Forem: Yasunori Kirimoto

Monthly Amazon Location Service Updates - 2026.03

Yasunori Kirimoto — Sat, 04 Apr 2026 03:32:24 +0000

Monthly Amazon Location Service Updates - 2026.03

This is a summary of the March updates for Amazon Location Service.

2026.03 Updates

Amazon Location Service now supports GrabMaps with enhanced APIs for Southeast Asia
Amazon Location Service now supports GrabMaps with simplified APIs that eliminate upfront resource creation, making it faster to build maps, places, and routing applications with high-quality Southeast Asian data.

Other Info

Amazon Location Service Demo
Official Amazon Location Service demo.

Amazon Location Service Developer Guide
Official Amazon Location Service Documentation.

AWS Geospatial
Official AWS Geospatial samples.

maplibregljs-amazon-location-service-starter
Build environment to get started with Amazon Location Service.

dev.to
Articles on Amazon Location Service.

tags - Amazon Location Service
tags - Try
Notes on Amazon Location Service. (Japanese)

Yasunori Kirimoto for AWS Heroes

Mar 1

Monthly Amazon Location Service Updates - 2026.02

#amazonlocationservice #amazonlocationserviceupdates

Comments

1 min read

Monthly Amazon Location Service Updates - 2026.02

Yasunori Kirimoto — Sun, 01 Mar 2026 12:03:46 +0000

Monthly Amazon Location Service Updates - 2026.02

This is a summary of the February updates for Amazon Location Service.

2026.02 Updates

Amazon Location Service introduces LLM Context as a Kiro power and Claude Code plugin to improve AI performance
Amazon Location Service now exposes LLM context for AI agents as a Kiro power, Claude Code plugin, and Agent Skills format. Developers can leverage this to improve the accuracy of implementing location-based features, such as map displays and route searches, while reducing development time.

Other Info

Amazon Location Service Demo
Official Amazon Location Service demo.

Amazon Location Service Developer Guide
Official Amazon Location Service Documentation.

AWS Geospatial
Official AWS Geospatial samples.

maplibregljs-amazon-location-service-starter
Build environment to get started with Amazon Location Service.

dev.to
Articles on Amazon Location Service.

tags - Amazon Location Service
tags - Try
Notes on Amazon Location Service. (Japanese)

Monthly Amazon Location Service Updates - 2026.01

Yasunori Kirimoto for AWS Heroes ・ Feb 1

#amazonlocationservice #amazonlocationserviceupdates

Building the Yamaokaya Map (Unofficial)

Yasunori Kirimoto — Tue, 10 Feb 2026 12:35:42 +0000

About Yamaokaya Map (Unofficial)

Do you know about the wonderful ramen chain “Ramen Yamaokaya” in Japan?

Ramen Yamaokaya is a nationwide ramen chain founded in 1988 in Ushiku City, Ibaraki Prefecture, Japan. It's known for its rich tonkotsu broth and for allowing you to freely customize noodle firmness, flavor intensity, and fat content. Many locations are open 24 hours, making it beloved by truck drivers and night shift workers. I myself have been a fan for over 20 years. My home store is the legendary “Minami 2-jo Store” in Sapporo. I always order the shoyu ramen with less fat.

Last year's AWS Summit Japan 2025 inspired me to think about how I could support Yamaokaya within my area of expertise.

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So, I built an unofficial web application called “Yamaokaya Map.” This map lets you view store information for Ramen Yamaokaya locations nationwide.

https://yama.dayjournal.dev

This app supports PWA, so you can add it to your smartphone's home screen.

How to add:

iOS (Safari): Share button → “Add to Home Screen.”
Android (Chrome): Menu → “Add to Home Screen.”

Ramen Yamaokaya Store Types

Ramen Yamaokaya has four store types.

1. Ramen Yamaokaya
The standard Yamaokaya. Offers classic tonkotsu-based menu items. There are over 150 locations nationwide. I always order the Shoyu Ramen.

2. Niboshi Ramen Yamaokaya
A specialty shop serving niboshi (dried sardine) broth ramen. You can enjoy a different flavor profile from the standard Yamaokaya. I'm not a fan of niboshi, so I've actually never been.

