#getStaticPaths requesting undefined

1 messages · Page 1 of 1 (latest)

glossy hamlet
#

I have some routes I am generating with getStaticPaths(). I am hitting the storyBlok api to generate these routes. I am getting all routes but for some reason I keep getting a warning about an additional GET request for '/undefined' as a route. I can't seem to resolve or even find where it is coming from. Just want to have clean routes. Seems to be when getStaticPaths() is returning the slug params. Not sure if it is something with mapping over or what.

export async function getStaticPaths() {
const storyblokApi = useStoryblokApi()

const { data } = await storyblokApi.get('cdn/stories', {
level: 1,
excluding_slugs: 'home',
version: import.meta.env.DEV ? "draft" : "published",
resolve_links: 'url'
})
const pages = Object.values(data.stories)
// console.log(pages.length)
// console.log("PAGES:", pages)

return pages.map((page: any) => {
return {
params: { slug: page.slug },
props: { page },
}
});
}

slender merlinBOT
#

Hi @glossy hamlet. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

#

The getStaticPaths() function in Astro is used to generate static paths for dynamic routes. It should return an array of objects, where each object contains a params property that is also an object. The params object should contain the dynamic parts of the route. In your case, it seems like you're correctly returning an array of objects with params and props properties.

However, the issue you're facing might be due to the slug property of some pages being undefined. This could happen if the data returned from the Storyblok API doesn't contain a slug for some stories. When undefined is used as a route parameter, it can cause issues as it represents a path with no parameters passed in the URL. This can lead to path collisions during prerendering, which might be the cause of the warning you're seeing.

To debug this issue, you could add a check before returning the paths to ensure that the slug property is defined. If it's not, you could either skip that page or use a default value. Here's an example of how you could modify your code:

export async function getStaticPaths() {
  const storyblokApi = useStoryblokApi()

  const { data } = await storyblokApi.get('cdn/stories', {
    level: 1,
    excluding_slugs: 'home',
    version: import.meta.env.DEV ? "draft" : "published",
    resolve_links: 'url'
  }) 
  const pages = Object.values(data.stories)

  return pages.map((page: any) => {
    if (page.slug) {
      return {
        params: { slug: page.slug }, 
        props: { page },
      }
    }
  }).filter(Boolean);
}

In this modified version of your code, the map function will return undefined for pages without a slug, and the filter(Boolean) call will remove those undefined values from the array.

#

@glossy hamlet kapa.ai is still learning and improving, please let us know how it did by reacting below

glossy hamlet
#

@slender merlin I am still getting the following warning in the console:

#

@slender merlin [WARN] [router] A getStaticPaths() route pattern was matched, but no matching static path was found for requested path /undefined.

#

@slender merlin I am still getting the following warning in the console: [WARN] [router] A getStaticPaths() route pattern was matched, but no matching static path was found for requested path /undefined.

slender merlinBOT
#

Let me check the knowledge base for you. One moment! :books:

#

The warning message you're seeing is related to the NoMatchingStaticPathFound error in Astro. This error occurs when a getStaticPaths() route pattern is matched, but no matching static path is found for the requested path. In your case, it seems like the requested path is /undefined, which suggests that a route is being requested with an undefined parameter.

This could be due to a few reasons:

  1. There might be a link or a redirect in your application to /undefined, which doesn't match any of the paths generated by getStaticPaths().
  2. There might be a problem with the data you're using to generate the paths. If the slug property of some pages is undefined, it could lead to this issue.

To debug this, you could:

  • Check your application for any links or redirects to /undefined.
  • Log the paths generated by getStaticPaths() to the console to see if any of them are undefined.
  • Check the data returned from the Storyblok API to see if the slug property is undefined for any stories.

Here's how you could modify your getStaticPaths() function to log the paths:

export async function getStaticPaths() {
  const storyblokApi = useStoryblokApi()

  const { data } = await storyblokApi.get('cdn/stories', {
    level: 1,
    excluding_slugs: 'home',
    version: import.meta.env.DEV ? "draft" : "published",
    resolve_links: 'url'
  }) 
  const pages = Object.values(data.stories)

  const paths = pages.map((page: any) => {
    if (page.slug) {
      return {
        params: { slug: page.slug }, 
        props: { page },
      }
    }
  }).filter(Boolean);

  console.log(paths); // Log the paths to the console

  return paths;
}
#

@glossy hamlet kapa.ai is still learning and improving, please let us know how it did by reacting below

glossy hamlet
#

@slender merlin It seems I get the error when I first navigate to a different page and also when I first scroll the page. Any ideas on why that is happening? I am not requesting any apis on scroll.

slender merlinBOT
#

Let me check the knowledge base for you. One moment! :books:

#

Based on the information provided, it's difficult to pinpoint the exact cause of the issue. However, there are a few possibilities that could be causing the error when you navigate to a different page or scroll:

  1. View Transitions: If you're using Astro's View Transitions feature, it could be causing the issue. View Transitions can sometimes cause unexpected behavior, especially when dealing with dynamic routes. You can check the Astro documentation on View Transitions (https://docs.astro.build/en/guides/view-transitions/) for more information.

