Hi @void garnet. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
#Full Route Cache for dynamic routes
clear shardBOT
Yes, dynamic routes in Next.js can be cached as part of the Full Route Cache. This is achieved through the generateStaticParams API. For dynamic segments (e.g. app/blog/[slug]/page.js), paths provided by generateStaticParams are cached in the Full Route Cache at build time. At request time, Next.js will also cache paths that weren't known at build time the first time they're visited.
However, you can disable caching at request time by using export const dynamicParams = false option in a route segment. When this config option is used, only paths provided by generateStaticParams will be served, and other routes will 404 or match (in the case of catch-all routes).
For more details, you can refer to the generateStaticParams API reference (https://nextjs.org/docs/app/api-reference/functions/generate-static-params) and the Next.js Caching documentation (https://nextjs.org/docs/app/building-your-application/caching#generatestaticparams).
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void garnet
@clear shard At request time, will Next.js cache paths with dynamic segments that weren't known at build time the first time they're visited as "Full Route Cache"?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Yes, Next.js will cache paths with dynamic segments that weren't known at build time the first time they're visited. This is part of the Full Route Cache functionality.
For dynamic segments (e.g. app/blog/[slug]/page.js), paths provided by generateStaticParams are cached in the Full Route Cache at build time. At request time, Next.js will also cache paths that weren't known at build time the first time they're visited.
However, you can disable caching at request time by using export const dynamicParams = false option in a route segment. When this config option is used, only paths provided by generateStaticParams will be served, and other routes will 404 or match (in the case of catch-all routes).
For more details, you can refer to the generateStaticParams API reference (https://nextjs.org/docs/app/api-reference/functions/generate-static-params) and the Next.js Caching documentation (https://nextjs.org/docs/app/building-your-application/caching#generatestaticparams).
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void garnet
@clear shard The doc says
If the dynamic = 'error' and dynamic = 'force-static' are used, it'll change the default of dynamicParams to false.
However, my dynamic routes still generate paths not included in generateStaticParams with "force-static". Why is that?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
The behavior you're experiencing might be due to a misunderstanding of the dynamic and dynamicParams options in Next.js.
The dynamic option controls the rendering behavior of your page or layout. When set to 'force-static', it forces static rendering and cache the data of a layout or page by forcing cookies(), headers() and useSearchParams() to return empty values.
On the other hand, the dynamicParams option controls what happens when a dynamic segment is visited that was not generated with generateStaticParams. When dynamicParams is set to true (which is the default), dynamic segments not included in generateStaticParams are generated on demand. When dynamicParams is set to false, dynamic segments not included in generateStaticParams will return a 404.
However, if the dynamic = 'error' and dynamic = 'force-static' are used, it'll change the default of dynamicParams to false. This means that dynamic segments not included in generateStaticParams will return a 404, not that they will be generated.
If your dynamic routes are still generating paths not included in generateStaticParams with 'force-static', it might be because your dynamicParams is still set to true or not set at all (which defaults to true). You might want to explicitly set dynamicParams to false to prevent generating paths not included in generateStaticParams.
For more details, you can refer to the Next.js Route Segment Config documentation (https://nextjs.org/docs/app/api-reference/file-conventions/route-segment-config#dynamicparams) and the Next.js Route Segment Config documentation for dynamic (https://nextjs.org/docs/app/api-reference/file-conventions/route-segment-config#dynamic).
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void garnet
@clear shard Yes, I'm aware of that my dynamicParams is still set to true or not set at all. But isn't it supposed to set to false due to dynamic = 'force-static'?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Yes, according to the Next.js documentation, if dynamic = 'force-static' or dynamic = 'error' is used, it should change the default of dynamicParams to false. This means that dynamic segments not included in generateStaticParams should return a 404, instead of being generated on demand.
However, if you're experiencing a different behavior, it might be due to a specific configuration in your project or a potential issue with Next.js itself. It's also worth noting that the behavior of these options might vary between development and production modes.
If you're still facing this issue, I would recommend checking your project's configuration, ensuring you're using the latest version of Next.js, and if the issue persists, consider opening an issue in the Next.js GitHub repository (https://github.com/vercel/next.js/issues) to get help from the community.