3. Miso Ramen Yamaokaya
A shop specializing in miso ramen, known for its rich miso soup. Here, I recommend ordering the Shoyu Ramen deliberately. There are only 3 locations, all in Hokkaido.

4. Gyoza no Yamaokaya
A new concept store focusing on gyoza. There's only one location in all of Japan, located in Sapporo.

The map released this time uses icons to distinguish these four store types, and you can toggle their display on or off via layer switching.

Advance Preparation

Contacting the Official Website

Since I was going to perform scraping this time, I checked with the official website beforehand. They gave me a very warm response. Thanks to that, I immediately wanted to go eat there again.

Data Acquisition and Processing

This time, I'll use Python for scraping. I'll combine Playwright, pandas, and geopy to acquire and process the data.

Scraping: Playwright
Data Processing: pandas
DMS→DD Conversion: geopy

yamaokaya-data
└── script
    ├── scrape_yamaokaya.py
    ├── latlon_yamaokaya.py
    ├── column_yamaokaya.py
    ├── csv2geojson.py

Map Application

First, fork the Amazon Location Service v2 starter template. Then, add the files and code needed for the Yamaokaya Map.

MapLibre GL JS & Amazon Location Service Starter

Execution environment

node v24.4.1
npm v11.4.2

yamaokaya-map
├── LICENSE
├── README.md
├── dist
│   └── index.html
├── img
│   ├── README01.gif
│   ├── README02.png
│   └── README03.png
├── index.html
├── package-lock.json
├── package.json
├── public
│   ├── manifest.json
│   ├── data
│   │   ├── yama.geojson
│   │   ├── niboshi.geojson
│   │   ├── miso.geojson
│   │   └── gyouza.geojson
│   └── icons
│       ├── yama.png
│       ├── niboshi.png
│       ├── miso.png
│       └── gyouza.png
├── src
│   ├── main.ts
│   ├── style.css
│   └── vite-env.d.ts
├── tsconfig.json
└── vite.config.ts

Install the package

npm install

Publishing Settings in Amplify Gen2

Using the starter repository I forked, I’ll publish it on GitHub in the Amplify Console (Gen2), referencing an article I wrote previously.

https://memo.dayjournal.dev/memo/aws-amplify-016

Data Acquisition and Processing

Scraping

The script scrapes store information from the official website. Since the official site dynamically generates content, I use Playwright to control the browser and retrieve the data. From each store's detail page, I extract the store name, address, phone number, business hours, parking information, seat types, shower room availability, the detail page URL, and the store's location information.

Example of retrieving the store name

from playwright.sync_api import sync_playwright
import pandas as pd

def scrape_yamaokaya_shops():
    shops = []
    with sync_playwright() as p:
        browser = p.chromium.launch(headless=True)
        context = browser.new_context(
            user_agent='Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
        )
        context.set_default_timeout(10000)
        context.set_default_navigation_timeout(10000) 
        page = context.new_page()
        main_url = "https://www.yamaokaya.com/shops/"
        page.goto(main_url, wait_until='networkidle', timeout=10000)
        page.wait_for_timeout(5000)
        shop_links = page.eval_on_selector_all(
            'a[href*="/shops/"]',
            'els => [...new Set(els.map(el => el.href).filter(href => /shops\\/\\d+/.test(href)))]'
        )
        for url in shop_links:
            try:
                page.goto(url, wait_until='domcontentloaded', timeout=10000)
                page.wait_for_timeout(5000)
                name = page.evaluate("""() => {
                    const h = document.querySelector('h2, h1, .shop-name');
                    return h?.innerText?.trim() || document.title.split('|')[0].trim();
                }""")
                shops.append({'url': url, 'name': name or '不明'})
            except Exception as e:
                shops.append({'url': url, 'name': 'エラー'})
        browser.close()    
    return pd.DataFrame(shops)

if __name__ == "__main__":
    df = scrape_yamaokaya_shops()
    df.to_csv('yamaokaya_shops.csv', index=False, encoding='utf-8-sig')

DMS→DD Conversion

The location data scraped is in DMS (degrees, minutes, seconds) format. To display it with the map library, I convert it to DD format (decimal degrees). I use geopy to handle multiple conversion patterns.

