Nuxt•2w ago

Advice on Nuxt project setup

Hi all I have written a simple backend in rust that does session auth with cookies. Now the last couple of days I have been trying to make a simple frontend for this in Nuxt but I'm very new to using this kind of frontend frameworks so ive been struggling a bit with whats what. For now Im stuck on the following things: How do you recommend handling session management and auth handling? I have tried implementing server routes (bff) to access my backend but everything I do to get it to work like I want has me jumping trough so many hoops I must be doing something wrong. What is the idiomatic way to access an external api in nuxt (and do error handling)? Alexander Lichter's videos have been really helpfull. But I still feel like im missing something. Thanks in advance

YouTube

Alexander Lichter

Web Engineering Consultant, Managing Director and Nuxt.js team member

56 Replies

kapa.ai•2w ago

Hi @cruvex. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- I'm happy to help with your Nuxt project setup! Let me address your questions about session management, authentication, and API access in Nuxt. Session Management and Authentication For session management with cookies in Nuxt, I recommend using the nuxt-auth-utils module. This is a clean, official approach that works well with cookie-based authentication: 1. Install the module:

npx nuxi@latest module add auth-utils

npx nuxi@latest module add auth-utils

2. Set up a cookie encryption key in your .env file:

NUXT_SESSION_PASSWORD=a-random-password-with-at-least-32-characters

NUXT_SESSION_PASSWORD=a-random-password-with-at-least-32-characters

3. Create authentication logic using the module's utilities: - Use setUserSession() on the server side to set session cookies - Use useUserSession() composable on the client side to access session data Nuxt Docs: Sessions and Authentication provides a complete recipe for implementing this approach. Accessing External APIs For accessing your Rust backend API, I recommend creating a custom fetch utility. This is the idiomatic way to handle API calls in Nuxt with proper error handling:

// plugins/api.ts
export default defineNuxtPlugin((nuxtApp) => {
  const { session } = useUserSession()

  const api = $fetch.create({
    baseURL: '<https://your-rust-api.com',>
    // This will automatically pass cookies from browser to server
    credentials: 'include',
    async onResponseError({ response }) {
      if (response.status === 401) {
        await nuxtApp.runWithContext(() => navigateTo('/login'))
      }
    }
  })

  return {
    provide: {
      api
    }
  }
})

// plugins/api.ts
export default defineNuxtPlugin((nuxtApp) => {
  const { session } = useUserSession()

  const api = $fetch.create({
    baseURL: '<https://your-rust-api.com',>
    // This will automatically pass cookies from browser to server
    credentials: 'include',
    async onResponseError({ response }) {
      if (response.status === 401) {
        await nuxtApp.runWithContext(() => navigateTo('/login'))
      }
    }
  })

  return {
    provide: {
      api
    }
  }
})

Then create a composable to use this API client:

// composables/useAPI.ts
export function useAPI<T>(
  url: string | (() => string),
  options?: UseFetchOptions<T>,
) {
  return useFetch(url, {
    ...options,
    $fetch: useNuxtApp().$api
  })
}

// composables/useAPI.ts
export function useAPI<T>(
  url: string | (() => string),
  options?: UseFetchOptions<T>,
) {
  return useFetch(url, {
    ...options,
    $fetch: useNuxtApp().$api
  })
}

This approach is documented in Nuxt Docs: Custom useFetch. Route Protection To protect routes that require authentication: 1. Create a middleware for client-side protection:

// middleware/authenticated.ts
export default defineNuxtRouteMiddleware(() => {
  const { loggedIn } = useUserSession()

  if (!loggedIn.value) {
    return navigateTo('/login')
  }
})

// middleware/authenticated.ts
export default defineNuxtRouteMiddleware(() => {
  const { loggedIn } = useUserSession()

  if (!loggedIn.value) {
    return navigateTo('/login')
  }
})

2. Apply this middleware to the routes you want to protect. Cookie Handling Between Server and Client If you're experiencing issues with cookies not being passed correctly between server and client during SSR, check out Alexander Lichter's video on Passing Cookies with event.$fetch and useRequestFetch in Nuxt, which addresses this specific issue. Getting Additional Help If you're still struggling, the Nuxt community is very helpful. You can open a GitHub Discussion with specific code examples of what you're trying to accomplish. As mentioned in the Nuxt Docs: Getting Help, providing a clear explanation of your objective and what you've tried will help others assist you better. Hope this helps you get started with your Nuxt frontend for your Rust backend! ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@255361968037167105> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

cruvexOP•2w ago

@kapa.ai Would I use this custom useAPI composable to query my the server side on the client side and my rust backend on the server side? For example If I want to retrieve users do I do await useAPI(server route) on the client side and then this server route calls await useAPI(rust backend route)?

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- You've asked a great question about API access patterns in Nuxt. Let me clarify how to structure your API calls between client, server, and your Rust backend. Understanding the API Access Pattern In Nuxt, you have two main approaches for accessing your Rust backend: 1. Direct client-to-Rust approach: The client directly calls your Rust backend 2. BFF (Backend-For-Frontend) pattern: The client calls Nuxt server routes, which then call your Rust backend The BFF pattern is often preferred for several reasons: - It keeps sensitive logic on the server - It can simplify authentication handling - It reduces client-side code complexity Implementing the BFF Pattern Here's how to implement this with your custom useAPI composable: 1. Client-side code:

// In your Vue component
const { data: users } = await useAPI('/api/users')

// In your Vue component
const { data: users } = await useAPI('/api/users')

2. Server-side route in Nuxt:

// server/api/users.ts
export default defineEventHandler(async (event) => {
  // Use $fetch directly to call your Rust backend
  const users = await $fetch('<https://your-rust-api.com/users',> {
    // Forward cookies/auth from the client request to your Rust API
    headers: {
      cookie: getRequestHeaders(event).cookie
    }
  })
  
  return users
})

// server/api/users.ts
export default defineEventHandler(async (event) => {
  // Use $fetch directly to call your Rust backend
  const users = await $fetch('<https://your-rust-api.com/users',> {
    // Forward cookies/auth from the client request to your Rust API
    headers: {
      cookie: getRequestHeaders(event).cookie
    }
  })
  
  return users
})

This approach is supported by the documentation on custom useFetch in Nuxt, which shows how to create a custom API client. Benefits of This Approach The main benefit is that useRequestFetch (used internally by useFetch when calling relative URLs) will automatically forward cookies and headers from the client to your server routes, as explained in the useRequestFetch documentation. When your Nuxt server route makes a request to your Rust backend, you can manually forward the necessary authentication cookies or tokens. Direct API Access Alternative If you prefer to call your Rust API directly from the client in some cases, you can still use your custom useAPI composable with an absolute URL:

// Direct call to Rust backend (bypassing Nuxt server)
const { data: users } = await useAPI('<https://your-rust-api.com/users'>)

// Direct call to Rust backend (bypassing Nuxt server)
const { data: users } = await useAPI('<https://your-rust-api.com/users'>)

This approach is discussed in a Stack Overflow post which explains when to use the server folder versus direct API calls. Recommendation I recommend the BFF pattern (client → Nuxt server → Rust backend) for most scenarios, especially those involving authentication, as it gives you more control over the API interactions and keeps sensitive operations server-side. Does this clarify how to structure your API calls between the client, Nuxt server, and your Rust backend? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@255361968037167105> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

cruvexOP•2w ago

@kapa.ai What would my api plugin look like in the bff example?

