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#Get multiple Component type
dry atlasBOT
Yes, you can use the ComponentProps utility from astro/types to reference the Props types of another component, even if that component doesn’t export that Props type directly. This type export allows you to reference the Props accepted by another component.
Here is an example of how you can use it:
import type { ComponentProps } from 'astro/types';
import CardTemplate from "./CardTemplate.astro";
import PostTemplate from "./PostTemplate.astro";
type CardTemplateProps = ComponentProps<typeof CardTemplate>;
type PostTemplateProps = ComponentProps<typeof PostTemplate>;
const templatesMap: Record<string, any> = {
card: CardTemplateProps,
default: PostTemplateProps,
};
const postTemplate = getPostCategoryTemplate(Astro.props);
const TemplateTag = templatesMap[postTemplate];
In this example, CardTemplateProps and PostTemplateProps will contain the types of the props for CardTemplate and PostTemplate respectively. Then, you can use these types in your templatesMap to ensure that TemplateTag has the correct type.
Please note that this is a TypeScript feature and you need to have TypeScript enabled in your Astro project to use it. You can find more information about using TypeScript with Astro in the Astro documentation (https://docs.astro.build/en/guides/typescript/#componentprops-type).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
pallid wyvern
@dry atlas
import CardTemplate from '../components/content/templates/CardTemplate.astro';
import PostTemplate from '../components/content/templates/PostTemplate.astro';
import type { ComponentProps } from 'astro/types';
interface TemplatesMapProps {
card: ComponentProps<typeof CardTemplate>;
default: ComponentProps<typeof PostTemplate>;
}
const templatesMap: TemplatesMapProps = {
card: CardTemplate,
default: PostTemplate,
};
const postTemplate = getPostCategoryTemplate(Astro.props);
const TemplateTag = templatesMap[postTemplate];
I tried, but TS is giving this error:
Type '(_props: Props) => any' is not assignable to type '{ layout: LayoutProps; post: PostContentProps; }'.ts(2322)
[...post].astro(15, 3): The expected type comes from property 'card' which is declared here on type 'TemplatesMapProps'
(property) TemplatesMapProps.card: {
layout: LayoutProps;
post: PostContentProps;
}
dry atlasBOT
Let me check the knowledge base for you. One moment! :books:
The error message you're seeing is because TypeScript is expecting the card property in TemplatesMapProps to be an object with layout and post properties, but you're assigning it a function (CardTemplate).
The ComponentProps utility gives you the type of the props of a component, not the component itself. So, when you're defining TemplatesMapProps, you're saying that card and default are objects with certain properties (the props of the components), not the components themselves.
If you want to map string keys to components, you can do it like this:
import CardTemplate from '../components/content/templates/CardTemplate.astro';
import PostTemplate from '../components/content/templates/PostTemplate.astro';
const templatesMap: Record<string, any> = {
card: CardTemplate,
default: PostTemplate,
};
const postTemplate = getPostCategoryTemplate(Astro.props);
const TemplateTag = templatesMap[postTemplate];
Then, when you use TemplateTag, you can use ComponentProps to get the type of its props:
type TemplateTagProps = ComponentProps<typeof TemplateTag>;
Please note that this will only work if getPostCategoryTemplate(Astro.props) returns either 'card' or 'default'. If it can return other values, you should add them to templatesMap and their corresponding types to TemplatesMapProps.
For more information, you can refer to the Astro documentation (https://docs.astro.build/en/guides/typescript/#componentprops-type).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
pallid wyvern
@dry atlas OK. so how i can set TemplateTagProps to be used in TempalteTag?
const templatesMap: Record<string, any> = {
card: CardTemplate,
default: PostTemplate,
};
const postTemplate = getPostCategoryTemplate(Astro.props);
const TemplateTag = templatesMap[postTemplate];
<TemplateTag
layout={{
routeName: 'post',
metadata,
preloader: true,
}}
post={{
title,
content,
excerpt,
date,
modified,
author,
}}
/>
dry atlasBOT
Let me check the knowledge base for you. One moment! :books:
To use TemplateTagProps in TemplateTag, you first need to define TemplateTagProps as the type of the props of TemplateTag. Here's how you can do it:
import type { ComponentProps } from 'astro/types';
// Define the type of the props of TemplateTag
type TemplateTagProps = ComponentProps<typeof TemplateTag>;
// Then, when you use TemplateTag, you can use TemplateTagProps to type its props
const templateTagProps: TemplateTagProps = {
layout: {
routeName: 'post',
metadata,
preloader: true,
},
post: {
title,
content,
excerpt,
date,
modified,
author,
},
};
<TemplateTag {...templateTagProps} />
In this example, templateTagProps is an object that matches the props expected by TemplateTag. You can then spread templateTagProps into TemplateTag to pass the props to it.
Please note that this will only work if the props of CardTemplate and PostTemplate have the same shape. If they have different props, you'll need to handle that in your code.