Example of DMS→DD conversion

from typing import Tuple
from geopy import Point
# 変換前 "43°03'28.6""N 141°21'22.2""E"
def _convert_with_geopy(dms_string: str) -> Tuple[float, float]:
    cleaned = dms_string.replace('""', '"')
    point = Point(cleaned)
    return point.latitude, point.longitude

Column Name Change

Before converting the data to GeoJSON, I change Japanese column names to English.

Example of column name change

column_mapping = {
    '店舗名': 'store_name',
    '住所': 'address',
    '電話番号': 'phone_number',
    '営業時間': 'business_hours',
    '駐車場': 'parking',
    '座席の種類': 'seating_types',
    'シャワー室': 'shower_room',
    'その他': 'other_info'
}
df_renamed = df.rename(columns=column_mapping)

CSV to GeoJSON Conversion

Finally, I convert the CSV to GeoJSON format. Files are output separately for each store type.

Example of CSV to GeoJSON conversion

import json
import pandas as pd
def create_geojson_features(df):
    features = []
    for _, row in df.iterrows():
        properties = {}
        for col in df.columns:
            if col not in ['lat', 'lon']:
                value = row[col]
                if pd.isna(value):
                    properties[col] = None
                else:
                    properties[col] = str(value)
        feature = {
            "type": "Feature",
            "geometry": {
                "type": "Point",
                "coordinates": [row['lon'], row['lat']]
            },
            "properties": properties
        }
        features.append(feature)
    return features

GeoJSON output result

{
    "type": "Feature",
    "geometry": {
    "type": "Point",
    "coordinates": [
        141.3561,
        43.0579
    ]},
    "properties": {
        "store_name": "ラーメン山岡家 南2条店",
        "details": "https://www.yamaokaya.com/shops/1102/",
        "address": "札幌市中央区南2条西１丁目6-1",
        "phone_number": "(011) 242-4636",
        "business_hours": "5:00－翌4:00",
        "parking": "なし",
        "seating_types": "カウンター席: 13",
        "shower_room": "なし",
        "other_info": "まちなかのちいさなお店です。"
    }
},

Creating the Map Application

Setting the Background Map

For this project, I use MapLibre GL JS as the map library and Amazon Location Service for the background map.

import './style.css';
import 'maplibre-gl/dist/maplibre-gl.css';
import 'maplibre-gl-opacity/dist/maplibre-gl-opacity.css';
import maplibregl from 'maplibre-gl';
import OpacityControl from 'maplibre-gl-opacity';

const region = import.meta.env.VITE_REGION;
const mapApiKey = import.meta.env.VITE_MAP_API_KEY;
const mapName = import.meta.env.VITE_MAP_NAME;

const map = new maplibregl.Map({
    container: 'map',
    style: `https://maps.geo.${region}.amazonaws.com/maps/v0/maps/${mapName}/style-descriptor?key=${mapApiKey}`,
    center: [138.0000, 38.5000],
    zoom: baseZoom,
    maxZoom: 20
});

Layer Configuration

I set up layers for each store type and assign custom icons to them.

interface LayerConfig {
    name: string;
    iconPath: string;
    iconId: string;
    visible: boolean;
}
const layerConfigs: Record<string, LayerConfig> = {
    'gyouza': {
        name: '餃子の山岡家',
        iconPath: 'icons/gyouza.png',
        iconId: 'gyouza-icon',
        visible: true
    },
    'miso': {
        name: '味噌ラーメン山岡家',
        iconPath: 'icons/miso.png',
        iconId: 'miso-icon',
        visible: true
    },
    'niboshi': {
        name: '煮干しラーメン山岡家',
        iconPath: 'icons/niboshi.png',
        iconId: 'niboshi-icon',
        visible: true
    },
    'yama': {
        name: 'ラーメン山岡家',
        iconPath: 'icons/yama.png',
        iconId: 'yama-icon',
        visible: true
    }
};

Adding GeoJSON Layers

I add the GeoJSON data as layers. I configure the icon size to change based on the zoom level.

