Add proxy code

.github/workflows/deploy.yml

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+name: Lint Code Base
+
+on: [push]
+
+jobs:
+  build:
+    name: Lint Code Base
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: bahmutov/npm-install@v1
+      - run: npm run format
+      - run: git status
+

.gitignore

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+node_modules/

.prettierrc

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+{
+	"printWidth": 140,
+	"singleQuote": true,
+	"semi": true
+}

README.md

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 # url-privacy-proxy
 Extracts coordinates from google-encoded urls without exposing clients' IP addresses
+
+URIs like https://maps.app.goo.gl/Ce7zkj2X8oUy3Se49?g_st=ic are unshortened and coordinates are extracted and then coverted to geo URIs.
+
+
+[![Deploy master to Production](https://deploy.workers.cloudflare.com/button)](https://deploy.workers.cloudflare.com/?url=https://github.com/organicmaps/url-privacy-proxy)
+
+## Requirements
+
+Install CloudFlare's wrangler and other dev dependencies using npm:
+
+```bash
+npm i
+```
+
+## Development
+
+Use `npx wrangler dev` for development using Cloudflare, or `npx wrangler dev --local` for localhost development.
+
+## Testing
+
+Run `npm start` and then `npm test` or `jest` in a different terminal to test the proxy with some earlier feeded URIs.

header.ts

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-/**
+/*
  * URL Privacy Proxy by Organic Maps
  * Copyright (C) 2023 Organic Maps OÜ
  *

index.ts

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+import { Router } from 'itty-router';
+import { getCoordinates } from './src/coordinates';
+
+const router = Router();
+
+router.get('/coordinates', async (request) => {
+  const json = await getCoordinates(request);
+  if (json==null) {
+    return new Response('Bad Request', {
+      status:400,
+      statusText: 'Bad Request'
+    })
+  }
+  return new Response(json, {
+    headers: {
+      'content-type': 'application/json;charset=UTF-8',
+    },
+  });
+});
+
+router
+  .get('/redirect', async (request) => {
+    let json = await getCoordinates(request);
+    json = JSON.parse(json);
+    const link = json.url.geo;
+    return Response.redirect(link);
+  })
+
+  .get('*', async (request) => {
+    return new Response(JSON.stringify({ error: 'hey' }));
+  });
+addEventListener('fetch', (e) => {
+  e.respondWith(router.handle(e.request));
+});