  2. Scroll Restoration: If you're using any kind of scroll restoration or scroll behavior control in your application, it might be causing the issue. There's a discussion on the Astro Discord about how to prevent scroll restoration before view transition (https://discord.com/channels/830184174198718474/1190173671449436300) that might be relevant.

  3. Dynamic Imports or Lazy Loading: If you're using dynamic imports or lazy loading in your application, it could be causing the issue. The error might occur when a component or module is being loaded.

  4. Event Listeners: If you have any event listeners that are triggering on scroll or navigation events, they might be causing the issue. There's a discussion on the Astro Discord about why View Transitions override event listeners in script tags (https://discord.com/channels/830184174198718474/1221395018124628109) that might be relevant.

To debug this issue, you could try disabling these features one by one to see if the error goes away. If it does, then you've found the cause of the issue. If not, you might need to dig deeper into your code to find the cause.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@glossy hamlet kapa.ai is still learning and improving, please let us know how it did by reacting below

glossy hamlet
#

@slender merlin I have logged all paths from getStaticPaths() in the console and they all have values. Not a single one is undefined. What are the reasons I am getting the NoMatchingStaticPathFound?

slender merlinBOT
#

Let me check the knowledge base for you. One moment! :books:

#

The NoMatchingStaticPathFound warning in Astro occurs when a getStaticPaths() route pattern is matched, but no matching static path is found for the requested path. If you're sure that all paths returned by getStaticPaths() are valid and none of them are undefined, then the issue might be caused by something else in your application.

Here are a few possibilities:

  1. Incorrect Link or Redirect: There might be a link or a redirect in your application to a path that doesn't exist. This could be a hardcoded link in your HTML, a programmatic navigation in your JavaScript, or a redirect in your server configuration. Check your application for any links or redirects to paths that don't exist.

  2. Client-side Navigation: If you're using client-side navigation (for example, with a library like @astrojs/router), it might be trying to navigate to a path that doesn't exist. Check your client-side navigation code for any incorrect paths.

  3. Server-side Rendering (SSR): If you're using SSR, it might be trying to render a path that doesn't exist. Check your SSR configuration and make sure it's not trying to render any incorrect paths.

  4. Dynamic Import or Lazy Loading: If you're using dynamic imports or lazy loading in your application, it might be trying to load a module at a path that doesn't exist. Check your dynamic import and lazy loading code for any incorrect paths.

To debug this issue, you could try logging all navigation events in your application to see which path is causing the issue. You could also try using a tool like React Router's useHistory (https://reactrouter.com/web/api/Hooks/usehistory) hook (if you're using React) or Vue Router's router.afterEach (https://router.vuejs.org/guide/advanced/navigation-guards.html#global-after-hooks) hook (if you're using Vue) to log all navigation events.

#

@glossy hamlet kapa.ai is still learning and improving, please let us know how it did by reacting below

glossy hamlet
#

@slender merlin I finally found the issue. There was a component that is used on most pages and it has the option to use an image url for a css background-image. On some pages it does not have an image and therefore no url. Wrote an if statement to check if the image existed first.

slender merlinBOT
#

Let me check the knowledge base for you. One moment! :books:

#

I'm glad to hear that you've found the issue! It seems like the problem was caused by a component trying to use an image URL for a CSS background image, even when the image URL was undefined. This is a good reminder that it's important to check if variables are defined before using them, especially when dealing with dynamic data or optional props.

For anyone else encountering a similar issue, here's an example of how you could check if an image URL is defined before using it:

// Inside your component
if (imageUrl) {
  // Use the image URL for the CSS background image
  element.style.backgroundImage = `url(${imageUrl})`;
} else {
  // Use a default background image or color
  element.style.backgroundImage = 'url(default-image.png)';
}

This code checks if imageUrl is defined before using it for the CSS background image. If imageUrl is undefined, it uses a default image instead. This prevents any issues that might be caused by trying to use an undefined URL.

Remember, it's always a good practice to handle potential undefined or null values in your code to prevent unexpected behavior or errors.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: