Get geolocation about a given IP address

.github/workflows/deploy-geoip.yaml

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+name: Deploy Compute@Edge GeoIp
+on:
+  push:
+#    branches: [main] 
+## Note: by removing the branches value, the workflow will run when a push is made to any branch. This is to serve for testing. 
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Install project dependencies
+      run: npm install
+      working-directory: fastly-compute/geoip
+
+    - name: Deploy to Compute@Edge
+      uses: fastly/compute-actions@v5
+      with:
+        project_directory: ./fastly-compute/geoip
+      env:
+        FASTLY_API_TOKEN: ${{ secrets.FASTLY_API_TOKEN }}

fastly-compute/geoip/.gitignore

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+/node_modules
+/bin
+/pkg

fastly-compute/geoip/.secret.json

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+{
+ "sup3rs3cr3t" : "true"
+}

fastly-compute/geoip/README.md

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+# Get Geolocation Information About a Given IP Address
+
+This service using [Fastly's Compute@Edge](https://developer.fastly.com/learning/compute/) to get specific geolcation information about a given IP address, and deploys automagically using Github Actions.
+
+## Getting started
+
+- Be sure to install [Fastly's CLI](https://developer.fastly.com/learning/tools/cli/)
+- As well as the dependencies: `npm install`
+
+## Try it out locally
+
+`fastly compute serve --watch`
+- This application should now be running on http://localhost:7676

fastly-compute/geoip/fastly.toml

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+# This file describes a Fastly Compute@Edge package. To learn more visit:
+# https://developer.fastly.com/reference/fastly-toml/
+
+authors = ["[email protected]"]
+description = "geoip"
+language = "javascript"
+manifest_version = 3
+name = "geoip"
+service_id = "CnsNqIdpSj1tZNLTl6PUi4"
+
+[scripts]
+  build = "npm run build"
+
+[local_server]
+  [local_server.config_stores]
+    [local_server.config_stores.geoip_auth]
+      file = ".secret.json"
+      format = "json"
+

fastly-compute/geoip/package.json

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+{
+  "name": "get-geolocation-for-ip",
+  "version": "0.4.0",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/pypi/infra.git"
+  },
+  "type": "module",
+  "author": "chloe@python.org",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/pypi/infra/issues"
+  },
+  "homepage": "https://developer.fastly.com/solutions/starters/compute-starter-kit-javascript-empty",
+  "dependencies": {
+    "@fastly/js-compute": "^2.0.1"
+  },
+  "scripts": {
+    "build": "js-compute-runtime ./src/index.js ./bin/main.wasm",
+    "deploy": "fastly compute publish"
+  }
+}

fastly-compute/geoip/src/index.js

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+/// <reference types="@fastly/js-compute" />
+
+import { getGeolocationForIpAddress } from "fastly:geolocation";
+import { ConfigStore } from "fastly:config-store";
+
+async function app(event) {
+    const configStore = new ConfigStore("geoip_auth");
+    const secret = event.request.headers.get("X-Secret");
+    const token = await configStore.get(secret);
+
+    if (!token) {
+      let respBody = JSON.stringify({ Error: "Unauthorized" });
+      return new Response(respBody, {
+        status: 401,
+        headers: { "Content-Type": "application/json" },
+      });
+    }
+    let ip =
+      new URL(event.request.url).searchParams.get("ip") || event.client.address;
+    let geo = getGeolocationForIpAddress(ip);
+    let respBody = JSON.stringify({
+      geo: {
+        city: geo.city,
+        continent: geo.continent,
+        country_code: geo.country_code,
+        country_code3: geo.country_code3,
+        country_name: geo.country_name,
+        region: geo.region,
+      },
+    });
+
+    return new Response(respBody, {
+      headers: {
+        "Content-Type": "application/json",
+      },
+    });
+  }
+
+addEventListener("fetch", (event) => event.respondWith(app(event)));