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Learning Go and Gin from here. So I have a router like this
userRoutes.POST("/login", ensureNotLoggedIn(), performLogin)
and the handler function is like this
func performLogin(c *gin.Context) {
username := c.PostForm("username")
password := c.PostForm("password")
if isUserValid(username, password) {
token := generateSessionToken()
c.SetCookie("token", token, 3600, "", "", false, true)
//is_logged_in is not working in template
c.Set("is_logged_in", true)
render(c, gin.H{"title": "Successful Login"}, "login-successful.html")
} else {
c.HTML(http.StatusBadRequest, "login.html", gin.H{
"ErrorTitle": "Login Failed",
"ErrorMessage": "Invalid credentials provided",
})
}
}
and my template is like
{{ if .is_logged_in }}
<li><a href="/article/create">Create Article</a></li>
{{ end }}
{{ if not .is_logged_in }}
<li><a href="/u/register">Register</a></li>
{{end}}
But in the end this variable in template seems not working, only the second section shows, the first link 'Create Article' is always hiding.
Update
I changed the handler function to something like this,
render(c, gin.H{"title": "Successful Login", "is_logged_in": c.MustGet("is_logged_in").(bool)}, "login-successful.html")
explicitly passing the variable. Now the template element hide and show is correct. So was there anything changed in Golang or Gin to make .Set() behaving differently?
963
Do you load the template firstly?
func main() {
router := gin.Default()
router.LoadHTMLGlob("templates/*")
//router.LoadHTMLFiles("templates/template1.html", "templates/template2.html")
router.GET("/index", func(c *gin.Context) {
c.HTML(http.StatusOK, "index.tmpl", gin.H{
"title": "Main website",
})
})
router.Run(":8080")
}
templates/index.tmpl
<html>
<h1>
{{ .title }}
</h1>
answered Apr 10 '26 06:04
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