Plug.ErrorHandler: how to use to return JSON errors?

[Exadra37]

@dimitarvp

@Exadra37

If I am not mistake the above will override the call to the Error view at lib/yourapp_web/views/error_view.ex.

I still don’t understand where to put this copy-pasted module code in my Phoenix project, and how do I register it to be used – in the router, the endpoint, somewhere else?

I update my previous post while you made this one to make it clear, but here it his again:

# file: lib/yourapp_web/router.ex
  pipeline :api do
    plug :accepts, ["json"],
    plug :handle_errors
  end

  # you may need to pattern match in `conn.status` to make this work
  def handle_errors(conn, %{kind: _kind, reason: _reason, stack: _stack}) do
    # You may need to use the Jason library if returning only the map doesn't work.
    # You also want to put the `application/json` header in the `conn`
    send_resp(conn, conn.status,%{error: conn.status, message:  "Something went wrong"})
  end

This is a guess from me, not actually tried it.

EDIT: On a second though I think this isn’t reflecting the intended use from the Plug.ErrorHandler