React router doesnt reach redirect

Question

I have a page that has tabs on it. When I navigate to the page on my app I push to the base app. Ie. "/profile".

This is my profile component, the page that gets called.

<Profile>
      <Switch>
        <Route exact path={`${path}/feed`} component={Feed} />
        
       
        {profileId !== null && (
          <>
            <Route exact path={`${path}/friends`} component={Friends} />
            <Route exact path={`${path}/locations`} component={Locations} />
            <Route exact path={`${path}/blockedlist`} component={BlockedList} />
          </>
        )}
        <Redirect from={path} to={`${path}/feed`} />
      </Switch>
    </Profile>

The redirect never gets run. When I remove the check if profileId !== null then it works. Basically when I load the page it will be at path /profile then this component should handle the redirect to /feed on initial load.

Answer 1

If you need to avoid wrapping an element (like with these Route's), you can spread an array of JSX elements instead, like this:

<Switch>
  <Route exact path={`${path}/feed`} component={Feed} />
  {...(profileId !== null ? [
    <Route exact path={`${path}/friends`} component={Friends} key='friends' />,
    <Route exact path={`${path}/locations`} component={Locations} key='locations' />,
    <Route exact path={`${path}/blockedlist`} component={BlockedList} key='blockedlist' />
  ]: [])}
  <Redirect from={path} to={`${path}/feed`} />
</Switch>

Broken down, what this is doing is:

{
  ...( // The spread operator will expand the array it's given into its components
    conditional ? // Check your condition
      [routes]: // If it's true, return the routes
      [] // If not, return no routes
  )
}

Since it's returning an array into the render function, each item should have a key (Which is used by react to optimise the re-renders) so I've set each route to have part of it's path name as the key as these should be unique.