Nuxt•4w ago

Properly abort rendering a page and redirect to another

Hello, I use Nuxt 3 and Pinia store. I have this case in which a page may either be rendered or redirect to another page depending on a condition. Here's an example:

<script setup lang="ts">
const ordersStore = useOrdersStore();
await ordersStore.load();

if (ordersStore.latest?.status === "Started") {
  throw navigateTo({
    name: "orders-id-view",
    params: {
      id: ordersStore.latest.id,
    },
  });
}
</script>
<template>
  <div class="mt-8 mb-32">
    <div v-if="ordersStore.application?.status === 'Rejected'">
      Show info
    </div>
    <div v-else>
      other stuff...
    </div>
  </div>
</template>

<script setup lang="ts">
const ordersStore = useOrdersStore();
await ordersStore.load();

if (ordersStore.latest?.status === "Started") {
  throw navigateTo({
    name: "orders-id-view",
    params: {
      id: ordersStore.latest.id,
    },
  });
}
</script>
<template>
  <div class="mt-8 mb-32">
    <div v-if="ordersStore.application?.status === 'Rejected'">
      Show info
    </div>
    <div v-else>
      other stuff...
    </div>
  </div>
</template>

I tried with await navigateTo instead of throw navigateTo too However, this method of throwing to navigate while it works, it seems to be problematic because the server seems to still attempt to render the <template> regardless of throwing/await navigateTo during setup. So, what's the proper way to abort rendering a page and redirect to another based on a condition?

8 Replies

kapa.ai•4w ago

Hi @Mirage. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To properly abort rendering a page and redirect to another based on a condition in Nuxt 3, you can use the navigateTo function within a route middleware. This approach allows you to handle the redirection before the page component is rendered. Here's how you can implement this: 1. Create a middleware file for your page:

// middleware/check-order-status.ts
export default defineNuxtRouteMiddleware(async (to) => {
  const ordersStore = useOrdersStore();
  await ordersStore.load();

  if (ordersStore.latest?.status === "Started") {
    return navigateTo({
      name: "orders-id-view",
      params: {
        id: ordersStore.latest.id,
      },
    });
  }
});

// middleware/check-order-status.ts
export default defineNuxtRouteMiddleware(async (to) => {
  const ordersStore = useOrdersStore();
  await ordersStore.load();

  if (ordersStore.latest?.status === "Started") {
    return navigateTo({
      name: "orders-id-view",
      params: {
        id: ordersStore.latest.id,
      },
    });
  }
});

2. Apply the middleware to your page:

<script setup lang="ts">
definePageMeta({
  middleware: ['check-order-status']
});

const ordersStore = useOrdersStore();
</script>

<template>
  <div class="mt-8 mb-32">
    <div v-if="ordersStore.application?.status === 'Rejected'">
      Show info
    </div>
    <div v-else>
      other stuff...
    </div>
  </div>
</template>

<script setup lang="ts">
definePageMeta({
  middleware: ['check-order-status']
});

const ordersStore = useOrdersStore();
</script>

<template>
  <div class="mt-8 mb-32">
    <div v-if="ordersStore.application?.status === 'Rejected'">
      Show info
    </div>
    <div v-else>
      other stuff...
    </div>
  </div>
</template>

By using a route middleware, you can perform the redirection logic before the page component is rendered. This approach ensures that the server doesn't attempt to render the template when a redirection is needed. The navigateTo function used in the middleware will properly handle the redirection on both the client and server side. If the redirection happens on the server, it will send a 302 redirect response Docs > Api > Utils > navigateTo. This method is more efficient and avoids the issues you were experiencing with throwing or awaiting navigateTo in the setup function. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4w ago

<@1188032231105630269> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

MirageOP•4w ago

@kapa.ai How about using an inline middleware function? Is it possible to call useOrdersStore from within it?

kapa.ai•4w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Yes, it is possible to use an inline middleware function and call useOrdersStore from within it in Nuxt 3. Here's how you can do it:

