react-router-dom switch not rendering components after dynamic path

Question

I`ve been following an e-commerce tutorial and building on top of it. Im new to React and React Router Dom. I've set a dynamic path for individual product pages, and now i' trying to add some new paths ie contact, about, etc.. If I add the new paths above the dynamic path they are rendered properly, but if I place the routes under the one with the dynamic path, for example the /hello, they won't render. Is this normal behaviour??

<Router>
<div>
    <Navbar totalItems={cart.total_items} />
    <Switch>
        <Route exact path="/">
            <Home products={products} handleAddToCart={handleAddToCart} fetchProduct={fetchProduct} />
        </Route>
        <Route exact path="/checkout">
            <Checkout cart={cart} order={order} handleCaptureCheckout={handleCaptureCheckout} error={errorMessage} refreshCart={refreshCart} />
        </Route>
        <Route exact path="/cart">
            <Cart
                cart={cart}
                handleUpdateCartQuantity={handleUpdateCartQuantity}
                handleRemoveFromCart={handleRemoveFromCart}
                handleEmptyCart={handleEmptyCart}
            />
        </Route>
        <Route exact path="/contact">
            <Contact />
        </Route>
        <Route exact path="/:id">
            <Details product={product} handleAddToCart={handleAddToCart} />
        </Route>
        <Route exact path="/hello">
            <h1>Hello World</h1>
        </Route>
    </Switch>
</div>
<Router>

Answer 1

Try removing the exact from the Route.

<Route exact path="/:id">

to:

<Route path="/:id">

Answer 2

Yes, this behavior is completely normal, and expected. Recall that the Switch component "Renders the first child <Route> or <Redirect> that matches the location." This means that in the Switch component path order and specificity matter!

A path "/hello" is more specific than "/:id" , so depending on route order may or may not be matched first. Or in other words, "/hello" can always be matched to "/:id" , but not always the other way around.

You should always order the routes from more specific paths to less specific paths, and if done correctly there should be a near zero need for the exact prop.

"/hello" is more specific than "/:id" which is more specific than "/" .

<Switch>
  <Route path="/checkout">
    <Checkout ... />
  </Route>
  <Route path="/cart">
    <Cart ... />
  </Route>
  <Route path="/contact">
    <Contact />
  </Route>
  <Route path="/hello">
    <h1>Hello World</h1>
  </Route>
  <Route path="/:id">
    <Details ... />
  </Route>
  <Route path="/">
    <Home ... />
  </Route>
</Switch>

If you had a nested "/contact/add" route for example, this is more specific than "/contact" and should be listed higher/before in the Switch .