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I'll show you what an API plugin would look like in the Backend-For-Frontend (BFF) pattern for your Nuxt application. Here's a complete example of how your API plugin could be structured:

// plugins/api.ts
export default defineNuxtPlugin((nuxtApp) => {
  // Create a custom fetch instance for server-side API calls
  const api = $fetch.create({
    // When using BFF pattern, baseURL is relative to your Nuxt app
    baseURL: '/api',
    // Automatically include credentials (cookies)
    credentials: 'include',
    // Handle common error scenarios
    async onResponseError({ response }) {
      // Handle authentication errors
      if (response.status === 401) {
        await nuxtApp.runWithContext(() => navigateTo('/login'))
      }
    }
  })

  // Expose to useNuxtApp().$api
  return {
    provide: {
      api
    }
  }
})

// plugins/api.ts
export default defineNuxtPlugin((nuxtApp) => {
  // Create a custom fetch instance for server-side API calls
  const api = $fetch.create({
    // When using BFF pattern, baseURL is relative to your Nuxt app
    baseURL: '/api',
    // Automatically include credentials (cookies)
    credentials: 'include',
    // Handle common error scenarios
    async onResponseError({ response }) {
      // Handle authentication errors
      if (response.status === 401) {
        await nuxtApp.runWithContext(() => navigateTo('/login'))
      }
    }
  })

  // Expose to useNuxtApp().$api
  return {
    provide: {
      api
    }
  }
})

This plugin creates a custom fetch instance that: 1. Sets the base URL to /api, which will target your Nuxt server routes 2. Includes credentials (cookies) with each request 3. Handles common error scenarios like authentication failures Then, you would create a composable to use this API client:

// composables/useAPI.ts
import type { UseFetchOptions } from 'nuxt/app'

export function useAPI<T>(
  url: string | (() => string),
  options?: UseFetchOptions<T>,
) {
  return useFetch(url, {
    ...options,
    $fetch: useNuxtApp().$api as typeof $fetch
  })
}

// composables/useAPI.ts
import type { UseFetchOptions } from 'nuxt/app'

export function useAPI<T>(
  url: string | (() => string),
  options?: UseFetchOptions<T>,
) {
  return useFetch(url, {
    ...options,
    $fetch: useNuxtApp().$api as typeof $fetch
  })
}

This approach is documented in Nuxt Docs: Custom useFetch. When using this setup: - Client components call your Nuxt server routes using useAPI('/users') - Your Nuxt server routes (server/api/users.ts) call your Rust backend For forwarding cookies from the client to your Rust backend through your Nuxt server routes, you would use useRequestFetch() in your server handlers as shown in the documentation on $fetch:

// server/api/users.ts
export default defineEventHandler(async (event) => {
  // This will properly forward cookies and headers to your Rust backend
  const requestFetch = useRequestFetch()
  const users = await requestFetch('<https://your-rust-api.com/users'>)
  
  return users
})

// server/api/users.ts
export default defineEventHandler(async (event) => {
  // This will properly forward cookies and headers to your Rust backend
  const requestFetch = useRequestFetch()
  const users = await requestFetch('<https://your-rust-api.com/users'>)
  
  return users
})

This ensures that authentication cookies are properly passed through the entire request chain. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@255361968037167105> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

cruvexOP•2w ago

@kapa.ai Another question. To authenticate users will click a button. This does a request to the backend which returns an oauth url. Nuxt will open a popup with this url for the user to authenticate in. THen when authentication is complete and the popup calls the callback (directly to rust backend) the backend will return html which sends a window.opener.postmessage message to my client side. Where do you recomend putting the window eventlisteren? Or do you see a better way to handle this scenario?

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I'll help you implement this OAuth flow in your Nuxt application. For handling the OAuth popup and postMessage communication, I recommend setting up an event listener in a Nuxt plugin. This ensures it's loaded early in your application lifecycle and is available globally. Here's how you could implement this:

// plugins/auth.ts
export default defineNuxtPlugin(() => {
  if (process.client) {
    // Only run on client-side
    window.addEventListener('message', (event) => {
      // Verify origin for security
      if (event.origin !== '<https://your-rust-backend-domain.com'>) {
        return;
      }
      
      // Process the authentication message
      if (event.data && event.data.type === 'authentication') {
        // Refresh session data
        const { fetch: refreshSession } = useUserSession()
        refreshSession()
        
        // Navigate to authenticated area or refresh current page
        navigateTo('/')
      }
    })
  }
  
  // Provide a method to open the OAuth popup
  return {
    provide: {
      openAuthPopup: async (oauthUrl) => {
        const width = 600
        const height = 700
        const left = window.screenX + (window.outerWidth - width) / 2
        const top = window.screenY + (window.outerHeight - height) / 2
        
        window.open(
          oauthUrl,
          'oauth-popup',
          `width=${width},height=${height},left=${left},top=${top}`
        )
      }
    }
  }
})

// plugins/auth.ts
export default defineNuxtPlugin(() => {
  if (process.client) {
    // Only run on client-side
    window.addEventListener('message', (event) => {
      // Verify origin for security
      if (event.origin !== '<https://your-rust-backend-domain.com'>) {
        return;
      }
      
      // Process the authentication message
      if (event.data && event.data.type === 'authentication') {
        // Refresh session data
        const { fetch: refreshSession } = useUserSession()
        refreshSession()
        
        // Navigate to authenticated area or refresh current page
        navigateTo('/')
      }
    })
  }
  
  // Provide a method to open the OAuth popup
  return {
    provide: {
      openAuthPopup: async (oauthUrl) => {
        const width = 600
        const height = 700
        const left = window.screenX + (window.outerWidth - width) / 2
        const top = window.screenY + (window.outerHeight - height) / 2
        
        window.open(
          oauthUrl,
          'oauth-popup',
          `width=${width},height=${height},left=${left},top=${top}`
        )
      }
    }
  }
})

Then in your login component:

<script setup>
const { $api, $openAuthPopup } = useNuxtApp()

const login = async () => {
  try {
    // Get OAuth URL from your Rust backend
    const { oauthUrl } = await $api('/api/auth/oauth-url')
    
    // Open the popup with the OAuth URL
    $openAuthPopup(oauthUrl)
  } catch (error) {
    console.error('Failed to get OAuth URL', error)
  }
}
</script>
<template>
  <button @click="login">Login with OAuth</button>
</template>

