Solara•5mo ago

404 Solara Router

Hi, when you try and go to a Solara page which doesn’t exist you will see a very simple page which has the text "Page not found by Solara router". Is there a way of either replacing this with a different page, eg my own 404 page not found, or redirecting the user from the default Solara "Page not found by Solara router" page to one I define, eg my own 404 page not found?

6 Replies

iisakkirotko•5mo ago

Hey @Harry! Currently it's not possible to customize the 404 page, or to redirect to a different page. This would be a good feature to have, so I'll take another look at implementing this next week, unless you would like to work on it and open a PR. Let me know if you do and maybe I can give you some pointers

Harry•5mo ago

Hi @cr33pyguy, thannk you for getting back. Unfortunately, I don't have time to work on this at the moment, but it would be an awesome and very useful feature for Solara!

iisakkirotko•5mo ago

No worries! I'll try and take a look at it later this week.

Harry•5mo ago

awesome thank you @cr33pyguy

MaartenBreddels•5mo ago

@Harry please take a look at https://github.com/widgetti/solara/pull/670

Monty Python•5mo ago

maartenbreddels

<:pull_open:882464248721182842> [widgetti/solara] fix: if we hit a 404 in starlette, raise instead of render a 404

This allows middleware or error handlers to catch the 404 and do something custom. Example:

import solara

clicks = solara.reactive(0)

added = False

def add_exception_handler():
    global added
    print("add_exception_handler", added)
    if not added:
        import solara.server.starlette
        from starlette.responses import HTMLResponse
        async def server_error(request, exc):
            return HTMLResponse(content="My custom 404", status_code=exc.status_code)

        solara.server.starlette.app.add_exception_handler(404, server_error)
        added = True

@solara.component
def Page():

    add_exception_handler()
    solara.Text("hello world")

import solara

clicks = solara.reactive(0)

added = False

def add_exception_handler():
    global added
    print("add_exception_handler", added)
    if not added:
        import solara.server.starlette
        from starlette.responses import HTMLResponse
        async def server_error(request, exc):
            return HTMLResponse(content="My custom 404", status_code=exc.status_code)

        solara.server.starlette.app.add_exception_handler(404, server_error)
        added = True

@solara.component
def Page():

    add_exception_handler()
    solara.Text("hello world")

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404 Solara Router