For more details, you can refer to the Next.js Route Segment Config documentation (https://nextjs.org/docs/app/api-reference/file-conventions/route-segment-config#dynamicparams) and the Next.js Route Segment Config documentation for dynamic (https://nextjs.org/docs/app/api-reference/file-conventions/route-segment-config#dynamic).
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void garnet
@clear shard Does React's cache dedupe data fetching with a third-party library at build time?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
According to the information from the provided knowledge sources, React's cache function can be used to configure the caching and revalidating behavior of data fetching requests when using a third-party library. However, it's not explicitly stated that it dedupes data fetching at build time.
In the context of Next.js, data fetching can occur at build time, at request time on the server, or on the client. For example, you can fetch data from your CMS and render your blog posts at build time, which can then be efficiently cached on a CDN.
However, there's an open issue on the Next.js GitHub repository discussing problems with deduping not working as expected when using third-party libraries. Some users have reported getting around this issue by manually wrapping every fetch with the cache function.
For more information, you can refer to the Next.js documentation on data fetching (https://nextjs.org/docs/app/building-your-application/data-fetching/fetching-caching-and-revalidating#fetching-data-on-the-server-with-third-party-libraries) and the related GitHub issue (https://github.com/vercel/next.js/issues/52126).
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void garnet
@clear shard Does React's cache dedupe data fetching with a third-party library on the server?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Yes, React's cache function can be used to dedupe data fetching requests when using a third-party library on the server in a Next.js application. This is particularly useful when you want to prevent multiple calls to a data store for the same data during the same request-response lifecycle.
Here's an example from the Next.js documentation (https://nextjs.org/docs/app/building-your-application/data-fetching/fetching-caching-and-revalidating#fetching-data-on-the-server-with-third-party-libraries) on how to use the cache function:
import { cache } from 'react'
export const getItem = cache(async (id: string) => {
const item = await db.item.findUnique({ id })
return item
})
In this example, even if the getItem function is called multiple times during the same request-response lifecycle, only one query will be made to the database.
However, it's important to note that there's an open issue on the Next.js GitHub repository discussing problems with deduping not working as expected when using third-party libraries. Some users have reported getting around this issue by manually wrapping every fetch with the cache function. You can refer to the related GitHub issue (https://github.com/vercel/next.js/issues/52126) for more information.
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void garnet
@clear shard How much of data can be stored as Data Cache on Vercel?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
The storage limit for Vercel Data Cache is based on your subscription plan. However, the exact storage limit is not specified in the provided knowledge sources. When the storage limit is reached, existing items will be evicted based on which items were least recently used.
It's also important to note that the maximum size of an item in the cache is 2 MB. Items larger than this will not be cached. A cache item can have a maximum of 64 tags, and the maximum tag length is 256 bytes.
For more details, you can refer to the Vercel Data Cache Usage and Pricing documentation (https://vercel.com/docs/infrastructure/data-cache/limits-and-pricing).
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void garnet
@clear shard How much is the storage limit for Pro?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
I'm sorry, but the provided knowledge sources do not specify the exact storage limit for the Pro plan on Vercel. For detailed information about the storage limits and pricing for the Pro plan, I recommend checking the official Vercel documentation (https://vercel.com/docs) or contacting Vercel support directly.
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void garnet
@clear shard Does not-found.js at the top of /app directory take over layout.js, meaning its being wrapped in the layout?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
No, the not-found.js file at the top of the /app directory does not take over layout.js. Instead, it is used to render a UI when the notFound() function is thrown within a route segment, or when a user visits a URL that is not handled by your app (source (https://nextjs.org/docs/app/api-reference/file-conventions/error#not-foundjs)).
The layout.js file, on the other hand, is used to define a layout that wraps around your pages. It is part of the component hierarchy in a route segment, and it is rendered before not-found.js (source (https://nextjs.org/docs/app/building-your-application/routing#component-hierarchy)).
Therefore, if you want to use a layout for your not-found.js page, you would need to manually include it in your not-found.js file. Here's an example:
import Layout from './layout.js'
export default function NotFound() {
return (
<Layout>
{/* Your 404 content here */}
</Layout>
)
}
Please note that this is a simplified example and you might need to adjust it based on your project's structure and requirements.