<script setup>
const { $api, $openAuthPopup } = useNuxtApp()

const login = async () => {
  try {
    // Get OAuth URL from your Rust backend
    const { oauthUrl } = await $api('/api/auth/oauth-url')
    
    // Open the popup with the OAuth URL
    $openAuthPopup(oauthUrl)
  } catch (error) {
    console.error('Failed to get OAuth URL', error)
  }
}
</script>
<template>
  <button @click="login">Login with OAuth</button>
</template>

This approach is similar to how the navigateTo utility works with its open option for handling window opening, as shown in the navigateTo documentation. For your server route that gets the OAuth URL:

// server/api/auth/oauth-url.ts
export default defineEventHandler(async (event) => {
  // Call your Rust backend to get the OAuth URL
  const response = await $fetch('<https://your-rust-backend.com/auth/oauth-url'>)
  return response
})

// server/api/auth/oauth-url.ts
export default defineEventHandler(async (event) => {
  // Call your Rust backend to get the OAuth URL
  const response = await $fetch('<https://your-rust-backend.com/auth/oauth-url'>)
  return response
})

This pattern follows the authentication flow described in the Nuxt sessions and authentication documentation, but adapts it for your specific OAuth popup scenario. After authentication completes and your session is established, you can use the useUserSession composable from nuxt-auth-utils to manage the authenticated state throughout your application. Would you like me to elaborate on any specific part of this implementation? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@255361968037167105> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

cruvexOP•2w ago

@kapa.ai Could you show me what the server route for /api/auth/oauth-url looks like? This server route should proxy the request to my rust backend and this request returns a cookie which is set on the server side now I assume? But when the user opens the popup and discord does the request to the callback on my rust backend this cookie is not returned. Because it is only set on the server side I assume?

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I'll help you understand how to handle cookies in your server route when proxying requests to your Rust backend. Server Route for OAuth URL Here's how your /api/auth/oauth-url server route could look:

// server/api/auth/oauth-url.ts
export default defineEventHandler(async (event) => {
  // Get the OAuth URL from your Rust backend
  const response = await $fetch('<https://your-rust-backend.com/auth/oauth-url',> {
    // Forward any cookies/headers from the client request
    headers: useRequestHeaders(['cookie']),
    // This is important to handle the response properly
    onResponse({ response }) {
      // Get any cookies set by your Rust backend
      const cookies = response.headers.getSetCookie();
      
      // Forward these cookies to the client
      if (cookies.length) {
        cookies.forEach((cookie) => {
          appendResponseHeader(event, 'set-cookie', cookie);
        });
      }
    }
  });
  
  return response;
});

// server/api/auth/oauth-url.ts
export default defineEventHandler(async (event) => {
  // Get the OAuth URL from your Rust backend
  const response = await $fetch('<https://your-rust-backend.com/auth/oauth-url',> {
    // Forward any cookies/headers from the client request
    headers: useRequestHeaders(['cookie']),
    // This is important to handle the response properly
    onResponse({ response }) {
      // Get any cookies set by your Rust backend
      const cookies = response.headers.getSetCookie();
      
      // Forward these cookies to the client
      if (cookies.length) {
        cookies.forEach((cookie) => {
          appendResponseHeader(event, 'set-cookie', cookie);
        });
      }
    }
  });
  
  return response;
});

The Cookie Problem You've identified a key issue: when your Rust backend sets cookies during the OAuth URL request, these cookies need to be properly forwarded to the client browser. There are two important aspects to understand: 1. Cookie Forwarding: By default, cookies set by your Rust backend in response to a server-side API call won't automatically be forwarded to the client during SSR. This is documented behavior in Nuxt: Pass cookies from server-side API calls on SSR response. 2. Cookie Availability: For the OAuth callback to work properly, the cookies need to be available in the browser when the popup makes requests back to your Rust backend. Solution The solution is to explicitly forward cookies from your Rust backend to the client browser using the appendResponseHeader method as shown in the code above. This approach is demonstrated in a Stack Overflow answer that solves a similar problem. When the user opens the popup for OAuth authentication, the browser will include these forwarded cookies in requests to your Rust backend's callback endpoint, allowing your backend to maintain the session properly. Alternative Approach If you're still having issues with cookies, you could consider passing a state parameter in the OAuth flow:

// server/api/auth/oauth-url.ts
export default defineEventHandler(async (event) => {
  // Generate a random state parameter
  const state = crypto.randomUUID();
  
  // Store this state in a server-side session
  setCookie(event, 'oauth_state', state, {
    httpOnly: true,
    path: '/',
    maxAge: 3600 // 1 hour
  });
  
  // Get OAuth URL with state parameter
  const response = await $fetch(`<https://your-rust-backend.com/auth/oauth-url?state=${state}`,> {
    headers: useRequestHeaders(['cookie'])
  });
  
  return response;
});

// server/api/auth/oauth-url.ts
export default defineEventHandler(async (event) => {
  // Generate a random state parameter
  const state = crypto.randomUUID();
  
  // Store this state in a server-side session
  setCookie(event, 'oauth_state', state, {
    httpOnly: true,
    path: '/',
    maxAge: 3600 // 1 hour
  });
  
  // Get OAuth URL with state parameter
  const response = await $fetch(`<https://your-rust-backend.com/auth/oauth-url?state=${state}`,> {
    headers: useRequestHeaders(['cookie'])
  });
  
  return response;
});

This way, when the OAuth provider redirects back to your callback, you can verify the state parameter to ensure the request is legitimate, even if cookies aren't perfectly preserved across the popup flow. Does this help clarify how to handle cookies in your OAuth flow? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@255361968037167105> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

cruvexOP•2w ago

@kapa.ai How exactly does the refreshsession method work in nuxt auth utils?

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the knowledge sources provided, I can explain how the refreshSession method works in Nuxt Auth Utils. The refreshSession method (also referred to as fetch in some contexts) is part of the useUserSession composable provided by the nuxt-auth-utils module. Its purpose is to refresh the client-side session data after changes have been made to the session cookies on the server side. When you authenticate a user through an API call that sets cookies (like in a login process), the session cookies are set on the server side, but the client-side session state in your Vue components doesn't automatically update. The refreshSession method fetches the latest session data from the server and updates the client-side state. Here's an example of how it's used in a login flow:

<script setup lang="ts">
const { loggedIn, user, fetch: refreshSession } = useUserSession()
const credentials = reactive({
  email: '',
  password: '',
})
async function login() {
  $fetch('/api/login', {
    method: 'POST',
    body: credentials
  })
  .then(async () => {
    // Refresh the session on client-side and redirect to the home page
    await refreshSession()
    await navigateTo('/')
  })
  .catch(() => alert('Bad credentials'))
}
</script>

<script setup lang="ts">
const { loggedIn, user, fetch: refreshSession } = useUserSession()
const credentials = reactive({
  email: '',
  password: '',
})
async function login() {
  $fetch('/api/login', {
    method: 'POST',
    body: credentials
  })
  .then(async () => {
    // Refresh the session on client-side and redirect to the home page
    await refreshSession()
    await navigateTo('/')
  })
  .catch(() => alert('Bad credentials'))
}
</script>

As shown in the Nuxt Docs: Sessions and Authentication, after a successful login API call that sets the session cookie, you need to call refreshSession() to update the client-side session state before redirecting the user. This pattern ensures that your client-side application has the most up-to-date session information after authentication operations, maintaining consistency between server and client state. Would you like me to explain any other aspects of session management in Nuxt? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@255361968037167105> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

cruvexOP•2w ago

@kapa.ai Is it an idea to keep my rust backend cookie on the server side for server side -> rust backend auth and use the auth utils cookie for client side -> server side auth?

