EliaECoyote/firebaseFunction2.ts

## firebaseFunction2.ts
import * as functions from 'firebase-functions';
import * as express from 'express';

const app = express();

function buildOgTemplate(event: any) {
  return `
    <!DOCTYPE html>
    <html>
      <head>
        <meta http-equiv="Content-type" content="text/html; charset=utf-8"/>
        <meta property="og:title"        content="${event.title}" />
        <meta property="og:description"  content="${event.description}" />
        <meta property="og:url"          content="https://socialevents.com" />
        <meta property="og:image"        content="${event.image}" />
        <meta property="og:type"         content="website" />
        <meta property="og:image:width"  content="600" />
        <meta property="og:image:height" content="600" />
        <base href="/">
      </head>
    </html>
  `
}

const publicEndpoint = "https://socialevents.com"
const apiEndpoint = "https://api.socialevents.com/api/v1"

const nodeFetchConfig = {
  headers: {
    "Accept": "application/json",
    "Cache-Control": "no-cache"
  }
};

app.get('/events/:id', (request, response) => {
  const userAgent = request.get('user-agent');
  if (userAgent.indexOf("facebookexternalhit") === 0) {
      const endpoint = `${apiEndpoint}/ev/${request.params.id}`;
      fetch(apiEndpoint, nodeFetchConfig)
        .then(res => res.json())
        .then(json => json.data)
        .then(event => {
          const template = buildTemplateWithMetas(event)
          response.status(200).send(template);
        })
        .catch(error =>
          fetch(`${publicEndpoint}/index.html`)
            .then(res => res.text())
            .then(html => response.status(200).send(html))
            .catch(err => response.send(err));
        );
  } else {
    fetch(`${config.publicEndpoint}/index.html`)
      .then(res => res.text())
      .then(html => response.send(html))
      .catch(error => response.send(error));
  }
});

exports.eventsReqHandler = functions.https.onRequest(app);
	import * as functions from 'firebase-functions';
	import * as express from 'express';

	const app = express();

	function buildOgTemplate(event: any) {
	return `
	<!DOCTYPE html>
	<html>
	<head>
	<meta http-equiv="Content-type" content="text/html; charset=utf-8"/>
	<meta property="og:title" content="${event.title}" />
	<meta property="og:description" content="${event.description}" />
	<meta property="og:url" content="https://socialevents.com" />
	<meta property="og:image" content="${event.image}" />
	<meta property="og:type" content="website" />
	<meta property="og:image:width" content="600" />
	<meta property="og:image:height" content="600" />
	<base href="/">
	</head>
	</html>
	`
	}

	const publicEndpoint = "https://socialevents.com"
	const apiEndpoint = "https://api.socialevents.com/api/v1"

	const nodeFetchConfig = {
	headers: {
	"Accept": "application/json",
	"Cache-Control": "no-cache"
	}
	};

	app.get('/events/:id', (request, response) => {
	const userAgent = request.get('user-agent');
	if (userAgent.indexOf("facebookexternalhit") === 0) {
	const endpoint = `${apiEndpoint}/ev/${request.params.id}`;
	fetch(apiEndpoint, nodeFetchConfig)
	.then(res => res.json())
	.then(json => json.data)
	.then(event => {
	const template = buildTemplateWithMetas(event)
	response.status(200).send(template);
	})
	.catch(error =>
	fetch(`${publicEndpoint}/index.html`)
	.then(res => res.text())
	.then(html => response.status(200).send(html))
	.catch(err => response.send(err));
	);
	} else {
	fetch(`${config.publicEndpoint}/index.html`)
	.then(res => res.text())
	.then(html => response.send(html))
	.catch(error => response.send(error));
	}
	});

	exports.eventsReqHandler = functions.https.onRequest(app);