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void garnet
@clear shard as I tested it is wrapped in layout.js thoguh?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
I apologize for the confusion. According to the Next.js documentation (https://nextjs.org/docs/app/building-your-application/routing/error-handling#handling-errors-in-layouts), error.js boundaries do not catch errors thrown in layout.js or template.js components of the same segment. This intentional hierarchy keeps important UI that is shared between sibling routes (such as navigation) visible and functional when an error occurs.
However, there have been issues reported (https://github.com/vercel/next.js/issues/52937) where the not-found path doesn't include or derive the layout as expected. This behavior seems to have changed in Next.js version 13.4.10 and later, where the not-found page doesn't include what's defined/composed in layout.js.
If you're observing that your not-found.js page is being wrapped in layout.js, it could be due to a specific configuration in your project or a potential issue with Next.js itself. It's also worth noting that the behavior of these files might vary between development and production modes.
If you're still facing this issue, I would recommend checking your project's configuration, ensuring you're using the latest version of Next.js, and if the issue persists, consider opening an issue in the Next.js GitHub repository (https://github.com/vercel/next.js/issues) to get help from the community.
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard ok then how can I show users a totally blank page when they visit a 404 page?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
To show users a totally blank page when they visit a 404 page, you can create a custom 404 page in your Next.js application. You can do this by creating a pages/404.js file. This file is statically generated at build time.
Here's an example of how you can create a blank 404 page:
export default function Custom404() {
return null;
}
In this example, the Custom404 function returns null, which means no elements will be rendered, resulting in a blank page.
For more details, you can refer to the Next.js documentation on customizing the 404 page (https://nextjs.org/docs/pages/building-your-application/routing/custom-error#404-page).
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void garnet
@clear shard no I mean, how can I show users a black page withtout being wrapped in layout.js when they visit an unmatchied url?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
To show users a blank page without being wrapped in layout.js when they visit an unmatched URL, you can create a custom not-found.js file in the /app directory. This file is used to render a UI when a user visits a URL that is not handled by your app.
Here's an example of how you can create a blank not-found.js page:
export default function NotFound() {
return null;
}
In this example, the NotFound function returns null, which means no elements will be rendered, resulting in a blank page.
Please note that this not-found.js file should be placed directly under the /app directory, not inside any other directories or route groups. This is because the global 404 file must be app/not-found.js with nothing in between, whether it's a route group, a normal route, or anything else (source (https://github.com/vercel/next.js/issues/55717)).
For more details, you can refer to the Next.js documentation on error handling (https://nextjs.org/docs/app/api-reference/file-conventions/error#not-foundjs).
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void garnet
@clear shard If a user gets redirected to a static page with a parameter which isn't used to do something with the page, will its router cache be used to show them the page?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Yes, the router cache will be used to show the user the page. In Next.js, the router cache is kept for the duration of the session and applies to both static and dynamic routes. This cache is kept in the browser and is invalidated if you hit refresh or after a certain period of time.
However, if the parameter isn't used to do something with the page, it won't affect the content of the page that is shown to the user. The page content will be the same as what was cached, regardless of the parameter.
For more details, you can refer to the Next.js GitHub issue discussing router cache (https://github.com/vercel/next.js/issues/51788).
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void garnet
@clear shard Let's say there're two fetch in a static page (server component). If one is revalidated (by using revalidateTag), the other Data Cache is also revalidated?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
No, if you revalidate one fetch request using revalidateTag, it does not automatically revalidate other fetch requests or Data Cache. The revalidateTag function only revalidates the cache entries associated with the specified tag.
Here's an example from the Next.js documentation (https://nextjs.org/docs/app/building-your-application/caching#fetch-optionsnexttags-and-revalidatetag):
// Cache data with a tag
fetch(`<https://...`,> { next: { tags: ['a', 'b', 'c'] } })
// Revalidate entries with a specific tag
revalidateTag('a')
In this example, calling revalidateTag('a') will only revalidate the cache entries associated with the tag 'a'. It will not revalidate cache entries associated with other tags or other fetch requests.
