functions.js

/**
 * rawHtmlResponse returns HTML inputted directly
 * into the worker script
 * @param {string} html
*/
export function rawHtmlResponse(html) {
const init = {
    headers: {
    'content-type': 'text/html;charset=UTF-8',
    },
};
return new Response(html, init);
}

/**
 * readRequestBody reads in the incoming request body
 * Use await readRequestBody(..) in an async function to get the string
 * @param {Request} request the incoming request to read from
 */
export async function readRequestBody(request) {
    const { headers } = request;
    const contentType = headers.get('content-type') || '';
  
    if (contentType.includes('application/json')) {
      return JSON.stringify(await request.json());
    } else if (contentType.includes('application/text')) {
      return request.text();
    } else if (contentType.includes('text/html')) {
      return request.text();
    } else if (contentType.includes('form')) {
      const formData = await request.formData();
      const body = {};
      for (const entry of formData.entries()) {
        body[entry[0]] = entry[1];
      }
      return JSON.stringify(body);
    } else {
      // Perhaps some other type of data was submitted in the form
      // like an image, or some other binary data.
      return 'a file';
    }
  }