Nuxt•4mo ago

useCookie with lifetime

Hello @kapa.ai How can I use useCookie with lifetime or maxAge?

8 Replies

Hi @Ivan Ortiz. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- You can set a lifetime for a cookie using the useCookie composable in Nuxt by providing the maxAge or expires option. - maxAge: Specifies the number of seconds until the cookie expires. - expires: Specifies a Date object for when the cookie should expire. Here's an example of how to use useCookie with maxAge:

const myCookie = useCookie('my-cookie', {
  maxAge: 60 * 60 * 24 // 1 day in seconds
})

const myCookie = useCookie('my-cookie', {
  maxAge: 60 * 60 * 24 // 1 day in seconds
})

Or with an explicit expiration date:

const myCookie = useCookie('my-cookie', {
  expires: new Date(Date.now() + 7 * 24 * 60 * 60 * 1000) // 7 days from now
})

const myCookie = useCookie('my-cookie', {
  expires: new Date(Date.now() + 7 * 24 * 60 * 60 * 1000) // 7 days from now
})

If both expires and maxAge are set, maxAge takes precedence, but it's recommended to set both to the same value for compatibility with all clients. If neither is set, the cookie will be session-only and removed when the browser is closed. You can also set other options like httpOnly, secure, and domain as needed Docs: useCookie maxAge/expires. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4mo ago

<@796711333285855263> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

Ivan OrtizOP•4mo ago

Thanks @kapa.ai And hw I check this cookie doesn't exist and / or has ended his life time?

kapa.ai•4mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- To check if a cookie does not exist or has expired (ended its lifetime) using useCookie in Nuxt, you can simply check if the value returned by useCookie is null or undefined. If the cookie has expired or was never set, useCookie will return null (or the default value you specified). Example:

const myCookie = useCookie('my-cookie', {
  default: () => null
})

if (!myCookie.value) {
  // Cookie does not exist or has expired
  // Handle accordingly
}

const myCookie = useCookie('my-cookie', {
  default: () => null
})

if (!myCookie.value) {
  // Cookie does not exist or has expired
  // Handle accordingly
}

This approach works because when a cookie expires, it is removed from the browser, and useCookie will not find it, resulting in a null or undefined value. If you set a default value, it will return that instead when the cookie is missing or expired. This is the recommended way to check for cookie existence and validity in Nuxt Docs: useCookie. If you want to persist a more complex object and check for a specific property (like an expiration date inside the cookie value), you would need to implement that logic yourself after reading the cookie value. But for standard cookie expiration, the above check is sufficient. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4mo ago

<@796711333285855263> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

Ivan OrtizOP•4mo ago

@kapa.ai That is correct? const openBannerModal = ref(false); let cook = useCookie(cModalBanner-${props.data.id}); if(!cook.value){ setTimeout(() => { openBannerModal.value = true; useCookie(cModalBanner-${props.data.id}, {maxAge: expires: new Date(Date.now() + props.data.cookielife * 24 * 60 * 60 * 1000) // 7 days from now}) }, timeout); }

kapa.ai•4mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Your code has the right idea, but there are a few issues and improvements to consider: 1. String Interpolation: You should use backticks (`) for template literals in JavaScript, not single quotes. 2. useCookie Usage: You should only call useCookie once per cookie name in a given context. To set the cookie value, assign to cook.value. 3. Options Syntax: The options object for useCookie should use either maxAge or expires, not both in the same property. 4. Setting the Cookie: To set the cookie, assign a value to cook.value, not by calling useCookie again. Here’s a corrected version:

const openBannerModal = ref(false);

const cook = useCookie(`cModalBanner-${props.data.id}`);

if (!cook.value) {
  setTimeout(() => {
    openBannerModal.value = true;
    // Set the cookie to any value (e.g., true) and set expiration
    cook.value = true;
    cook.options = {
      expires: new Date(Date.now() + props.data.cookielife * 24 * 60 * 60 * 1000)
    };
  }, timeout);
}

const openBannerModal = ref(false);

const cook = useCookie(`cModalBanner-${props.data.id}`);

if (!cook.value) {
  setTimeout(() => {
    openBannerModal.value = true;
    // Set the cookie to any value (e.g., true) and set expiration
    cook.value = true;
    cook.options = {
      expires: new Date(Date.now() + props.data.cookielife * 24 * 60 * 60 * 1000)
    };
  }, timeout);
}

Important notes: - The useCookie composable should be called only once for a given cookie name in a component or composable. - To set the cookie's expiration, you can pass the options when you first call useCookie, or set cook.options before assigning a value. - If you want to set the cookie when the modal is shown, assign a value to cook.value at that time. For more details, see the official documentation on useCookie options. If you need to update the cookie's value or options after initial creation, you may need to re-initialize useCookie with the new options, but typically you set the options on the first call. If you need to refresh the cookie value after it has changed elsewhere, you can use the refreshCookie utility refreshCookie docs. If you need more advanced handling (like watching for changes), see the watch option. --- If you need a more specific example or have a particular use case, let me know! ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4mo ago

<@796711333285855263> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

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useCookie with lifetime

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