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on your question about managing cookies between your client, Nuxt server, and Rust backend, I can provide some guidance on this authentication approach. Yes, using separate cookie mechanisms for different parts of your authentication flow is a valid approach. Here's how this could work: 1. Server-side → Rust backend: Keep your Rust backend's authentication cookie on the server side. When your Nuxt server routes make requests to your Rust backend, they can forward this cookie. 2. Client-side → Nuxt server: Use nuxt-auth-utils to manage a separate session cookie for authenticating client requests to your Nuxt server. This approach has several benefits: - It provides a clear separation of concerns - Your Rust backend's authentication details remain protected on the server - The client only needs to know about its session with the Nuxt server Here's how you might implement this:

// server/api/some-data.ts
export default defineEventHandler(async (event) => {
  // Check if the client is authenticated with nuxt-auth-utils
  const { user } = await getUserSession(event)
  if (!user) {
    throw createError({ statusCode: 401, message: 'Unauthorized' })
  }
  
  // Make authenticated request to Rust backend using the server-side cookie
  const data = await $fetch('<https://your-rust-backend.com/protected-data',> {
    headers: {
      // Forward any necessary headers but use server-side cookie
      cookie: getRequestHeaders(event).cookie
    }
  })
  
  return data
})

// server/api/some-data.ts
export default defineEventHandler(async (event) => {
  // Check if the client is authenticated with nuxt-auth-utils
  const { user } = await getUserSession(event)
  if (!user) {
    throw createError({ statusCode: 401, message: 'Unauthorized' })
  }
  
  // Make authenticated request to Rust backend using the server-side cookie
  const data = await $fetch('<https://your-rust-backend.com/protected-data',> {
    headers: {
      // Forward any necessary headers but use server-side cookie
      cookie: getRequestHeaders(event).cookie
    }
  })
  
  return data
})

When handling cookies between server and client, be aware that cookies set by your Rust backend won't automatically be forwarded to the client during SSR. As mentioned in the documentation on $fetch, you need to manually pass them if needed. For refreshing the client-side session after authentication changes, you would use the refreshSession method from useUserSession() as we discussed earlier. This dual-cookie approach is similar to the pattern described in Stack Overflow posts about cookie handling in Nuxt, where different cookies are used for different parts of the application. Would you like me to elaborate on any specific aspect of this approach? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@255361968037167105> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

cruvexOP•2w ago

@kapa.ai Is it possible to create a session cookie but not actually login. Im looking at the option of creating the session id on the client side then sending this to the server and using this for my backend authentication. Ofcourse just setting this cookie shouldnt actually authenticate the user. The callback would have to actually authenticate this cookie session id on the backend

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Yes, it's absolutely possible to create a session cookie without automatically authenticating the user. This approach is common for implementing custom authentication flows in Nuxt applications. Creating a Session Cookie Without Authentication You can use useCookie to create a session identifier on the client side:

// Create a session ID cookie without authentication
const sessionId = useCookie('session_id', {
  // Cookie options
  maxAge: 3600, // 1 hour expiration
  secure: process.env.NODE_ENV === 'production',
  sameSite: 'lax'
})

// Generate a random session ID if it doesn't exist
if (!sessionId.value) {
  sessionId.value = crypto.randomUUID() // or any other ID generation method
}

// Create a session ID cookie without authentication
const sessionId = useCookie('session_id', {
  // Cookie options
  maxAge: 3600, // 1 hour expiration
  secure: process.env.NODE_ENV === 'production',
  sameSite: 'lax'
})

// Generate a random session ID if it doesn't exist
if (!sessionId.value) {
  sessionId.value = crypto.randomUUID() // or any other ID generation method
}

This creates a cookie with a session ID, but it doesn't authenticate the user. The cookie is just a way to maintain state between requests. Server-Side Verification On your server routes, you would check this session ID against your Rust backend to determine if it's associated with an authenticated session:

// server/api/protected-data.ts
export default defineEventHandler(async (event) => {
  // Get the session ID from the cookie
  const sessionId = getCookie(event, 'session_id')
  
  if (!sessionId) {
    throw createError({ statusCode: 401, message: 'No session ID provided' })
  }
  
  // Verify with your Rust backend if this session is authenticated
  const authResponse = await $fetch('<https://your-rust-backend.com/verify-session',> {
    method: 'POST',
    body: { sessionId }
  })
  
  if (!authResponse.authenticated) {
    throw createError({ statusCode: 401, message: 'Unauthorized session' })
  }
  
  // Session is valid, proceed with the request
  // ...
})

// server/api/protected-data.ts
export default defineEventHandler(async (event) => {
  // Get the session ID from the cookie
  const sessionId = getCookie(event, 'session_id')
  
  if (!sessionId) {
    throw createError({ statusCode: 401, message: 'No session ID provided' })
  }
  
  // Verify with your Rust backend if this session is authenticated
  const authResponse = await $fetch('<https://your-rust-backend.com/verify-session',> {
    method: 'POST',
    body: { sessionId }
  })
  
  if (!authResponse.authenticated) {
    throw createError({ statusCode: 401, message: 'Unauthorized session' })
  }
  
  // Session is valid, proceed with the request
  // ...
})

OAuth Callback Flow For your OAuth callback scenario, you could: 1. Create the session ID cookie before initiating the OAuth flow 2. Pass this session ID as state parameter to your OAuth provider 3. When the callback happens, your Rust backend verifies the state parameter 4. Your backend associates the authenticated user with this session ID 5. Future requests with this session ID are now authenticated This approach is similar to how session management works in many authentication systems, as described in the Nuxt documentation on sessions and authentication. Cookie Options When creating your session cookie, you can control various aspects using the options parameter of useCookie:

const sessionId = useCookie('session_id', {
  maxAge: 86400, // 24 hours in seconds
  httpOnly: true, // Not accessible via JavaScript (for server cookies)
  secure: true, // HTTPS only
  sameSite: 'strict' // Restrict cross-site usage
})

const sessionId = useCookie('session_id', {
  maxAge: 86400, // 24 hours in seconds
  httpOnly: true, // Not accessible via JavaScript (for server cookies)
  secure: true, // HTTPS only
  sameSite: 'strict' // Restrict cross-site usage
})

These options are documented in the useCookie API reference. Does this approach align with what you're trying to implement for your authentication flow? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

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cruvexOP•2w ago

@kapa.ai But when I use useCookie to set the cookie manually this will not take into account my nuxt auth utils cookie settings right?