function addGeoJsonLayer(id: string, config: LayerConfig, data: GeoJSONData): void {
    map.addSource(id, {
        type: 'geojson',
        data: data
    });
    map.addLayer({
        id: id,
        type: 'symbol',
        source: id,
        layout: {
            'icon-image': config.iconId,
            'icon-size': [
                'interpolate',
                ['linear'],
                ['zoom'],
                6, baseIconSize * 0.5,
                10, baseIconSize * 0.6,
                14, baseIconSize * 0.7,
                18, baseIconSize * 0.8
            ],
            'icon-allow-overlap': true,
            'icon-ignore-placement': false,
        },
        paint: {
            'icon-opacity': 1.0,
        }
    });
}

Implementing Popups

Clicking a store icon displays the store information in a popup. It shows the address, phone number, business hours, parking information, seating types, etc.

function createPopupContent(props: StoreProperties): string {
    const contentParts: string[] = [];

    if (props.store_name) {
        contentParts.push(`<h3>${props.store_name}</h3>`);
    }

    const details: string[] = [];
    if (props.address) {
        details.push(`<strong>住所:</strong> ${props.address}`);
    }
    if (props.phone_number) {
        details.push(`<strong>電話:</strong> <a href="tel:${props.phone_number}">${props.phone_number}</a>`);
    }
    // ...
}

Layer Toggling

Implemented layer toggling (show/hide) using maplibre-gl-opacity.

const overLayers = {
    'yama': 'ラーメン山岡家',
    'niboshi': '煮干しラーメン山岡家',
    'miso': '味噌ラーメン山岡家',
    'gyouza': '餃子の山岡家',
};

const opacityControl = new OpacityControl({
    overLayers: overLayers,
    opacityControl: false
});
map.addControl(opacityControl, 'bottom-left');

Summary

This time, I built the "Yamaokaya Map (Unofficial)" using a structure that includes Playwright for scraping, geopy for DMS→DD conversion and CSV→GeoJSON conversion, and map display via MapLibre GL JS and Amazon Location Service. Visualizing this on a map reveals new insights. The northernmost store is in Wakkanai. Stores are located in surrounding areas rather than central Tokyo. While they have expanded into Kyushu, there are no stores in Shikoku. And there is only one Gyoza no Yamaokaya store nationwide. This way, Ramen Yamaokaya's store opening strategy becomes clear.

Please use this when searching for a nearby store or looking for Ramen Yamaokaya while traveling!

Monthly Amazon Location Service Updates - 2026.01

Yasunori Kirimoto — Sun, 01 Feb 2026 08:06:06 +0000

Monthly Amazon Location Service Updates - 2026.01

This is a summary of the January updates for Amazon Location Service.

2026.01 Updates

No updates

Other Info

Amazon Location Service Demo
Official Amazon Location Service demo.

Amazon Location Service Developer Guide
Official Amazon Location Service Documentation.

AWS Geospatial
Official AWS Geospatial samples.

maplibregljs-amazon-location-service-starter
Build environment to get started with Amazon Location Service.

dev.to
Articles on Amazon Location Service.

tags - Amazon Location Service
tags - Try
Notes on Amazon Location Service. (Japanese)

Monthly Amazon Location Service Updates - 2025.12

Yasunori Kirimoto for AWS Heroes ・ Jan 2

#amazonlocationservice #amazonlocationserviceupdates

Deploying the AWS re:Invent Map with AWS Amplify Hosting

Yasunori Kirimoto — Sun, 18 Jan 2026 07:51:52 +0000

About the AWS re:Invent Map

Have you heard of the AWS re:Invent Map?

AWS re:Invent Map: A PWA for attendees | Yasunori Kirimoto posted on the topic | LinkedIn

I have published the "AWS re:Invent Map." 🎉 This application displays the locations of AWS re:Invent venues, key places, nearby stores, and event venues. Users can get an overview of the entire event and check locations during the preparation phase. Additionally, during the re:Invent period, users can check these locations along with their current position. This application will surely be helpful for anyone attending re:Invent! 🚀 AWS re:Invent Map 🗺️ https://lnkd.in/gcCY_gCm This is a PWA and can be added to your mobile phone's home screen. How to add: ・iOS (Safari): Share button → "Add to Home Screen" ・Android (Chrome): Menu → "Add to Home Screen" This app is designed explicitly for re:Invent. If you need general local information, please use it in conjunction with other map applications. I welcome requests for adding data and features to the AWS re:Invent Map. While I cannot accommodate all requests, I appreciate your feedback. I hope you will share it with others!! 🤝 Map library: MapLibre GL JS Background map: Amazon Location Service - Open Data Style Hosting: AWS Amplify Domain: Cloudflare Data: DIY #reInvent #AWSreInvent #AWScommunity

linkedin.com

I built the re:Invent Map to help attendees at AWS re:Invent. It visualizes locations around the conference site, such as nearby hotels, restaurants, and session venues.

