How to get and AJAX response using Golang with Gin Routing-CodePudding

Here is my code of Golang (Notice the registerNewUser in the POST ("/register") handler:

func main(){

    router := gin.Default()
    router.LoadHTMLFiles("../login.html", "../recoverPassword.html")
    router.Static("/css", "../css")
    router.Static("/img", "../img")
    router.Static("/js", "../js")
    router.GET("/", loadMainPage)
    router.POST("/register", registerNewUser)

    router.Run("localhost:8080")
}
func registerNewUser(c *gin.Context) {
    fmt.Print("Nonas")
    log.Print("Sisas")
}

Now, here is my code of javascript:

$.ajax({
                        url: "/register",
                        method: "POST",
                        data: {firstname:Firstname, lastname:Lastname, username:Username, email:Email, password:Password, country:Country},
                        beforeSend:function(){
                            $("#submit_register_form_btn").attr('disabled', true);
                            $("#submit_register_form_btn").val('Conectando...');
                        },
                        success:function(response) {
                            $('#submit_register_form_btn').removeAttr('disabled');
                            alert(response);
                        }
                    });

I need a way to return a string as response from Golang to the AJAX petition

CodePudding user response：

fmt and log print to os.Stdout and os.Stderr respectively. You need to respond to the web request.

Gin passes a *gin.Context to your handler for this purpose.

https://pkg.go.dev/github.com/gin-gonic/gin#readme-quick-start shows a very small example of returning data through the context. There are tons of other great examples in https://pkg.go.dev/github.com/gin-gonic/gin#readme-api-examples.

"Context is the most important part of gin," so read the documentation thoroughly after reviewing a few examples to wrap your head around what usage generally looks like.

Once you feel like you have your head wrapped around the quickstart, take a look at gin's Context.String . You can substitute that for the c.JSON call in the example.