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如何将astro组件呈现为HTML字符串?

astrojs javascript

ThomasReggi · 技术社区 · 4 年前

我希望能够在Astro中有一个动态页面来渲染Astro组件。我已经深入研究了文档和代码,但找不到像下面这样的函数( Astro.render )。理想情况下,我可以将属性传递给它。我正在寻找类似于 react.renderToString 。

import Example from './components/Example.astro'

export async function get() {
  return {
    body: Astro.render(Example)
  };
}

更新:我认为这里的每一个答案都是错的。给定一个astro文件,我想要 node 独立于运行时astro框架,可以获取astro文件并简单地返回 Response (因为我知道astro文件可以返回来自前物质的响应)和 HTML 一串我认为它可以是一个元组 [res, htmlString] 。就像可以转换markdown文件一样,也应该能够处理astro文件。

0 回复 | 直到 3 年前

wassfila 3 年前

使用Slots将Astro组件渲染为html字符串

Astro中确实存在对html字符串的渲染,但对于slot,如果您在另一个Wrapper/Serializer中传递组件,则可以很容易地获得其html字符串

工作示例

github回购 https://github.com/MicroWebStacks/astro-examples#16_html-string
代码沙盒 https://stackblitz.com/github/MicroWebStacks/astro-examples/tree/main/16_html-string

用法

这是Wrapper组件的主体,它被用于高亮显示,但也与Fragment组件一起渲染

---
const html = await Astro.slots.render('default');
import { Code } from 'astro/components';
---
<Fragment set:html={html} />

<Code code={html} lang="html" />

用法如下

例如。 index.astro

---
import Card from '../components/Card.astro';
import StringWrapper from '../components/StringWrapper.astro';
...
---
    <StringWrapper>
        <Card title="Test" />
    </StringWrapper>

HappyDev 4 年前

Astro组件在服务器上渲染,因此您可以直接引用包含的组件并根据需要传递道具。

// [title].astro

---
import Example from './components/Example.asto'
---

<Example message="Hey" />

solipsist 3 年前

@HappyDev的建议启发了这一点,虽然不是特别抽象,可能需要一些重构,但它确实有效,并允许您通过构建相应的Astro组件,使用其动态区域和组件在Strapi中构建Astro页面:

/pages/index.astro

import SectionType1 from '../components/sections/SectionType1.astro'
// Import all the components you use to ensure styles and scripts are injected`
import renderPageContent from '../helpers/renderPageContent'
const page = await fetch(STRAPIENDPOINT) // <-- Strapi JSON
const contentParts = page.data.attributes.Sections 
const pageContentString = await renderPageContent(contentParts)
---
<Layout>
    <div set:html={pageContentString}></div>
</Layout>

/helpers/renderPageContent.js

export default async function (parts) {

  const pagePartsContent = [];
  parts.forEach(function (part) {
    let componentRequest = {};

    switch (part.__component) {

      case "sections.SectionType1":
        componentRequest.path = "SectionType1";
        componentRequest.params = {
          title: part.Title, // Your Strapi fields for this component
          text: part.Text    // watch out for capitalization
        };
        break;

// Add more cases for each component type and its fields

    }
    if (Object.keys(componentRequest).length) {
      pagePartsContent.push(componentRequest);
    }
  });

  let pagePartsContentString = "";
  
  for (const componentRequest of pagePartsContent) {
    let response = await fetch(
      `${import.meta.env.SITE_URL}/components/${
        componentRequest.path
      }?data=${encodeURIComponent(JSON.stringify(componentRequest.params))}`
    );

    let contentString = await response.text();
    // Strip out everything but the component markup so we avoid getting style and script tags in the body
    contentString = contentString.match(/(<section.*?>.*<\/section>)/gims)[0];
    pagePartsContentString += contentString;
  }

  return pagePartsContentString;
}

/组件/节/SectionType1.astro

---
export interface Props {
  title: string;
  text?: string;
}

const { title, text } = Astro.props as Props;
---
<section>
  <h1>{ title }</h1>
  <p>{ text }</p>
</section>

/页面/组件/SectionType1.astro

---
import SectionType1 from '../../components/sections/SectionType1.astro';
import urlParser from '../../helpers/urlparser'
const { title, text } = urlParser(Astro.url);
---
<SectionType1
  title={title}
  text={text}
  />

/helpers/urlParser.js

export default function(url) {
  return JSON.parse(Object.fromEntries(new URL(url).searchParams).data)
}