Nuxt•3w ago

Authentication and Fetch Confusion

Hello everyone, im new to nuxt, i developed most of my projects on vite but i am kind of getting confused about the fetch function, i want to contact my backend service for authentication but i am having a problem when i submit the form i am using $fetch function to my localhost at a different port where the backend service is listening but i don't understand why it maps the IP to a page instead.

5 Replies

kapa.ai•3w ago

Hi @NiceCraftz. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To address your authentication issue in Nuxt, let's focus on the correct way to use fetch functions for authentication. Based on the provided knowledge sources, here are some key points to consider: 1. For authentication requests, it's recommended to use $fetch or useFetch. The Nuxt documentation on Sessions and Authentication provides an example of a login API route and a login page using $fetch:

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'))
}

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'))
}

2. When making requests to a different port or domain, you need to ensure that your Nuxt configuration allows for cross-origin requests. The documentation doesn't provide specific information about this, but it's an important consideration. 3. If you're seeing unexpected behavior where the IP is mapped to a page instead of making the request, it could be due to how you're constructing the URL. Make sure you're providing the full URL, including the protocol (http:// or https://), when making requests to a different port or domain. 4. For authentication, you might want to consider using the nuxt-auth-utils module, which provides convenient utilities for managing client-side and server-side session data. You can install it using:

npx nuxi@latest module add auth-utils

npx nuxi@latest module add auth-utils

5. When using $fetch or useFetch for authentication, make sure to handle errors properly. The Nuxt documentation on useFetch shows how to use interceptors for handling request and response errors:

const { data, error } = await useFetch('/api/auth/login', {
  onRequestError({ request, options, error }) {
    // Handle the request errors
  },
  onResponseError({ request, response, options }) {
    // Handle the response errors
  }
})

const { data, error } = await useFetch('/api/auth/login', {
  onRequestError({ request, options, error }) {
    // Handle the request errors
  },
  onResponseError({ request, response, options }) {
    // Handle the response errors
  }
})

If you're still experiencing issues, it would be helpful to see your specific code and the exact error you're encountering. Make sure you're using the latest version of Nuxt and that your backend service is correctly configured to accept requests from your Nuxt application's origin. Nuxt Documentation on Sessions and Authentication Nuxt Documentation on useFetch ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•3w ago

<@689519446578298982> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

NiceCraftzOP•3w ago

my backend is in spring java anyone?

dmarr•3w ago

are you using BASE_URL by chance?

NiceCraftzOP•3w ago

i don't know what that is sadly

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