<script setup lang="ts">
definePageMeta({
  middleware: [
    async function () {
      const ordersStore = useOrdersStore();
      await ordersStore.load();

      if (ordersStore.latest?.status === "Started") {
        return navigateTo({
          name: "orders-id-view",
          params: {
            id: ordersStore.latest.id,
          },
        });
      }
    }
  ]
});

const ordersStore = useOrdersStore();
</script>

<template>
  <div class="mt-8 mb-32">
    <div v-if="ordersStore.application?.status === 'Rejected'">
      Show info
    </div>
    <div v-else>
      other stuff...
    </div>
  </div>
</template>

<script setup lang="ts">
definePageMeta({
  middleware: [
    async function () {
      const ordersStore = useOrdersStore();
      await ordersStore.load();

      if (ordersStore.latest?.status === "Started") {
        return navigateTo({
          name: "orders-id-view",
          params: {
            id: ordersStore.latest.id,
          },
        });
      }
    }
  ]
});

const ordersStore = useOrdersStore();
</script>

<template>
  <div class="mt-8 mb-32">
    <div v-if="ordersStore.application?.status === 'Rejected'">
      Show info
    </div>
    <div v-else>
      other stuff...
    </div>
  </div>
</template>

This approach uses the definePageMeta function to define an inline middleware directly in your page component. The middleware is defined as an async function within an array, allowing you to use await for asynchronous operations. Using inline middleware like this is supported in Nuxt 3, as mentioned in the Docs > Guide > Directory-structure > middleware documentation: "Anonymous (or inline) route middleware are defined directly within the page." This method allows you to access the store and perform the redirection logic before the page is rendered, similar to using a separate middleware file. It's a convenient way to handle page-specific middleware without creating a separate file. Remember that inline middleware runs after global middleware but before any named middleware specified for the page. If you have multiple middleware functions, they will run in the order they are defined in the array. Docs > Api > Utils > definePageMeta provides more examples of how to use definePageMeta, including defining middleware. This approach should work well for your use case, allowing you to check the order status and redirect if necessary, all before the page component is fully rendered. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4w ago

<@1188032231105630269> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

MirageOP•4w ago

@kapa.ai That doesn't seem to work. It seems that nuxt instance is inaccessible inside inline middlewares. Anyways, I don't need more help on this, I'll just use the defineNuxtRouteMiddleware for this case.

kapa.ai•4w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I apologize for the confusion in my previous response. You're correct, and thank you for pointing that out. The Nuxt instance is indeed not accessible within inline middleware defined in definePageMeta, which would prevent the use of composables like useOrdersStore. You're making the right decision to use defineNuxtRouteMiddleware for this case. This approach ensures you have access to the Nuxt context and can use composables properly. For future reference, when using defineNuxtRouteMiddleware, you can define your middleware in a separate file (e.g., middleware/check-order-status.ts) as mentioned earlier:

export default defineNuxtRouteMiddleware(async () => {
  const ordersStore = useOrdersStore();
  await ordersStore.load();

  if (ordersStore.latest?.status === "Started") {
    return navigateTo({
      name: "orders-id-view",
      params: {
        id: ordersStore.latest.id,
      },
    });
  }
});

export default defineNuxtRouteMiddleware(async () => {
  const ordersStore = useOrdersStore();
  await ordersStore.load();

  if (ordersStore.latest?.status === "Started") {
    return navigateTo({
      name: "orders-id-view",
      params: {
        id: ordersStore.latest.id,
      },
    });
  }
});

Then apply it to your page using definePageMeta:

<script setup lang="ts">
definePageMeta({
  middleware: ['check-order-status']
});
</script>

<script setup lang="ts">
definePageMeta({
  middleware: ['check-order-status']
});
</script>

This method ensures you have full access to the Nuxt context and can use composables like useOrdersStore within your middleware. Thank you for your understanding, and I'm glad you've found a solution that works for your case. Docs > Guide > Directory Structure > Middleware provides more information on using route middleware in Nuxt 3. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4w ago

<@1188032231105630269> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

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Properly abort rendering a page and redirect to another

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