go gin 必须使用 dive 标记，它告诉 required 校验 深入到 slice、array 这样的子结构体里

package main

import (
"fmt"
"net/http"

"github.com/gin-gonic/gin"
)

type user struct {
Name string `json:"name" binding:"required"`
Email string `json:"email" binding:"required,email"`
}

type data struct {
User []user `json:"user" binding:"required,dive"` // use dive tag
}

//GetDataTest will get test data
func GetDataTest(c *gin.Context) {
var data data
err := c.Bind(&data)
if err == nil {
fmt.Printf("%+v", data)
c.JSON(http.StatusOK, gin.H{
"message": "done",
})
} else {
c.JSON(http.StatusBadRequest, gin.H{
"message": err.Error(),
})
}
}



func main(){

route := gin.Default()
route.POST("/", GetDataTest)
route.Run(":8080")
}

https://blog.csdn.net/private66/article/details/82424743