The application is deployed with Amplify Hosting. In this post, I'll walk through deploying with GitHub, configuring a custom subdomain, and enabling AWS WAF.

By the way, I also deploy the AWS Heroes Map and the Yamaokaya Map using Amplify Hosting!

#reinvent #awsreinvent | Yasunori Kirimoto

I contributed to the production of Werner Vogels keynote at AWS re:Invent 2025! Deeply honored to have my name listed in the Special Thanks section of the event newspaper. 📰 AWS Heroes Map 🗺️ https://lnkd.in/gWeVAv4j #reInvent #AWSreInvent

linkedin.com

#awshero #awscommunity | Yasunori Kirimoto

New AWS Heroes announced for November 2025 have been added to the "AWS Heroes Map." 🗺 With this application, we can find Heroes worldwide on the map. There are currently 265 AWS Heroes worldwide. 🎉 (Location information was geocoded from the address in the profile.) I hope you will share it with others!! Congratulations! 🎉 Dimple Vaghela, Rola Dali and Vivek Velso AWS Heroes Map https://lnkd.in/gWeVAv4j #AWSHero #AWScommunity

linkedin.com

Advance Preparation

First, create a GitHub repository and push your code to it. Use the re:Invent Map repository as an example.

Deployment with GitHub

Here’s how to deploy an app from a GitHub repository using the Amplify Console.

AWS Amplify → Click “Create a new app”.

Click “GitHub“ → Click “Next”.

Select the re:Invent Map repository and branch → Click “Next”.

Enter the application name → Click “Next“.

Click “Save and Deploy”.

After deployment completes, click “Access deployed URL”.

The deployed re:Invent Map will be displayed.

Setting Up a Custom Subdomain

Next, configure a subdomain for your custom domain (registered with Cloudflare) in Amplify.

Route 53 → Click “Create Hosted Zone”.

Subdomain name → Public Hosted Zone → Click “Create Hosted Zone”.

Copy all four newly created NS records.

Cloudflare Console → DNS Records → Click “Add Record”.

Add each NS record → Click “Save”.

Ensure all four NS records are added.

AWS Amplify → Custom Domains → Click “Add Domain”.

Select the subdomain → Click “Configure Domain”.

Select the branch and certificate → Click “Add Domain”.

The SSL certificate is being created.

The setup will be completed shortly.

Route 53 → Hosted Zone → Subdomain → The changes are now visible.

After setting up your custom domain, access “https://reinvent.dayjournal.dev”.

The re:Invent Map will appear from your custom domain.

WAF Configuration

Finally, configure the WAF.

Click “Enable Firewall”.

Click “Create New” → “Enable Firewall Protection” → “Add Firewall”.

The WAF is created once the status changes from “Associating” to “Enabled.”

I hope you found this article helpful. Now, here's an announcement from the Amplify Japan User Group.

🚀 AWS Amplify Conference 2026 🚀

AWS Amplify Conference 2026 will be held in Japan on Tuesday, January 20, 2026!

Hosted by the Amplify Japan User Group, this annual conference explores “The Appeal of Amplify for Accelerating New Ventures.” The morning features beginner-friendly workshops, while the afternoon showcases case studies from various companies.

aws-amplify-jp.github.io

Building a 3D Map Application Using Mapterhorn Terrain Data

Yasunori Kirimoto — Sun, 11 Jan 2026 23:25:08 +0000

About Mapterhorn

Have you heard of the geospatial project Mapterhorn?

Mapterhorn is an open data project that publishes terrain data. It creates terrain tiles from various open data sources, such as ESA’s Copernicus DEM and Switzerland’s swissALTI3D, and distributes them in the PMTiles format. The project is led by Oliver (formerly at MapLibre).

