Edge Developer Platform
  • Edge Functions
    • Overview
    • Getting Started
    • Operation Guide
      • Function Management
      • Function Trigger
    • Runtime APIs
      • addEventListener
      • Cache
      • Cookies
      • Encoding
      • Fetch
      • FetchEvent
      • Headers
      • Request
      • Response
      • Streams
        • ReadableStream
        • ReadableStreamBYOBReader
        • ReadableStreamDefaultReader
        • TransformStream
        • WritableStream
        • WritableStreamDefaultWriter
      • Web Crypto
      • Web standards
      • Images
        • ImageProperties
    • Sample Functions
      • Returning an HTML Page
      • Returning a JSON Object
      • Fetch Remote Resources
      • Authenticating a Request Header
      • Modifying a Response Header
      • Performing an A/B Test
      • Setting Cookies
      • Performing Redirect Based on the Request Location
      • Using the Cache API
      • Caching POST Requests
      • Responding in Streaming Mode
      • Merging Resources and Responding in Streaming Mode
      • Protecting Data from Tampering
      • Rewriting a m3u8 File and Configuring Authentication
      • Adaptive Image Resize
      • Image Adaptive WebP
      • Customize Referer restriction rules
      • Remote Authentication
      • HMAC Digital Signature
      • Naming a Downloaded File
      • Obtaining Client IP Address
    • Best Practices
      • Adaptive Image Format Conversion via Edge Functions
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Sample Functions/
Returning an HTML Page/

Returning an HTML Page

In this example, an edge function is used to generate an HTML page, and the HTML page is accessed and previewed from a browser.

Sample Code

const html = `
  <!DOCTYPE html>
  <body>
    <h1>Hello World</h1>
    <p>This markup was generated by TencentCloud Edge Functions.</p>
  </body>
`;

async function handleRequest(request) {
  return new Response(html, {
    headers: {
      'content-type': 'text/html; charset=UTF-8',
      'x-edgefunctions-test': 'Welcome to use Edge Functions.',
    },
  });
}

addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request));
});

Sample Preview

In the address bar of the browser, enter a URL that matches a trigger rule of the edge function to preview the effect of the sample code.


References

Runtime APIs: addEventListener
Runtime APIs: Response
Runtime APIs: FetchEvent