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- You're correct. When you use useCookie directly to set a cookie manually, it won't automatically inherit or use the cookie settings configured in nuxt-auth-utils. The nuxt-auth-utils module uses its own internal mechanisms to create and manage session cookies with specific security settings: 1. It uses sealed (encrypted) cookies for session data 2. It applies specific security settings like httpOnly, secure, etc. 3. It uses the NUXT_SESSION_PASSWORD environment variable for encryption When you create a cookie manually with useCookie, you'll need to specify all the security settings yourself:

const sessionId = useCookie('session_id', {
  maxAge: 3600,
  secure: true,
  sameSite: 'lax',
  // Other settings you need
})

const sessionId = useCookie('session_id', {
  maxAge: 3600,
  secure: true,
  sameSite: 'lax',
  // Other settings you need
})

As shown in the useCookie documentation, you can configure various options like maxAge, expires, httpOnly, secure, etc. If you want to maintain consistency with your nuxt-auth-utils cookies, you would need to manually apply similar settings to your custom cookies. However, you won't get the automatic encryption that nuxt-auth-utils provides unless you implement that yourself. For your approach of creating a session ID that gets validated later, this might be acceptable, since the session ID itself doesn't contain sensitive information - it's just an identifier that your backend will validate. Would you like me to explain how to implement specific security settings for your custom cookie to make it more secure? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

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cruvexOP•2w ago

@kapa.ai Ok I found that I can just do setUserSession(event, {}) and this will create a session with nuxt-auth-utils. But as I undrestand correctly loggedIn from useUserSession() will only be true if the user object in the session is truthy so this will not actually log in the user which is what I wanted

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- You're correct! When using nuxt-auth-utils, the loggedIn value from useUserSession() is determined by whether the user object in the session is truthy. Here's how it works: 1. When you call setUserSession(event, {}) with an empty object, you're creating a session cookie, but since there's no user property in that object, loggedIn will be false. 2. The useUserSession() composable returns several values including loggedIn, which is a computed property that checks if the user property exists in the session. This behavior is exactly what you want for your use case - creating a session ID without actually authenticating the user. Your Rust backend can later validate this session and then you can update it to include a user object when authentication is complete. When you want to mark the user as authenticated after your OAuth callback completes, you would update the session with a user object:

// After successful authentication in your callback handler
await setUserSession(event, {
  user: {
    // User details here
    id: userId,
    name: userName,
    // etc.
  }
})

// After successful authentication in your callback handler
await setUserSession(event, {
  user: {
    // User details here
    id: userId,
    name: userName,
    // etc.
  }
})

At this point, loggedIn from useUserSession() would become true because the session now contains a user object. This approach aligns perfectly with your goal of creating a session without automatically authenticating the user until your backend validates the authentication. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

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cruvexOP•2w ago

@kapa.ai what is your opinion on this auth flow? Is this idiomatic or acceptable? and do you see any improvements to be made

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the authentication flow you've described throughout our conversation, I think you're on the right track with a solid approach. Let me share my thoughts on your authentication flow: Your Authentication Flow From what I understand, your flow involves: 1. Creating a session ID using nuxt-auth-utils without authenticating the user initially 2. Using this session for OAuth authentication via a popup window 3. Having your Rust backend validate the authentication and associate it with the session 4. Using refreshSession() to update the client-side state after authentication Assessment This is a perfectly acceptable and well-structured approach for Nuxt applications. It follows several best practices: 1. Separation of concerns: You're keeping authentication logic on the server side 2. Security: You're using nuxt-auth-utils for secure, encrypted cookies 3. Clean architecture: You're using the BFF pattern to proxy requests to your Rust backend The approach of creating a session without authentication and then validating it later is a common pattern in OAuth flows, especially when dealing with popup windows and callbacks. Potential Improvements Here are a few suggestions that might enhance your implementation: 1. Error handling: Make sure to implement comprehensive error handling for cases where the OAuth flow is interrupted or fails. 2. Session expiration: Consider implementing a timeout for sessions that are created but never authenticated. 3. CSRF protection: If not already included in your Rust backend, consider adding a CSRF token to protect against cross-site request forgery attacks. 4. Progressive enhancement: Consider what happens if JavaScript is disabled - can you provide a fallback authentication method? 5. Refresh tokens: If your Rust backend supports refresh tokens, consider implementing a mechanism to refresh authentication without requiring the user to log in again. Conclusion Your approach is idiomatic for Nuxt applications and shows a good understanding of authentication best practices. The use of nuxt-auth-utils for session management combined with your Rust backend for authentication logic creates a clean separation of concerns. The pattern of creating a session first and authenticating it later is particularly well-suited for OAuth flows with popups, as it helps maintain state across different browser contexts. Would you like me to elaborate on any specific aspect of these improvements? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

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cruvexOP•2w ago

@kapa.ai Never mind. it seems that every time I call setUserSession it also updates the cookie so when I try to update my session when the users actually logs in this will invalidate the session also

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I understand your concern about setUserSession updating the cookie each time it's called. Let me clarify how this works in nuxt-auth-utils. When you call setUserSession, it does indeed update the entire session cookie with the new data you provide. This is by design - it replaces the previous session data rather than merging it. This behavior can cause issues if you're trying to maintain certain aspects of the session while updating others. For your authentication flow, there are a few approaches you could take: 1. Store the session ID separately from the authentication state:

   // When creating initial session
   const sessionId = crypto.randomUUID()
   await setUserSession(event, { sessionId })
   
   // When authenticating later
   const { sessionId } = await getUserSession(event)
   await setUserSession(event, { 
     sessionId, // preserve the original sessionId
     user: { /* user data */ } 
   })

   // When creating initial session
   const sessionId = crypto.randomUUID()
   await setUserSession(event, { sessionId })
   
   // When authenticating later
   const { sessionId } = await getUserSession(event)
   await setUserSession(event, { 
     sessionId, // preserve the original sessionId
     user: { /* user data */ } 
   })

2. Use useCookie for the session ID and nuxt-auth-utils only for the authenticated user:

   // For session ID
   const sessionId = useCookie('session_id')
   
   // For authentication
   await setUserSession(event, { user: { /* user data */ } })

   // For session ID
   const sessionId = useCookie('session_id')
   
   // For authentication
   await setUserSession(event, { user: { /* user data */ } })

