درخواست POST با محتوای JSON

نمونه‌ای برای ارسال درخواست POST با داده‌های JSON. از این نمونه برای به‌اشتراک گذاشتن داده‌ها با سرورهای خارجی استقاده می‌شود.

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

async function handleRequest(request) {
  
addEventListener("fetch", (event) => {
  /**
   * Example someHost is set up to take in a JSON request
   * Replace url with the host you wish to send requests to
   * @param {string} url the URL to send the request to
   * @param {BodyInit} body the JSON data to send in the request
   */
  const someHost = "https://examples.arvanedge.ir/demos";
  const url = someHost + "/requests/json";
  const body = {
    results: ["default data to send"],
    errors: null,
    msg: "I sent this to the fetch",
  };

  /**
   * gatherResponse awaits and returns a response body as a string.
   * Use await gatherResponse(..) in an async function to get the response body
   * @param {Response} response
   */
  async function gatherResponse(response) {
    const { headers } = response;
    const contentType = headers.get("content-type") || "";
    if (contentType.includes("application/json")) {
      return JSON.stringify(await response.json());
    } else if (contentType.includes("application/text")) {
      return response.text();
    } else if (contentType.includes("text/html")) {
      return response.text();
    } else {
      return response.text();
    }
  }

  const init = {
    body: JSON.stringify(body),
    method: "POST",
    headers: {
      "content-type": "application/json;charset=UTF-8",
    },
  };
  const response = await fetch(url, init);
  const results = await gatherResponse(response);
  return new Response(results, init);
}