wisp_flash - v0.1.0

wisp_flash

Functions

get_flash

</> 
pub fn get_flash(
  request: Request(Connection),
  set_in_context: fn(Option(String), Option(String)) -> a,
  next: fn(a) -> Response(Body),
) -> Response(Body)

Get the flash message and kind. This middleware goes around your request. This gets the values from the cookies and then deletes them. This requires a function to set the flash values in your context. After putting these values in the context, you can use them to render alerts in your view.

Example

let set_in_context = fn(kind: Option(String), message: Option(String)) {
  Context(..ctx, flash_kind: kind, flash_message: message)
}

use ctx <- wisp_flash.get_flash(request, set_in_context)

get_flash_in

</> 
pub fn get_flash_in(
  request: Request(Connection),
) -> #(Option(String), Option(String))

Just the incoming part of the get_flash around middleware. This gives you the values to put in the context.

Example

let #(kind, message) = wisp_flash.get_flash_in(request)

get_flash_out

</> 
pub fn get_flash_out(
  response: Response(Body),
  request: Request(Connection),
) -> Response(Body)

The outgoing part of the get_flash around middleware. This deletes the cookies.

Example

response |> get_flash_out(request)

set_flash

</> 
pub fn set_flash(
  response response: Response(Body),
  request request: Request(Connection),
  kind kind: String,
  message message: String,
) -> Response(Body)

Set a flash message in the session cookie. This will store two cookies. One for the message and one for the notification kind.

Example

wisp.redirect("/home")
|> wisp_flash.set_flash(request, "success", "Document Saved")
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