feat: initial Gin-Go web app scaffold

main.go

@@ -0,0 +1,65 @@
+package main
+
+import (
+  "net/http"
+  "sync"
+
+  "github.com/gin-gonic/gin"
+)
+
+type User struct {
+  ID    int    `json:"id"`
+  Name  string `json:"name"`
+  Email string `json:"email"`
+}
+
+var (
+  users  = []User{
+    {ID: 1, Name: "Alice", Email: "alice@example.com"},
+    {ID: 2, Name: "Bob", Email: "bob@example.com"},
+  }
+  nextID = 3
+  mu     sync.Mutex
+)
+
+func main() {
+  r := gin.Default()
+
+  // HTML 模板
+  r.LoadHTMLGlob("templates/*.html")
+  // 静态资源
+  r.Static("/static", "./static")
+
+  r.GET("/", func(c *gin.Context) {
+    c.HTML(http.StatusOK, "index.html", gin.H{
+      "title":   "Gin Web App",
+      "message": "Welcome to Gin with Go",
+    })
+  })
+
+  r.GET("/ping", func(c *gin.Context) {
+    c.JSON(http.StatusOK, gin.H{"message": "pong"})
+  })
+
+  r.GET("/users", func(c *gin.Context) {
+    mu.Lock()
+    defer mu.Unlock()
+    c.JSON(http.StatusOK, users)
+  })
+
+  r.POST("/users", func(c *gin.Context) {
+    var newUser User
+    if err := c.ShouldBindJSON(&newUser); err != nil {
+      c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+      return
+    }
+    mu.Lock()
+    newUser.ID = nextID
+    nextID++
+    users = append(users, newUser)
+    mu.Unlock()
+    c.JSON(http.StatusCreated, newUser)
+  })
+
+  r.Run(":8080")
+}