Gin: How to stop a middleware and get response immediately?

[sofish]

i'm trying to write a body parser middleware. by design, the middleware will return immediately if an error occurs when fail to decode json. but the middleware acted like that it ignores the return statement and went to next handler.

package middleware

import (
    "github.com/gin-gonic/gin"
    "encoding/json"
    "net/http"
)

func BodyParser() gin.HandlerFunc {
    return func(c *gin.Context) {
        var m map[string]interface{}

        decoder := json.NewDecoder(c.Request.Body)

        defer c.Request.Body.Close()

        if err := decoder.Decode(&m); err != nil {
            c.JSON(http.StatusBadRequest, gin.H{"error": "invalid body"})
            return
        }

        c.Set("body", m)
        c.Next()
    }
}

[sofish]

use Abort before return

[avvari-da]

@sofish How did it work for you? The following is my code snippet, but am unable to make it work. It doesn't abort.

c.Header("WWW-Authenticate", "Basic realm=\"Authorization Required\"")
c.JSON(http.StatusUnauthorized, gin.H{"Message": "Unauthorized"})
c.Abort()
return

Getting this error : [GIN-debug] [WARNING] Headers were already written. Wanted to override status code 401 with 200

[kishaningithub]

@dheeraj2dj Try with

ctx.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"Message": "Unauthorized"})

This works!