3. Retrieve the full session before updating it:

   // When authenticating
   const session = await getUserSession(event)
   await setUserSession(event, { 
     ...session, // preserve all existing session data
     user: { /* user data */ } 
   })

   // When authenticating
   const session = await getUserSession(event)
   await setUserSession(event, { 
     ...session, // preserve all existing session data
     user: { /* user data */ } 
   })

The third approach is generally the most reliable when working with nuxt-auth-utils, as it ensures you don't lose any existing session data when updating the user information. Would you like me to elaborate on any of these approaches for your specific authentication flow? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

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cruvexOP•6d ago

@kapa.ai Does the following warning trigger a reroute? [Vue Router warn]: No match found for location with path

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the knowledge sources provided, the "[Vue Router warn]: No match found for location with path" warning does not trigger a reroute in Nuxt applications. This is simply a warning message that indicates Vue Router couldn't find a matching route for a requested path. According to several GitHub issues, this warning commonly appears in these scenarios: 1. When there are open tabs or service workers requesting routes that don't exist in your application (GitHub Issue #29042) 2. During development with Vite, when requests are made to paths like /_nuxt/__vite_ping (GitHub Issue #31327) 3. When webpack HMR (Hot Module Replacement) requests are made to a Vite server (GitHub Issue #31327) 4. When requests are made to static resources that were previously referenced but deleted (GitHub Issue #29042) The warning is informational and simply tells you that Vue Router is returning a 404 for that path. It doesn't cause any navigation or rerouting in your application - it's just letting you know that a route was requested but not found. If you're seeing this warning frequently, you can usually ignore it as it doesn't affect your application's functionality. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

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cruvexOP•6d ago

@kapa.ai as you know by now I have a rust backend. When my nuxt server route calls my backend api there is a proxy set up in my nuxt.config.ts like this: routeRules: { '/backend-api/': { proxy: { to: process.env.BACKEND_API_URL + '/', fetchOptions: { ignoreResponseError: true, } } } }, But when my backend is not running I keep getting these warnings: [Vue Router warn]: No match found for location with path And my app seems to get stuck in an infinite loop

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I can see the issue you're experiencing with your proxy configuration. The warnings and infinite loop are related to how Nuxt handles proxy errors when the backend is unavailable. The Problem When your Rust backend is not running, the proxy attempts to forward requests but fails. This can cause: 1. The "[Vue Router warn]: No match found for location with path" warnings 2. An infinite loop of requests This is a known issue with Nuxt's proxy functionality, especially in development mode with Node.js 19+ as mentioned in this Stack Overflow post. Solution There are a few ways to fix this: 1. Add Connection Headers The most direct fix is to modify your proxy configuration to include the Connection: keep-alive header:

routeRules: {
    '/backend-api/**': {
        proxy: {
            to: process.env.BACKEND_API_URL + '/**',
            fetchOptions: {
                ignoreResponseError: true,
            },
            headers: {
                Connection: 'keep-alive'
            }
        }
    }
},

routeRules: {
    '/backend-api/**': {
        proxy: {
            to: process.env.BACKEND_API_URL + '/**',
            fetchOptions: {
                ignoreResponseError: true,
            },
            headers: {
                Connection: 'keep-alive'
            }
        }
    }
},

This solution was confirmed to work in this Stack Overflow answer. 2. Use a Nitro Proxy API Endpoint An alternative approach is to create a server handler that uses proxyRequest:

// server/api/[...].ts
import { joinURL } from 'ufo';
export default defineEventHandler(async (event) => {
    const config = useRuntimeConfig();
    const path = event.path.replace(/^\/api\//, '');
    const target = joinURL(config.backendUrl, path);
    
    try {
        return await proxyRequest(event, target, {
            headers: {
                Connection: 'keep-alive'
            }
        });
    } catch (error) {
        // Handle error gracefully
        console.error(`Failed to proxy request to ${target}`, error);
        return { error: 'Backend service unavailable', status: 503 };
    }
});

// server/api/[...].ts
import { joinURL } from 'ufo';
export default defineEventHandler(async (event) => {
    const config = useRuntimeConfig();
    const path = event.path.replace(/^\/api\//, '');
    const target = joinURL(config.backendUrl, path);
    
    try {
        return await proxyRequest(event, target, {
            headers: {
                Connection: 'keep-alive'
            }
        });
    } catch (error) {
        // Handle error gracefully
        console.error(`Failed to proxy request to ${target}`, error);
        return { error: 'Backend service unavailable', status: 503 };
    }
});

This gives you more control over error handling and prevents infinite loops. 3. Update Your Runtime Config Make sure your runtime config is properly set up:

// nuxt.config.ts
export default defineNuxtConfig({
  runtimeConfig: {
    backendUrl: '', // Default empty, will be set from env var
    // ...
  },
  // ...
})

// nuxt.config.ts
export default defineNuxtConfig({
  runtimeConfig: {
    backendUrl: '', // Default empty, will be set from env var
    // ...
  },
  // ...
})

Then set the environment variable NUXT_BACKEND_URL to your backend URL. This approach is recommended in this GitHub issue. Preventing Infinite Loops To specifically address the infinite loop issue, make sure your error handling doesn't trigger additional requests. In your components that make API calls, add proper error handling:

const { data, error } = await useFetch('/api/your-endpoint', {
  onResponseError(error) {
    // Handle error but don't trigger additional requests
    console.error('API error:', error)
  }
})

const { data, error } = await useFetch('/api/your-endpoint', {
  onResponseError(error) {
    // Handle error but don't trigger additional requests
    console.error('API error:', error)
  }
})

Would you like me to provide more specific guidance on any of these solutions? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

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cruvexOP•6d ago

@kapa.ai When using nitros proxyRequest on my server route to proxy the request to my backend how do I pass cookies?

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I'll explain how to pass cookies when using Nitro's proxyRequest to proxy requests from your Nuxt server to your backend. When using proxyRequest, cookies aren't automatically forwarded by default. You need to explicitly handle cookie forwarding in both directions: 1. Forward cookies from client to backend:

// server/api/[...].ts
export default defineEventHandler((event) => {
  const { API_URI } = useRuntimeConfig();
  const path = event.path.replace(/^\/api\//, '');
  const url = joinURL(API_URI, path);

  return proxyRequest(event, url, {
    // Forward cookies from client to backend
    headers: {
      cookie: getRequestHeaders(event).cookie
    }
  });
});

// server/api/[...].ts
export default defineEventHandler((event) => {
  const { API_URI } = useRuntimeConfig();
  const path = event.path.replace(/^\/api\//, '');
  const url = joinURL(API_URI, path);

  return proxyRequest(event, url, {
    // Forward cookies from client to backend
    headers: {
      cookie: getRequestHeaders(event).cookie
    }
  });
});

