adding in docker and such

cmd/main.go

@@ -0,0 +1,62 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"sync"
+
+	"github.com/gofiber/fiber"
+	_ "github.com/mattn/go-sqlite3"
+	"github.com/sirupsen/logrus"
+)
+
+type users struct {
+	mu sync.Mutex
+	db *sql.DB
+}
+
+const file string = "users.db"
+const createTable string = `
+  CREATE TABLE IF NOT EXISTS users (
+  id INTEGER PRIMARY KEY autoincrement,
+  time DATETIME NOT NULL,
+  email TEXT
+  );`
+
+func initializeDb() *sql.DB {
+	db, err := sql.Open("sqlite3", file)
+	if err != nil {
+		logrus.Fatal(err)
+	}
+
+	if _, err := db.Exec(createTable); err != nil {
+		logrus.Fatal(err)
+	}
+	return db
+}
+
+func main() {
+	app := fiber.New()
+
+	db := initializeDb()
+
+	app.Post("/email", func(c *fiber.Ctx) {
+		email := c.FormValue("email")
+		if email == "" {
+			c.Send("Please provide an email address")
+			c.Status(400)
+			c.Redirect("https://flowy.live?error=true")
+      logrus.Error("No email provided")
+			return
+		}
+
+		logrus.Info(fmt.Sprintf("Received email: %s", email))
+
+		db.Exec("INSERT INTO users (time, email) VALUES (datetime('now'), ?)", email)
+		c.Send("Welcome to the newsletter!")
+		c.Redirect("https://flowy.live?success=true")
+		return
+	})
+
+	logrus.Fatal(app.Listen(":3000"))
+}