我正在學習并嘗試使用 go-gin 框架創建一個簡單的 api，我試圖創建一個用于驗證的中間件，但是當我調用它時它說validations.signupValidator() is undifined來自nodejs express的東西似乎有點不同，在此先感謝您的幫助中間件package validationsimport ( "github.com/bihire/ikaze_server_app/entity" "net/http" "github.com/gin-gonic/gin" "gopkg.in/validator.v2")func signupValidator(ctx *gin.Context) { var user entity.User // if err := ctx.ShouldBindJSON(&user); err != nil { // ctx.JSON(http.StatusBadRequest, gin.H{ // "error": err.Error(), // }) // } if err := validator.Validate(user); err != nil { ctx.JSON(http.StatusBadRequest, gin.H{ "error": err.Error(), }) }}稱它為package routesimport ( "github.com/gin-gonic/gin" "github.com/bihire/ikaze_server_app/service" "github.com/bihire/ikaze_server_app/controller" "github.com/bihire/ikaze_server_app/validations")var ( userController controller.UserController = controller.New(UserService))func Routes(route *gin.Engine) { auth := route.Group("/api/auth") { auth.POST("login", gin.Logger(), validations.signupValidator(), func(ctx *gin.Context) { ctx.JSON(200, userController.Save(ctx)) }) }}
2 回答
胡說叔叔
TA貢獻1804條經驗 獲得超8個贊
您必須首先導出它，signupValidation因為它在另一個包上。為此，只需更改為大寫：SignupValidation
package validations
import (
"github.com/bihire/ikaze_server_app/entity"
"net/http"
"github.com/gin-gonic/gin"
"gopkg.in/validator.v2"
)
func SignupValidator(ctx *gin.Context) {
var user entity.User
// if err := ctx.ShouldBindJSON(&user); err != nil {
// ctx.JSON(http.StatusBadRequest, gin.H{
// "error": err.Error(),
// })
// }
if err := validator.Validate(user); err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{
"error": err.Error(),
})
}
}
第二：用這個簽名制作一個 gin 中間件func (ctx *gin.Context)。您可以通過兩種方式進行：
首先，如果您不想更改注冊
package routes
import (
"github.com/gin-gonic/gin"
"github.com/bihire/ikaze_server_app/service"
"github.com/bihire/ikaze_server_app/controller"
"github.com/bihire/ikaze_server_app/validations"
)
var (
userController controller.UserController = controller.New(UserService)
)
func Routes(route *gin.Engine) {
auth := route.Group("/api/auth")
{
auth.POST("login", gin.Logger(), validations.SignupValidator, func(ctx *gin.Context) {
ctx.JSON(200, userController.Save(ctx))
})
}
}
或者，更改注冊：
func SignupValidator(ctx *gin.Context) gin.HandlerFunc {
return func(c *gin.Context) {
var user entity.User
// if err := ctx.ShouldBindJSON(&user); err != nil {
// ctx.JSON(http.StatusBadRequest, gin.H{
// "error": err.Error(),
// })
// }
if err := validator.Validate(user); err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{
"error": err.Error(),
})
return
}
c.Next()
}
}
然后，您可以使用validations.signupValidator()
在此處查看示例：https ://github.com/gin-gonic/gin#custom-middleware
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