Initial commit

.gitignore

@@ -0,0 +1,5 @@
+.DS_Store
+.serverless
+data/*
+node_modules
+package-lock.json

LICENSE.md

@@ -0,0 +1,9 @@
+# MIT License
+
+Copyright (c) 2017 Sebastian Müller <mail@sbstjn.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -0,0 +1,54 @@
+# Serverless GeoIP
+
+Use AWS Lambda and [MaxMind GeoLite](http://dev.maxmind.com/geoip/geoip2/geolite2/) to query for locations of IP addresses. You can invoke the function or use API Gateway to send an HTTP request with the IP address to lookup.
+
+## Install
+
+```bash
+$ > git clone git@github.com:sbstjn/serverless-geoip.git
+$ > cd serverless-geoip
+$ > yarn install
+```
+
+## Configure
+
+Download the [GeoLite2 City](http://dev.maxmind.com/geoip/geoip2/geolite2/) database and store the file inside the `data` folder.
+
+## Deploy 
+
+```bash
+$ > yarn deploy
+
+…
+
+endpoints:
+  GET - https://randomid.execute-api.us-east-1.amazonaws.com/dev/lookup
+```
+
+## Usage
+
+### Invoke
+
+```bash
+$ > sls invoke -f lookup --data '{ "ip": "8.8.8.8" }'
+
+{
+    "continent": {
+        "code": "NA",
+        "geoname_id": 6255149,
+        "names": {
+            "de": "Nordamerika",
+            "en": "North America",
+            "es": "Norteamérica",
+
+…
+…
+```
+
+### HTTP Request
+
+```bash
+$ > curl https://randomid.execute-api.us-east-1.amazonaws.com/dev/lookup?ip=8.8.8.8
+
+{"continent":{"code":"NA","geoname_id":6255149,"names":{"de":"Nordamerika","en":"North America", …
+```

package.json

@@ -0,0 +1,21 @@
+{
+  "name": "serverless-geoip",
+  "version": "1.0.0",
+  "description": "Use MaxMind GeoLite2 database with AWS Lambda and serverless",
+  "main": "index.js",
+  "scripts": {
+    "deploy": "sls deploy"
+  },
+  "keywords": [
+    "serverless",
+    "geoip"
+  ],
+  "author": "Sebastian Müller <mail@sbstjn.com>",
+  "license": "MIT",
+  "dependencies": {
+    "mmdb-reader": "^1.1.0"
+  },
+  "devDependencies": {
+    "serverless": "^1.24.0"
+  }
+}

serverless.yml

@@ -0,0 +1,34 @@
+service: serverless-geoip
+
+provider:
+  name: aws
+  runtime: nodejs6.10
+  memorySize: 128
+  timeout: 120
+  region: us-east-1
+
+package:
+  exclude:
+    - .gitignore
+    - CODE_OF_CONDUCT.md
+    - dist/**
+    - LICENSE.md
+    - README.md
+    - yarn.lock
+    - package.json
+    - package-lock.json
+
+functions:
+  lookup:
+    handler: src/lookup.run
+    timeout: 120
+    memorySize: 128
+
+  http:
+    handler: src/http.run
+    memorySize: 128
+    timeout: 120
+    events:
+      - http:
+          method: GET
+          path: /lookup

src/http.js

@@ -0,0 +1,27 @@
+const Reader = require('mmdb-reader')
+const lookup = require('./lookup')
+
+const res = data => ({
+  statusCode: 200,
+  body: JSON.stringify(data)
+})
+
+const run = (event, ctx, callback) => {
+  console.log(ctx)
+
+  if (!event || !event.queryStringParameters || !event.queryStringParameters.ip) {
+    callback(
+      new Error('Invalid event.queryStringParameters.ip')
+    )
+  } else {
+    const req = { ip: event.queryStringParameters.ip }
+
+    lookup.run(
+      req,
+      ctx,
+      (error, data) => callback(null, res(data))
+    )
+  }
+}
+
+module.exports = { run }

src/lookup.js

@@ -0,0 +1,18 @@
+const Reader = require('mmdb-reader')
+const file = __dirname + '/../data/GeoLite2-City.mmdb'
+
+const run = (event, ctx, callback) => {
+  console.log(ctx)
+
+  if (!event || !event.ip) {
+    callback(
+      new Error('Invalid event data, requires IP address')
+    )
+  } else {
+    Reader.open(file,
+      (error, reader) => callback(error, !error && reader.lookup(event.ip))
+    )
+  }
+}
+
+module.exports = { run }