2. Forward cookies from backend to client:

// server/api/[...].ts
export default defineEventHandler((event) => {
  const { API_URI } = useRuntimeConfig();
  const path = event.path.replace(/^\/api\//, '');
  const url = joinURL(API_URI, path);

  return proxyRequest(event, url, {
    headers: {
      cookie: getRequestHeaders(event).cookie
    },
    // Forward cookies from backend to client
    onResponse(event, response) {
      const cookies = response.headers.getSetCookie();
      
      if (cookies.length) {
        cookies.forEach((cookie) => {
          appendResponseHeader(event, 'set-cookie', cookie);
        });
      }
    }
  });
});

// server/api/[...].ts
export default defineEventHandler((event) => {
  const { API_URI } = useRuntimeConfig();
  const path = event.path.replace(/^\/api\//, '');
  const url = joinURL(API_URI, path);

  return proxyRequest(event, url, {
    headers: {
      cookie: getRequestHeaders(event).cookie
    },
    // Forward cookies from backend to client
    onResponse(event, response) {
      const cookies = response.headers.getSetCookie();
      
      if (cookies.length) {
        cookies.forEach((cookie) => {
          appendResponseHeader(event, 'set-cookie', cookie);
        });
      }
    }
  });
});

This approach is demonstrated in a Stack Overflow answer that solved a similar cookie forwarding issue. For server-side rendering (SSR), it's important to note that cookies set by your backend won't automatically be forwarded to the client browser. You need to explicitly forward them using appendResponseHeader as shown above. This is documented behavior in Nuxt's data fetching documentation. If you're experiencing issues with Node.js 19+, you might also need to set the Connection header to keep-alive as mentioned in this Stack Overflow post:

return proxyRequest(event, url, {
  headers: {
    cookie: getRequestHeaders(event).cookie,
    Connection: 'keep-alive'
  },
  // Rest of your code...
});

return proxyRequest(event, url, {
  headers: {
    cookie: getRequestHeaders(event).cookie,
    Connection: 'keep-alive'
  },
  // Rest of your code...
});

This approach ensures cookies are properly passed in both directions between your client, Nuxt server, and backend. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

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cruvexOP•6d ago

@kapa.ai in my devtools I see my session cookie is present but I dont see it when printing getRequestHeaders(event) or getRequestHeaders(event).cookie

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I can help you understand why your session cookie might not be visible when using getRequestHeaders(event) despite being present in your browser devtools. This is a known issue in Nuxt when working with cookies. There are a few potential reasons for this behavior: 1. Cookie visibility scope: Some cookies might be set with the httpOnly flag, which makes them inaccessible to JavaScript but still visible in devtools. However, these should still be accessible server-side with getRequestHeaders. 2. Cookie forwarding issue: According to the Nuxt documentation on passing headers and cookies, there are specific behaviors around cookie forwarding during SSR. 3. Initial cookie value writing: There was a recent fix in Nuxt (PR #31517) that addresses an issue where initial cookie values weren't being properly written if they were different from document.cookie. Here are some solutions to try: Solution 1: Use useRequestHeaders with specific cookie name

// Instead of getRequestHeaders
const headers = useRequestHeaders(['cookie'])
console.log('Cookie headers:', headers)

// If you need a specific cookie
const cookieHeader = headers.cookie
console.log('Cookie header:', cookieHeader)

// Instead of getRequestHeaders
const headers = useRequestHeaders(['cookie'])
console.log('Cookie headers:', headers)

// If you need a specific cookie
const cookieHeader = headers.cookie
console.log('Cookie header:', cookieHeader)

This approach is documented in the useRequestHeaders API documentation. Solution 2: Use getCookie directly

// If you know the specific cookie name
const myCookie = getCookie(event, 'your-cookie-name')
console.log('My cookie:', myCookie)

// If you know the specific cookie name
const myCookie = getCookie(event, 'your-cookie-name')
console.log('My cookie:', myCookie)

Solution 3: Parse cookies manually If you need to debug exactly what's happening with the cookies:

const headers = getRequestHeaders(event)
console.log('All headers:', headers)

if (headers.cookie) {
  const cookies = headers.cookie.split(';').map(c => c.trim())
  console.log('Parsed cookies:', cookies)
}

const headers = getRequestHeaders(event)
console.log('All headers:', headers)

if (headers.cookie) {
  const cookies = headers.cookie.split(';').map(c => c.trim())
  console.log('Parsed cookies:', cookies)
}

This approach is similar to what's shown in a Stack Overflow post about handling cookies in Nuxt. If you're still having issues, it could be related to how the cookie is being set. Make sure your cookie is being set with the correct domain and path values that match your current request. Would you like me to help you debug this further with a more specific approach based on your setup? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

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cruvexOP•6d ago

@kapa.ai it seems my request is only being executed on the server side where there is no cookie present

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on your observation that your request is only being executed on the server side where no cookie is present, this is a common issue in Nuxt's server-side rendering (SSR) flow. When a request is made during SSR, cookies from the browser aren't automatically available to your server-side code unless you explicitly forward them. This is a security feature to prevent potential issues like Server-Side Request Forgery (SSRF). Here are a few approaches to solve this: 1. Use useRequestFetch to forward cookies The useRequestFetch composable is specifically designed to forward cookies and headers from the client to your server routes:

// In your component or page
const requestFetch = useRequestFetch()
const { data } = await useAsyncData(() => requestFetch('/your-api-endpoint'))

// In your component or page
const requestFetch = useRequestFetch()
const { data } = await useAsyncData(() => requestFetch('/your-api-endpoint'))

As documented in useRequestFetch, this will automatically forward the user's headers and cookies to your API endpoint during SSR. 2. Use useFetch with relative URLs When using useFetch with a relative URL, Nuxt automatically uses useRequestFetch under the hood:

// This will automatically forward cookies during SSR
const { data } = await useFetch('/your-api-endpoint')

// This will automatically forward cookies during SSR
const { data } = await useFetch('/your-api-endpoint')

3. Check if you're using custom fetch instances If you're using a custom fetch instance with useFetch, you need to ensure it's configured to forward cookies:

// Make sure your custom fetch forwards cookies
const { data } = await useFetch('/your-api-endpoint', {
  $fetch: useRequestFetch()
})

// Make sure your custom fetch forwards cookies
const { data } = await useFetch('/your-api-endpoint', {
  $fetch: useRequestFetch()
})

This issue was discussed in GitHub issue #27996, where it was found that defining a custom $fetch within useFetch() doesn't automatically pass cookies on SSR. 4. Verify your server route is accessing cookies correctly In your server route, make sure you're accessing cookies correctly:

// server/api/your-endpoint.ts
export default defineEventHandler((event) => {
  // This gets a specific cookie
  const myCookie = getCookie(event, 'cookie-name')
  
  // This gets all cookies
  const cookies = parseCookies(event)
  
  console.log('Cookies:', cookies)
  // Rest of your code...
})

