="username" placeholder="Enter Name">
+      <input type="submit" value="Check-In"/>
+    </form>
+  </body>
+</html>
diff --git a/exercise-003-web/nameTrack/main.go b/exercise-003-web/nameTrack/main.go
@@ -0,0 +1,34 @@
+package main
+
+import (
+	"fmt"
+	"html/template"
+	"net/http"
+)
+
+var homeT = template.Must(template.ParseFiles("home.html"))
+
+var table = map[string]int{} // global table to hold usernames and counts of visits
+
+func home(w http.ResponseWriter, r *http.Request) {
+	homeT.Execute(w, nil)
+
+	r.ParseForm()
+	visitor := r.Form.Get("username") //hold current visitor name
+
+	if count, isIn := table[visitor]; isIn {
+		table[visitor] = count + 1 // user has been seen before, increment count
+	} else {
+		table[visitor] = 1 // new user, add to dict
+	}
+
+	for name, count := range table {
+		fmt.Fprintf(w, "<b>User:</b> %v <b>Visits:</b> %v <br><br>", name, count) // print name and # of times visited
+	}
+
+}
+
+func main() {
+	http.HandleFunc("/", home)        // handle all pages with home()
+	http.ListenAndServe(":8080", nil) // see web app by visiting "localhost:8080"
+}