I also introduced Mapterhorn as a project to watch in my presentations at FOSS4G Hokkaido 2025 and FOSS4G Japan 2025.

Geospatialの世界最前線を探る [2025年版] - Speaker Deck

FOSS4G 2025 Japan 発表資料 https://www.osgeo.jp/foss4g-2025-japan/

speakerdeck.com

Dataset Overview

Mapterhorn creates terrain tiles by combining multiple open data sources.

Global Data

Data Source	Resolution	Zoom Level	Notes
Copernicus GLO-30	30m	z0-z12	ESA Global DEM

The global data is based on ESA’s Copernicus GLO-30 model, covering the entire world up to z12.

High-Resolution Data

In addition to global data, Mapterhorn also provides high-resolution data primarily using open DEM/LiDAR from European countries. For Switzerland specifically, swisstopo's swissALTI3D is used, which offers terrain data at a resolution of 0.5m.

Japan Data

Update (Dec 2025)): High-resolution data for Japan has been added.
✅ Japan, country-wide, 1 m, 5 m, 10 m

Add sources jp*: Japan, 1m, 5m, and 10m

Advance Preparation

Execution environment

node v24.4.1
npm v11.4.2

MapLibre GL JS Starter

Fork or download the MapLibre GL JS starter to your local environment and run it.

https://github.com/mug-jp/maplibregljs-starter

maplibregljs-starter
├── dist
│   └── index.html
├── img
├── src
│   ├── main.ts
│   ├── style.css
│   └── vite-env.d.ts
├── README.md
├── LICENSE
├── index.html
├── package-lock.json
├── package.json
├── tsconfig.json
└── vite.config.ts

Install the package

npm install

Install PMTiles as well

npm install pmtiles

package.json

{
  "name": "maplibregljs-starter",
  "version": "4.5.0",
  "description": "",
  "scripts": {
    "dev": "vite",
    "build": "tsc && vite build",
    "preview": "vite preview"
  },
  "keywords": [],
  "author": "MapLibre User Group Japan",
  "license": "ISC",
  "devDependencies": {
    "typescript": "^5.5.2",
    "vite": "^5.3.2"
  },
  "dependencies": {
    "maplibre-gl": "^4.5.0",
    "pmtiles": "^4.3.0"
  }
}

Creating the Map Application

Display the Mapterhorn terrain data. Modify src/main.ts.

import './style.css';
import 'maplibre-gl/dist/maplibre-gl.css';
import maplibregl from 'maplibre-gl';
import { Protocol } from 'pmtiles';

const protocol = new Protocol({ metadata: true });

maplibregl.addProtocol('mapterhorn', async (params, abortController) => {
    const [z, x, y] = params.url.replace('mapterhorn://', '').split('/').map(Number);
    const name = z <= 12 ? 'planet' : `6-${x >> (z - 6)}-${y >> (z - 6)}`;
    const url = `pmtiles://https://download.mapterhorn.com/${name}.pmtiles/${z}/${x}/${y}.webp`;
    const response = await protocol.tile({ ...params, url }, abortController);
    if (response['data'] === null) throw new Error(`Tile z=${z} x=${x} y=${y} not found.`);
    return response;
});

const map = new maplibregl.Map({
    container: 'map',
    hash: 'map',
    style: {
        version: 8,
        sources: {
            hillshadeSource: {
                type: 'raster-dem',
                tiles: ['mapterhorn://{z}/{x}/{y}'],
                encoding: 'terrarium',
                tileSize: 512,
                attribution: '<a href="https://mapterhorn.com/attribution">© Mapterhorn</a>'
            }
        },
        layers: [
            {
                id: 'hillshade',
                type: 'hillshade',
                source: 'hillshadeSource'
            }
        ]
    },
    center: [138.7782, 35.3019],
    zoom: 10
});

map.addControl(
    new maplibregl.NavigationControl({
        visualizePitch: true
    })
);

Start the local server

npm run dev

Finally, add 3D terrain rendering. Using MapLibre GL JS’s terrain feature enables 3D terrain visualization.