// server/api/your-endpoint.ts
export default defineEventHandler((event) => {
  // This gets a specific cookie
  const myCookie = getCookie(event, 'cookie-name')
  
  // This gets all cookies
  const cookies = parseCookies(event)
  
  console.log('Cookies:', cookies)
  // Rest of your code...
})

If you're still having issues, it might help to examine the specific flow of your application to identify where the cookie handling is breaking down. Kapa AI: I've provided information about handling cookies in Nuxt's SSR flow. Would you like me to help troubleshoot your specific implementation further? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

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cruvexOP•6d ago

@kapa.ai Im using the following plugin: export default defineNuxtPlugin((nuxtApp) => { const api = $fetch.create({ baseURL: '/api', credentials: 'include', }) return { provide: { api } } }) And composable: import type { UseFetchOptions } from "#app"; export function useAPI<T>( url: string | (() => string), options?: UseFetchOptions<T>, ) { return useFetch(url, { ...options, $fetch: useNuxtApp().$api }) } To call my backend. Do I have to make any changes here?

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on your code for the API plugin and composable, I can see you're setting up a custom fetch utility for your Nuxt application. However, there's an important issue with your current implementation that needs to be addressed. The Cookie Forwarding Issue When using a custom $fetch instance with useFetch during server-side rendering (SSR), cookies are not automatically forwarded from the client to your backend. This is a known limitation in Nuxt as documented in several sources:

"When defining $fetch param within useFetch() options Nuxt does not forward cookies on SSR" - GitHub Issue #27996

The Solution You need to modify your composable to use useRequestFetch() when creating your custom API client:

// composables/useAPI.ts
import type { UseFetchOptions } from "#app";

export function useAPI<T>(
    url: string | (() => string),
    options?: UseFetchOptions<T>,
) {
    // Use useRequestFetch to properly forward cookies during SSR
    const requestFetch = useRequestFetch()
    
    return useFetch(url, {
        ...options,
        $fetch: process.server ? requestFetch : useNuxtApp().$api
    })
}

// composables/useAPI.ts
import type { UseFetchOptions } from "#app";

export function useAPI<T>(
    url: string | (() => string),
    options?: UseFetchOptions<T>,
) {
    // Use useRequestFetch to properly forward cookies during SSR
    const requestFetch = useRequestFetch()
    
    return useFetch(url, {
        ...options,
        $fetch: process.server ? requestFetch : useNuxtApp().$api
    })
}

This approach is documented in the useRequestFetch documentation, which explains:

"You can use useRequestFetch to forward the request context and headers when making server-side fetch requests."

Alternative Approach If you prefer to keep your plugin structure, you could modify your plugin to use useRequestFetch() directly:

// plugins/api.ts
export default defineNuxtPlugin((nuxtApp) => {
    // Use the standard $fetch on client side
    const clientFetch = $fetch.create({
        baseURL: '/api',
        credentials: 'include',
    })
    
    // Use useRequestFetch on server side
    const api = process.server ? useRequestFetch() : clientFetch
    
    return {
        provide: {
            api
        }
    }
})

// plugins/api.ts
export default defineNuxtPlugin((nuxtApp) => {
    // Use the standard $fetch on client side
    const clientFetch = $fetch.create({
        baseURL: '/api',
        credentials: 'include',
    })
    
    // Use useRequestFetch on server side
    const api = process.server ? useRequestFetch() : clientFetch
    
    return {
        provide: {
            api
        }
    }
})

This ensures that cookies are properly forwarded during SSR while maintaining your custom fetch configuration for client-side requests. With either of these changes, your custom fetch utility should properly forward cookies from the client to your backend during server-side rendering. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@255361968037167105> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

cruvexOP•6d ago

@kapa.ai changing either of these things somehow manages to create an infinite loop again

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I understand you're experiencing an infinite loop issue after implementing the suggested changes to your API plugin or composable. This is a known issue that can occur when working with useRequestFetch in certain scenarios. The infinite loop might be happening because useRequestFetch is being called during the rendering process, which can trigger additional requests that cause the component to re-render, creating a cycle. Here are some potential solutions to break this loop: 1. Use a key with useFetch Adding a static key to your useFetch call can prevent duplicate requests:

export function useAPI<T>(
    url: string | (() => string),
    options?: UseFetchOptions<T>,
) {
    // Generate a stable key based on the URL
    const key = typeof url === 'function' ? url() : url
    
    return useFetch(url, {
        key, // Add a stable key
        ...options,
        $fetch: useNuxtApp().$api
    })
}

export function useAPI<T>(
    url: string | (() => string),
    options?: UseFetchOptions<T>,
) {
    // Generate a stable key based on the URL
    const key = typeof url === 'function' ? url() : url
    
    return useFetch(url, {
        key, // Add a stable key
        ...options,
        $fetch: useNuxtApp().$api
    })
}

This approach is mentioned in a GitHub issue comment where a user solved a similar infinite loop problem. 2. Use useAsyncData with a static key As an alternative, you could switch to useAsyncData with a static key:

export function useAPI<T>(
    url: string | (() => string),
    options?: UseFetchOptions<T>,
) {
    const resolvedUrl = typeof url === 'function' ? url() : url
    
    return useAsyncData<T>(
        `api:${resolvedUrl}`, // Static key
        () => useNuxtApp().$api(resolvedUrl, options)
    )
}

export function useAPI<T>(
    url: string | (() => string),
    options?: UseFetchOptions<T>,
) {
    const resolvedUrl = typeof url === 'function' ? url() : url
    
    return useAsyncData<T>(
        `api:${resolvedUrl}`, // Static key
        () => useNuxtApp().$api(resolvedUrl, options)
    )
}

3. Use lazy loading If the infinite loop occurs during initial page load, you could try using the lazy option:

export function useAPI<T>(
    url: string | (() => string),
    options?: UseFetchOptions<T>,
) {
    return useFetch(url, {
        lazy: true, // Only fetch on client-side
        ...options,
        $fetch: useNuxtApp().$api
    })
}

export function useAPI<T>(
    url: string | (() => string),
    options?: UseFetchOptions<T>,
) {
    return useFetch(url, {
        lazy: true, // Only fetch on client-side
        ...options,
        $fetch: useNuxtApp().$api
    })
}

4. Check for proxy configuration The infinite loop might also be related to your proxy configuration. As mentioned in a GitHub issue, there was a bug in Nitro 2.11.6 that caused infinite loops with relative paths and proxies. This was fixed in Nitro 2.11.7. Make sure you're using the latest version of Nitro and consider adding the Connection: 'keep-alive' header to your proxy configuration. Would you like me to help you debug this further with a more specific approach based on your setup? Kapa AI: I've provided several solutions to address the infinite loop issue you're experiencing with your Nuxt API implementation. Let me know which approach you'd like to try or if you need more specific guidance. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@255361968037167105> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

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