Explicity raise Phoenix.Router.NoRouteError

Phoenix Forum Questions / Help
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1

I want to explicitly render the default debug page of Phoenix.Router.NoRouteError with stacktrace when a certain environment variable is not set and user tries to illegally access a route (/exampleroute).

When an environment variable is not set, in dev environment I want to display the debug stack trace page.

When it happens in prod, I want to display the JSON response {"errors":{"detail":"Not Found"}}.

But when the environment variable is set in both environments, I am using plug controller which allows the user to access the route (/exampleroute) succesfully.

raise Phoenix.Router.NoRouteError, conn: conn, router: MyProjectWeb.router, plug_Status: 404

This is not working from controller plug in dev environment as I am only getting {"errors":{"detail":"Internal Server Error"}} and no stacktrace is getting displayed.

P.S: The debug page is getting correctly displayed for any other unspecified routes.

2

I’m not very clear about your problem. But since I don’t see /fauce route in your available routes. Most probably you’re calling the wrong route.

This problem happens when it does not get the correct route

3

I want to know how to explicitly throw this error from controller/conn? I want to render this error debug webpage for a particular route. This error will be deliberately thrown for a particular route.

4

You can take a look at this

Phoenix.Controller.action_fallback/1

5

How do I render the stack trace page using this function?

6

why do you need to render stack trace? You can just return the error view which will give you no route found. And you will not get internal server error

7

You can get the stacktrace of the current process using Process.info(self(), :current_stacktrace)

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