DEV Community

Cover image for Building an Address Search Function Using Amplify Geo and MapLibre GL Geocoder
Yasunori Kirimoto for AWS Community Builders

Posted on

Building an Address Search Function Using Amplify Geo and MapLibre GL Geocoder

img

I built an address search function using Amplify Geo and MapLibre GL Geocoder 🎉

Amplify Geo was officially released the other day. Amplify Geo is one of the features of AWS Amplify that makes it easier to build Amazon Location Service.
In this article, I tried to build a map application by adding an address search function with MapLibre GL Geocoder.

Advance Preparation

  • Amplify Geo settings up to the map display function

Building a Map Application with Amplify Geo and Vue.js

Setting up Amplify Geo

First, we will configure Amplify Geo.
Add location feature (geocoding)

If you only need a location function (geocoding), you can implement it with these two commands and the map function!
Amazon Location Service requires AWS console configuration and role configuration, but Amplify Geo does all of that for you!

amplify add geo
Enter fullscreen mode Exit fullscreen mode
amplify push
Enter fullscreen mode Exit fullscreen mode

This completes the configuration of Amplify Geo.

Frontend

Next, let's build the actual map application.

Once you have configured the map display function of Amplify Geo, you only need to change "MapPane.vue" and "main.js".

execution environment

  • node v16.10.0
  • npm v7.24.0

Install MapLibre GL Geocoder in advance.

npm install @maplibre/maplibre-gl-geocoder
Enter fullscreen mode Exit fullscreen mode

Overall composition

img

package.json

{
  "name": "amplify-geo",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "lint": "vue-cli-service lint"
  },
  "dependencies": {
    "@aws-amplify/ui-components": "^1.9.2",
    "@maplibre/maplibre-gl-geocoder": "^1.2.0",
    "aws-amplify": "^4.3.4",
    "core-js": "^3.6.5",
    "maplibre-gl": "^1.15.2",
    "maplibre-gl-js-amplify": "^1.1.2",
    "vue": "^3.0.0",
    "vue-router": "^4.0.0-0",
    "vuex": "^4.0.0-0"
  },
  "devDependencies": {
    "@vue/cli-plugin-babel": "~4.5.0",
    "@vue/cli-plugin-eslint": "~4.5.0",
    "@vue/cli-plugin-router": "~4.5.0",
    "@vue/cli-plugin-vuex": "~4.5.0",
    "@vue/cli-service": "~4.5.0",
    "@vue/compiler-sfc": "^3.0.0",
    "babel-eslint": "^10.1.0",
    "eslint": "^6.7.2",
    "eslint-plugin-vue": "^7.0.0"
  },
  "eslintConfig": {
    "root": true,
    "env": {
      "node": true
    },
    "extends": [
      "plugin:vue/vue3-essential",
      "eslint:recommended"
    ],
    "parserOptions": {
      "parser": "babel-eslint"
    },
    "rules": {}
  },
  "browserslist": [
    "> 1%",
    "last 2 versions",
    "not dead"
  ]
}
Enter fullscreen mode Exit fullscreen mode

/src

main.js

import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
import 'maplibre-gl/dist/maplibre-gl.css'
import '@maplibre/maplibre-gl-geocoder/dist/maplibre-gl-geocoder.css'
import 'maplibre-gl-js-amplify/dist/public/amplify-geocoder.css'

import {
  applyPolyfills,
  defineCustomElements
} from '@aws-amplify/ui-components/loader';
import Amplify from 'aws-amplify';
import awsconfig from './aws-exports';
Amplify.configure(awsconfig);

applyPolyfills().then(() => {
  defineCustomElements(window);
});

const app = createApp(App);
app.config.isCustomElement = tag => tag.startsWith('amplify-');
app.use(store).use(router).mount('#app');
Enter fullscreen mode Exit fullscreen mode

Load MapLibre GL Geocoder and wrappers.

import '@maplibre/maplibre-gl-geocoder/dist/maplibre-gl-geocoder.css'
import 'maplibre-gl-js-amplify/dist/public/amplify-geocoder.css'
Enter fullscreen mode Exit fullscreen mode

/src/components

MapPane.vue

<template>
    <div class='mapPane'>
        <div id='map'></div>
    </div>
</template>

<script>
    import { createMap, createAmplifyGeocoder } from 'maplibre-gl-js-amplify';

    export default {
        name: 'MapPane',
        data() {
            return {
            }
        },
        mounted: async function () {
            this.mapCreate();
        },
        methods: {
            mapCreate: async function() {
                const map = await createMap({
                    container: 'map',
                    center: [139.7648, 35.6794],
                    zoom: 15,
                    bearing: 64.8,
                    pitch: 60,
                    hash: true,
                });
                map.addControl(createAmplifyGeocoder());
            },
        }
    }
</script>

<style scoped>
    #map {
        z-index: 0;
        height: 800px;
    }
</style>
Enter fullscreen mode Exit fullscreen mode

Load MapLibre GL Geocoder wrapper.

import { createMap, createAmplifyGeocoder } from 'maplibre-gl-js-amplify';
Enter fullscreen mode Exit fullscreen mode

Load MapLibre GL Geocoder wrapper.

map.addControl(createAmplifyGeocoder());
Enter fullscreen mode Exit fullscreen mode

Let's check with a simple local server.

npm run serve
Enter fullscreen mode Exit fullscreen mode

Start up a local server and try logging in 💡

img

I was able to build an address search function using Amplify Geo and MapLibre GL Geocoder 👍

We have confirmed that the combination of Amplify Geo and MapLibre GL Geocoder makes it easier to build an address search function than using Amplify Geo as it is. I will continue to explore other features as well 👍

Top comments (0)