#Dynamic image import

15 messages · Page 1 of 1 (latest)

sleek path
#

It is unclear to me how to dynamically impport an image now that Astro.resolve has been removed. I have a content article in a folder. the image in question is in the same folder. I'm trying to use the image in a component. I've passed the image file name to the component as a prop. Here is the code that does not work:

const author = Astro.props.author
const authorType = Astro.props.authorType
const authorBio = Astro.props.authorBio
const link = Astro.props.authorLink
const thumb = Astro.props.image

<div class="author-bio">
<img src={thumb} class="author-bio-thumbnail float float-right" alt={author} width="200" />
<div class="author-bio-box">
<div class="author-bio-title">{author}</div>
<div class="author-bio">{authorBio}</div>
</div>
</div>

novel marshBOT
#

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

#

To dynamically import images in Astro, you can use the import.meta.glob function. This function returns an object of all the image paths inside a specified folder. You can then use this object to access the image you want to display.

Here's an example of how you can do this:

---
import { Image } from 'astro:assets';
interface Props { imagePath: string; altText: string; }
const { imagePath, altText } = Astro.props;
const images = import.meta.glob<{ default: ImageMetadata }>('/src/assets/*.{jpeg,jpg,png,gif}');
if (!images[imagePath]) throw new Error(`"${imagePath}" does not exist in glob: "src/assets/*.{jpeg,jpg,png,gif}"`);
---
<div class="author-bio">
  <Image src={images**imagePath** ()} alt={altText} class="author-bio-thumbnail float float-right" width={200} />
  <div class="author-bio-box">
    <div class="author-bio-title">{author}</div>
    <div class="author-bio">{authorBio}</div>
  </div>
</div>

In this example, images is an object that contains all of the image paths inside the assets folder. The imagePath prop is a string that contains the path to the image that you want to display. The import.meta.glob() is doing the work of finding the image path that matches the imagePath prop and handling the import for you.

Please note that the import.meta.glob function only works with static strings and does not support variables. This means that you cannot use a variable to dynamically specify the folder or file extensions.

For more information, you can refer to the Astro documentation on dynamically importing images (https://docs.astro.build/en/recipes/dynamically-importing-images#recipe).

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

#

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

sleek path
#

@novel marsh can you repeat the Image tag in JS? src={imagesimagePath ()} is not working for me

novel marshBOT
#

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

#

I'm sorry for the confusion. The images**imagePath** () syntax is used to invoke the function returned by import.meta.glob. If you're having trouble with it, it might be due to the imagePath not matching any of the keys in the images object.

Here's a simplified example of how you can use it:

---
import { Image } from 'astro:assets';
import type { ImageMetadata } from 'astro';

interface Props { imagePath: string; altText: string; }
const { imagePath, altText } = Astro.props;

const images = import.meta.glob<{ default: ImageMetadata }>('/src/assets/*.{jpeg,jpg,png,gif}');
if (!images[imagePath]) throw new Error(`"${imagePath}" does not exist in glob: "src/assets/*.{jpeg,jpg,png,gif}"`);
---

<Image src={images**imagePath** ().default} alt={altText} />

In this example, images is an object where each key is a path to an image file, and the value is a function that when called, returns a Promise that resolves to the URL of the image. The images**imagePath** () syntax is calling the function associated with the imagePath key, and .default is used to get the URL of the image.

Please ensure that the imagePath prop you're passing to the component matches one of the keys in the images object. If it doesn't, the images[imagePath] expression will be undefined, and trying to call it as a function will result in an error.

For more information, you can refer to the Astro documentation on dynamically importing images (https://docs.astro.build/en/recipes/dynamically-importing-images#recipe).

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

#

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

sleek path
#

@novel marsh That line throws an error: [ERROR] Unexpected ")"
Stack trace:

Can you show me an JS example, not TS?

novel marshBOT
#

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

#

I apologize for the confusion. Here's how you can dynamically import images in Astro using JavaScript:

---
import { Image } from 'astro:assets';

const { imagePath, altText } = Astro.props;
const images = import.meta.glob('/src/assets/*.{jpeg,jpg,png,gif}');
if (!images[imagePath]) throw new Error(`"${imagePath}" does not exist in glob: "src/assets/*.{jpeg,jpg,png,gif}"`);
let imageSrc;
images**imagePath** ().then((module) => {
  imageSrc = module.default;
});
---
<Image src={imageSrc} alt={altText} />

In this example, images is an object that contains all of the image paths inside the assets folder. The imagePath prop is a string that contains the path to the image that you want to display. The import.meta.glob() is doing the work of finding the image path that matches the imagePath prop and handling the import for you.

Please note that the import.meta.glob function only works with static strings and does not support variables. This means that you cannot use a variable to dynamically specify the folder or file extensions.

For more information, you can refer to the Astro documentation on dynamically importing images (https://docs.astro.build/en/recipes/dynamically-importing-images#recipe).

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

#

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

sleek path
#

@novel marsh this line is not valid JS:

imagesimagePath ().then((module) => {
imageSrc = module.default;
});

novel marshBOT
#

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

#

I apologize for the confusion. The correct syntax to call the function returned by import.meta.glob in JavaScript is images**imagePath** (). Here's the corrected code:

---
import { Image } from 'astro:assets';

const { imagePath, altText } = Astro.props;
const images = import.meta.glob('/src/assets/*.{jpeg,jpg,png,gif}');
if (!images[imagePath]) throw new Error(`"${imagePath}" does not exist in glob: "src/assets/*.{jpeg,jpg,png,gif}"`);
let imageSrc;
images**imagePath** ().then((module) => {
  imageSrc = module.default;
});
---
<Image src={imageSrc} alt={altText} />

In this example, images is an object where each key is a path to an image file, and the value is a function that when called, returns a Promise that resolves to the module of the image. The images**imagePath** () syntax is calling the function associated with the imagePath key, and .default is used to get the URL of the image.

Please ensure that the imagePath prop you're passing to the component matches one of the keys in the images object. If it doesn't, the images[imagePath] expression will be undefined, and trying to call it as a function will result in an error.

For more information, you can refer to the Astro documentation on dynamically importing images (https://docs.astro.build/en/recipes/dynamically-importing-images#recipe).

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