However, it's important to note that revalidating or opting out of the Data Cache will invalidate the Full Route Cache, as the render output depends on data (source (https://nextjs.org/docs/app/building-your-application/caching#cache-interactions)).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard So when the Full Route Cache is purged to re-generate the page, the other Data Cache would be used as it was?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Yes, when the Full Route Cache is purged to re-generate the page, the other Data Cache would be used as it was, provided it has not been invalidated or opted out.
In Next.js, the Data Cache and the Full Route Cache are separate. When you revalidate one fetch request, it invalidates the Full Route Cache because the render output depends on the data. However, it does not affect other Data Cache. The other Data Cache will still be used as it was, unless it has been specifically invalidated or opted out.
This allows you to dynamically render a route that has both cached and uncached data. This is useful when most of your page uses cached data, but you have a few components that rely on data that needs to be fetched at request time. You can dynamically render without worrying about the performance impact of re-fetching all the data (source (https://nextjs.org/docs/app/building-your-application/caching#cache-interactions)).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard What would dynamic route generate or deal with every time a user visits the page if it uses caches as much as possible?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
When a user visits a dynamic route in a Next.js application, the following steps occur:
-
Check the Router Cache: Next.js first checks if the React Server Component Payload for the requested route is stored in the Router Cache. If it is, Next.js will reuse the cache instead of making a new request to the server (source (https://nextjs.org/docs/app/building-your-application/caching#router-cache)).
-
Fetch Data if Not in Cache: If the route segments are not in the cache, Next.js will fetch the React Server Component Payload from the server, and populate the Router Cache on the client (source (https://nextjs.org/docs/app/building-your-application/caching#subsequent-navigations)).
-
Render the Page: Next.js then renders the page. If the page uses dynamic rendering, it will be rendered at request time. This is useful when a route has data that is personalized to the user or has information that can only be known at request time, such as cookies or the URL's search params (source (https://nextjs.org/docs/app/building-your-application/rendering/server-components#dynamic-rendering)).
-
Use Cached and Uncached Data: In Next.js, you can have dynamically rendered routes that have both cached and uncached data. This is because the React Server Component (RSC) Payload and data are cached separately. This allows you to opt into dynamic rendering without worrying about the performance impact of fetching all the data at request time (source (https://nextjs.org/docs/app/building-your-application/rendering/server-components#dynamic-rendering)).
So, in summary, when a user visits a dynamic route, Next.js will try to use the cache as much as possible. If the required data is not in the cache, it will fetch the data, render the page, and then store the data in the cache for future requests.
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard How can I minimize the server cost for dynamic routes?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Sorry @void garnet, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
void garnet
@clear shard How can I minimize the server cost for dynamic routes?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Sorry @void garnet, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
void garnet
@clear shard I use NextAuth to get a session in a dynamic route which has const dynamic = "force-dynamic" because I believe the auth instance from NextAuth would automatically make the route dynamic. However, the route is deemed "SSG" at build. The route works fine when running in production in local. Could you explain why the route built by SSG?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
The force-dynamic option in Next.js is used to force a route to be considered dynamic and rendered at request time, even if it doesn't use any dynamic data. This is useful when you have a route that doesn't use any dynamic data but still needs to be rendered at request time for some reason, such as authentication or personalization.
However, if your route is being considered as "SSG" (Static Site Generation) at build time, it means that Next.js is pre-rendering this page at build time and reusing the generated HTML for all requests. This usually happens when you use getStaticProps in your page, which tells Next.js to pre-render this page at build time.
In your case, it seems like you're using NextAuth to get a session in a dynamic route. If you're using getSession or similar functions from NextAuth in getStaticProps, it could cause your page to be pre-rendered at build time, because getStaticProps runs at build time and cannot fetch data that is specific to a user or a session.
If you want your page to be rendered at request time, you should avoid using getStaticProps and instead fetch the session data inside your component or in getServerSideProps, which runs at request time.
Here's an example of how you can fetch session data inside your component:
import { useSession } from 'next-auth/client'
export default function Page() {
const [session, loading] = useSession()
if (loading) return null
return <div>Welcome {session?.user?.name}</div>
}
In this example, the useSession hook from NextAuth is used to fetch the session data. This hook runs on the client side, so it won't cause your page to be pre-rendered at build time.
For more details, you can refer to the Next.js documentation on dynamic routes (https://nextjs.org/docs/routing/dynamic-routes) and the NextAuth documentation on sessions (https://next-auth.js.org/getting-started/client).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard The auth instance that I use should be used in the server to verify whether users signed in or not. So pages for the dynamic route are supposed to be generated at request time. However, the route is considered as SSG. In this strange condition, the components other than client components are generated at build time and stored as Full Route Cache?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Sorry @void garnet, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
void garnet
@clear shard The auth instance that I use should be used in the server to verify whether users signed in or not. So pages for the dynamic route are supposed to be generated at request time. However, the route is considered as SSG. In this strange condition, the components other than client components are generated at build time and stored as Full Route Cache?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Sorry @void garnet, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
void garnet
@clear shard The auth instance that I use should be used in the server to verify whether users signed in or not. So pages for the dynamic route are supposed to be generated at request time. However, the route is considered as SSG. In this strange condition, the components other than client components are generated at build time and stored as Full Route Cache?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Sorry @void garnet, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
void garnet
@clear shard ok
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
I'm glad you found the information helpful! If you have any more questions about Next.js or NextAuth, feel free to ask. Happy coding!
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard The auth instance that I use should be used in the server to verify whether users signed in or not. So pages for the dynamic route are supposed to be generated at request time. However, the route is considered as SSG. In this strange condition, the components other than client components are generated at build time and stored as Full Route Cache?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
In Next.js, the force-dynamic option is used to ensure that a route is rendered at request time, even if it doesn't use any dynamic data. This is particularly useful for scenarios like authentication where you need to verify user information at request time.
However, if your route is being considered as "SSG" (Static Site Generation) at build time, it means that Next.js is pre-rendering this page at build time and reusing the generated HTML for all requests. This usually happens when you use getStaticProps in your page, which tells Next.js to pre-render this page at build time.
If you're using NextAuth and the auth instance to verify whether users are signed in or not, it's important to note that this verification should happen at request time, not at build time. If you're using getSession or similar functions from NextAuth in getStaticProps, it could cause your page to be pre-rendered at build time, because getStaticProps runs at build time and cannot fetch data that is specific to a user or a session.
If you want your page to be rendered at request time, you should avoid using getStaticProps and instead fetch the session data inside your component or in getServerSideProps, which runs at request time.
However, if your dynamic route is still being considered as SSG despite using force-dynamic, it might be due to a specific configuration in your project or a potential issue with Next.js itself. It's also worth noting that the behavior of these options might vary between development and production modes.
If you're still facing this issue, I would recommend checking your project's configuration, ensuring you're using the latest version of Next.js, and if the issue persists, consider opening an issue in the Next.js GitHub repository (https://github.com/vercel/next.js/issues) to get help from the community.
For more details, you can refer to the Next.js documentation on dynamic routes (https://nextjs.org/docs/routing/dynamic-routes) and the NextAuth documentation on sessions (https://next-auth.js.org/getting-started/client).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard If I understand it correctly, the route other than the auth instance are stored as Full Route Cache at build time?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Sorry @void garnet, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
void garnet
@clear shard ok
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
I'm glad you found the information helpful! If you have any more questions about Next.js or NextAuth, feel free to ask. Happy coding!
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard If I understand it correctly, the route other than the auth instance are stored as Full Route Cache at build time?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Sorry @void garnet, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
void garnet
@clear shard I figure out it is rendered dynamically in the server side at request time although the route is considered as SSG on build. Can you explain why?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
In Next.js, a route being considered as "SSG" (Static Site Generation) at build time means that Next.js pre-renders the page at build time and reuses the generated HTML for all requests. However, this doesn't necessarily mean that the page can't be rendered dynamically at request time.
The key factor here is how you're fetching your data. If you're using getStaticProps in your page, it tells Next.js to pre-render the page at build time. But if you're using getServerSideProps or fetching data inside your component, it allows for dynamic rendering at request time.
Moreover, Next.js introduced a feature called Incremental Static Regeneration (ISR) which allows you to update static pages after you've built your site. With ISR, you can retain the benefits of static while having the ability to update pages. You can specify a revalidation period (in seconds) in getStaticProps. After this period, a page request will trigger a regeneration of the page in the background while serving the existing page (source (https://github.com/vercel/next.js/issues/50397)).
If you're seeing that your page is being dynamically rendered at request time despite being considered as SSG, it could be due to a specific configuration in your project or a potential issue with Next.js itself. It's also worth noting that the behavior of these options might vary between development and production modes.
If you're still facing this issue, I would recommend checking your project's configuration, ensuring you're using the latest version of Next.js, and if the issue persists, consider opening an issue in the Next.js GitHub repository (https://github.com/vercel/next.js/issues) to get help from the community.
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard Dynamic routes can be cached as Full Route Cache when having export const dynamic = "force-dynamic"?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
No, when you use export const dynamic = "force-dynamic" in a route segment config, it opts the route out from the Full Route Cache and dynamically renders it at request time. This means that the route will not be cached as Full Route Cache.
Here's what the Next.js documentation (https://nextjs.org/docs/app/api-reference/file-conventions/route-segment-config#dynamic) says about the force-dynamic option:
'force-dynamic': Force dynamic rendering, which will result in routes being rendered for each user at request time. This option is equivalent togetServerSideProps()in thepagesdirectory.
So, if you're using force-dynamic, your route will be rendered dynamically at request time and will not be stored in the Full Route Cache.
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard Can I use React's Suspense for a dynamic route that is considered as "SSG"?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Sorry @void garnet, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
Let me check the knowledge base for you. One moment! :books:
Sorry @void garnet, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
void garnet
@clear shard Can I use React's Suspense for a dynamic route that is considered as "SSG"?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Sorry @void garnet, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
opaque path
how to avoid revalidation, i want app router to be full ssg
void garnet
@clear shard Why does the button node in LoginButton component have the function called handleClick?
'use client'
import { authenticate } from '@/app/lib/actions'
import { useFormState, useFormStatus } from 'react-dom'
export default function Page() {
const [errorMessage, dispatch] = useFormState(authenticate, undefined)
return (
<form action={dispatch}>
<input type="email" name="email" placeholder="Email" required />
<input type="password" name="password" placeholder="Password" required />
<div>{errorMessage && <p>{errorMessage}</p>}</div>
<LoginButton />
</form>
)
}
function LoginButton() {
const { pending } = useFormStatus()
const handleClick = (event) => {
if (pending) {
event.preventDefault()
}
}
return (
<button aria-disabled={pending} type="submit" onClick={handleClick}>
Login
</button>
)
}
Let me check the knowledge base for you. One moment! :books:
The handleClick function in the LoginButton component is used to prevent the form from being submitted when the authentication process is still pending.
Here's how it works:
- The
useFormStatus()hook is used to get the current status of the form. If the form is currently being submitted (i.e., the authentication process is still ongoing),pendingwill betrue. - The
handleClickfunction is attached to theonClickevent of the button. This function will be called every time the button is clicked. - Inside the
handleClickfunction, it checks ifpendingistrue. If it is, it callsevent.preventDefault(). This prevents the default action of the event from being triggered. In this case, it prevents the form from being submitted. - This is useful because it prevents the form from being submitted multiple times if the user clicks the button multiple times in quick succession. It ensures that the form is only submitted once the authentication process is complete.
So, the handleClick function is used to control the form submission process and ensure that the form is not submitted while the authentication process is still pending (source (https://nextjs.org/docs/app/building-your-application/authentication#implementing-authentication)).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
void garnet
@clear shard But isn't it enough if the button node is controlled by diasbled property?
clear shardBOT
Let me check the knowledge base for you. One moment! :books:
Yes, you're correct. The disabled property in HTML is used to specify that a button should be disabled. A disabled button is unclickable and unusable. When the disabled property is set to true, the button is disabled.
In the context of your code, you could use the disabled property to disable the button when the authentication process is pending. Here's how you could modify the LoginButton component:
function LoginButton() {
const { pending } = useFormStatus()
return (
<button disabled={pending} type="submit">
Login
</button>
)
}
In this modified version of the LoginButton component, the disabled property is set to pending. This means that the button will be disabled (and therefore unclickable) when the authentication process is pending.