Scala Play Templates: Reverse routing with HTTP POST - scala

Question

when reverse routing to a GET route, i simply do
Hello
this means theres a GET route to the sayHello function. What if it was POST and needed an attached payload? is the POST implicit? how is the payload data attached?

Answer 1

The HTTP method for the reverse router is derived from your route configuration file.
Here is an example from a route configuration where I have two different requests with the same URL but different HTTP methods pointing to different methods:
GET /login controllers.Application.login
POST /login controllers.Application.authenticate
The login() method in the Application controller simply streams out the HTML form:
def login = Action { implicit request =>
Ok(html.loginForm(loginForm))
}
the authenticate() method however binds the request to a form allowing further processing:
def authenticate = Action { implicit request =>
loginForm.bindFromRequest.fold(
formWithErrors => BadRequest(html.loginForm(formWithErrors)),
user => {
// OTHER CODE HERE
Redirect(routes.Blog.createPost).withSession("user" -> user)
}
)
}
This second method requires a form definition in the controller:
val loginForm = Form(
tuple(
"username" -> text,
"password" -> text
) verifying ("Invalid username or password", result => result match {
case (username, password) => Account.authenticate(username, password).isDefined
})
)
So depending which method you put to the reverse router in your view, that is the HTTP method which will be used for the request.