import './style.css';
import 'maplibre-gl/dist/maplibre-gl.css';
import maplibregl from 'maplibre-gl';
import { Protocol } from 'pmtiles';

const protocol = new Protocol({ metadata: true });

maplibregl.addProtocol('mapterhorn', async (params, abortController) => {
    const [z, x, y] = params.url.replace('mapterhorn://', '').split('/').map(Number);
    const name = z <= 12 ? 'planet' : `6-${x >> (z - 6)}-${y >> (z - 6)}`;
    const url = `pmtiles://https://download.mapterhorn.com/${name}.pmtiles/${z}/${x}/${y}.webp`;
    const response = await protocol.tile({ ...params, url }, abortController);
    if (response['data'] === null) throw new Error(`Tile z=${z} x=${x} y=${y} not found.`);
    return response;
});

const map = new maplibregl.Map({
    container: 'map',
    hash: 'map',
    style: {
        version: 8,
        sources: {
            MIERUNEMAP: {
                type: 'raster',
                tiles: ['https://tile.mierune.co.jp/mierune/{z}/{x}/{y}.png'],
                tileSize: 256,
                attribution:
                    "Maptiles by <a href='http://mierune.co.jp/' target='_blank'>MIERUNE</a>, under CC BY. Data by <a href='http://osm.org/copyright' target='_blank'>OpenStreetMap</a> contributors, under ODbL.",
            },
            terrainSource: {
                type: 'raster-dem',
                tiles: ['mapterhorn://{z}/{x}/{y}'],
                encoding: 'terrarium',
                tileSize: 512,
                attribution: '<a href="https://mapterhorn.com/attribution">© Mapterhorn</a>'
            }
        },
        layers: [
            {
                id: 'MIERUNEMAP',
                type: 'raster',
                source: 'MIERUNEMAP'
            },
            {
                id: 'hillshade',
                type: 'hillshade',
                source: 'terrainSource'
            }
        ],
        terrain: {
            source: 'terrainSource',
            exaggeration: 1.5
        }
    },
    center: [138.8016, 35.2395],
    zoom: 11,
    pitch: 60,
    bearing: -20
});

map.addControl(
    new maplibregl.NavigationControl({
        visualizePitch: true
    })
);

Summary of MapLibre User Group Japan Activities in 2025

Yasunori Kirimoto — Fri, 09 Jan 2026 13:18:35 +0000

Hello, I’m Yasunori Kirimoto of MapLibre User Group Japan (MUG-JP). In this article, we will introduce the main activities of MUG-JP in 2025.

About MapLibre User Group Japan (MUG-JP)

Please see this article for information about MUG-JP activities up to last year.

Yasunori Kirimoto for MapLibre User Group Japan

Dec 30 '24

Summary of MapLibre User Group Japan Activities in 2024

#maplibre #foss4g #gis

Comments

4 min read

Yasunori Kirimoto for MapLibre User Group Japan

Dec 29 '23

Summary of MapLibre User Group Japan Activities in 2023

#maplibre #foss4g #gis

Comments

4 min read

Summary of activities in 2025

MUG-JP Space Revival

We’ve revived MUG-JP Space, which we held monthly in 2023. After writing the 2024 summary, we held seven sessions in total, one each month. Previously, it was only live, but starting this year, we’re archiving episodes as podcasts. Please give them a listen. We’ll be taking a break again starting in August…

MUG-JP Space

MapLibre User Group Japan Space #008

Date: December 26, 2024
MUG-JP 2024 Year in Review

MapLibre User Group Japan Space #009

Date: January 21, 2025
MapLibre Updates & Geospatial Chat for January 2025

MapLibre User Group Japan Space #010

Date: February 25, 2025
MapLibre Updates & Geospatial Chat for February 2025

MapLibre User Group Japan Space #011

Date: March 27, 2025
MapLibre Updates & Geospatial Chat for March 2025

MapLibre User Group Japan Space #012

Date: April 21, 2025
MapLibre Updates & Geospatial Chat for April 2025

MapLibre User Group Japan Space #013

Date: May 27, 2025
MapLibre Updates & Geospatial Chat for April 2025

MapLibre User Group Japan Space #014

Date: June 28, 2025
MapLibre Updates & Geospatial Chat for May 2025

MapLibre User Group Japan Space #015

Date: July 20, 2025
MapLibre Updates & Geospatial Chat for June 2025

Online meetup

We held an online meetup again this year to share trends and technologies related to MapLibre, FOSS4G, and web maps. This was the second time we held the meetup, and we were able to share a variety of knowledge by having more people participate remotely.

