remotesynth/index.js

## index.js
import { serve } from "https://deno.land/std@0.114.0/http/server.ts";
import { DOMParser } from "https://esm.sh/linkedom";

async function handler(req: Request): Promise<Response> {
  const document = new DOMParser().parseFromString(`<html>
  <head><title>Just a simple page</title></head>
  <body>
    <h1>This header will change</h1>
    <p>The above header will change depending on the flag value.</p>
  </body>
</html>`);

  const headerText: string = await getFlagValue("default","production","header-text");
  const h1 = document.querySelector("h1");
  h1.innerHTML = headerText;

  return new Response(document.toString(), {
    headers: { "content-type": "text/html; charset=utf-8" },
  });
}

// this is a very basic API function that only handles on/off
async function getFlagValue(project:string, environment:string, key:string) {
  const flagDataResponse: ReadableStream  = await fetch(new Request(`https://app.launchdarkly.com/api/v2/flags/${project}/${key}?env=${environment}`, {
    headers: { Authorization: Deno.env.get("LAUNCHDARKLY_API") }
  }));
  const flagData: object = await flagDataResponse.json();

  if (flagData.environments.production.on)
    return flagData.variations[flagData.defaults.onVariation].value;
  else
    return flagData.variations[flagData.defaults.offVariation].value;
}

serve(handler);
	import { serve } from "https://deno.land/std@0.114.0/http/server.ts";
	import { DOMParser } from "https://esm.sh/linkedom";

	async function handler(req: Request): Promise<Response> {
	const document = new DOMParser().parseFromString(`<html>
	<head><title>Just a simple page</title></head>
	<body>
	<h1>This header will change</h1>
	<p>The above header will change depending on the flag value.</p>
	</body>
	</html>`);

	const headerText: string = await getFlagValue("default","production","header-text");
	const h1 = document.querySelector("h1");
	h1.innerHTML = headerText;

	return new Response(document.toString(), {
	headers: { "content-type": "text/html; charset=utf-8" },
	});
	}

	// this is a very basic API function that only handles on/off
	async function getFlagValue(project:string, environment:string, key:string) {
	const flagDataResponse: ReadableStream = await fetch(new Request(`https://app.launchdarkly.com/api/v2/flags/${project}/${key}?env=${environment}`, {
	headers: { Authorization: Deno.env.get("LAUNCHDARKLY_API") }
	}));
	const flagData: object = await flagDataResponse.json();

	if (flagData.environments.production.on)
	return flagData.variations[flagData.defaults.onVariation].value;
	else
	return flagData.variations[flagData.defaults.offVariation].value;
	}

	serve(handler);