杜松子酒无法设置cookie

Question

I am trying to set a cookie on an HTML page

 func testCookie(c *gin.Context) {
    c.SetCookie("test1", "testvalue", 10, "/", "", true, true)
    c.HTML(200, "dashboard", gin.H{
        "title":    "Dashboard",
        }
    }

This should have set the cookie on the HTML page but it doesn't. My server is running to serve https requests. I am not sure why I am not able to set cookies here.

Answer 1

SetCookie() sets the cookie on the ResponseWriter's headers hence you can read its value in subsequent requests where it can be read using Request object's Cookie() method.

Here's the related code of the same to give you an idea:

func (c *Context) SetCookie(
    name string,
    value string,
    maxAge int,
    path string,
    domain string,
    secure bool,
    httpOnly bool,
) {
    if path == "" {
        path = "/"
    }
    http.SetCookie(c.Writer, &http.Cookie{
        Name:     name,
        Value:    url.QueryEscape(value),
        MaxAge:   maxAge,
        Path:     path,
        Domain:   domain,
        Secure:   secure,
        HttpOnly: httpOnly,
    })
}

func (c *Context) Cookie(name string) (string, error) {
    cookie, err := c.Request.Cookie(name)
    if err != nil {
        return "", err
    }
    val, _ := url.QueryUnescape(cookie.Value)
    return val, nil
}

---

Update

You won't be able to access cookies in your page because you're passing HttpOnly as true. When this is set to true only the server has access to the cookies and you can't fetch their values in front-end using Javascript.