MapLibre Meetup Japan #04

Date: March 18, 2025
Participants: 76
Hands-On Session on Svelte MapLibre GL at FOSS4G Hokkaido 2024 | Norihiro Narayama
Prototyping a Web App to Assist OpenStreetMap Receipt Mapping (MUG-JP ver) | Tom Konda
Deep Dive into MapLibre's Japanese Fonts | Kanahiro Iguchi
How to Integrate MapLibre GL JS and deck.gl? [Review Edition] | ALT9800

MapLibre Meetup Japan #05

Date: July 15, 2024
Participants: 88
I wrote a shader to use GeoArrow with MapLibre | Hiroaki Yutani
What I've done and want to do next with Flutter×MapLibre | Ryutaro Iseki
Reviewing DEM RGB Encoding Methods (TerrainRGB/Terrarium/GSI Elevation Tiles) | Kanahiro Iguchi
The Open Data and Backstory Supporting the Expo Maniac Map | K.Sakanoshita

Presenters will receive a MUG-JP pin badge and be added to the MUG-JP Contributors Map!

Other activities

As for other activities, we also gave a talk at related events.

Speaker at "FOSS4G 2024 Hokkaido"

Summary

We looked back on the MapLibre User Group Japan activities in 2025.

We hope that this article has sparked some interest in MUG-JP. Please try using MapLibre products for yourself. We also welcome you to participate in our events.

MUG-JP is a community that works at its own pace, but we will continue our activities relaxedly. We are thinking of holding events online and offline again next year, so if you would like to give a presentation, please get in touch.

Official Web Site
https://mug-jp.org

GitHub
https://github.com/mug-jp

dev.to
https://dev.to/mug-jp

Yasunori Kirimoto for MapLibre User Group Japan

Dec 30 '24

Summary of MapLibre User Group Japan Activities in 2024

#maplibre #foss4g #gis

Comments

4 min read

Yasunori Kirimoto for MapLibre User Group Japan

Dec 29 '23

Summary of MapLibre User Group Japan Activities in 2023

#maplibre #foss4g #gis

Comments

4 min read

Kanahiro Iguchi for MapLibre User Group Japan

Nov 3 '24

Introduction to chiitiler: Serverless Raster Tile Server

Comments

3 min read

Yasunori Kirimoto for MapLibre User Group Japan

Sep 21 '23

Building a Map Application with MapLibre GL JS and Svelte

#maplibre #svelte #gis #foss4g

Comments 1

3 min read

Yasunori Kirimoto for MapLibre User Group Japan

Sep 18 '23

Building a Map Application with MapLibre GL JS and Vue.js (script setup)

#maplibre #vue #vite #foss4g

Comments

3 min read

Monthly Amazon Location Service Updates - 2025.12

Yasunori Kirimoto — Fri, 02 Jan 2026 12:24:15 +0000

Monthly Amazon Location Service Updates - 2025.12

This is a summary of the December updates for Amazon Location Service.

2025.12 Updates

No updates

Other Info

Amazon Location Service Demo
Official Amazon Location Service demo.

Amazon Location Service Developer Guide
Official Amazon Location Service Documentation.

AWS Geospatial
Official AWS Geospatial samples.

maplibregljs-amazon-location-service-starter
Build environment to get started with Amazon Location Service.

dev.to
Articles on Amazon Location Service.

tags - Amazon Location Service
tags - Try
Notes on Amazon Location Service. (Japanese)

Yasunori Kirimoto for AWS Heroes

Dec 16 '25

Monthly Amazon Location Service Updates - 2025.11

#amazonlocationservice #amplifygeo #amazonlocationserviceupdates

Comments

1 min read

Monthly Amazon Location Service Updates - 2025.11

Yasunori Kirimoto — Tue, 16 Dec 2025 10:47:35 +0000

Monthly Amazon Location Service Updates - 2025.11

This is a summary of the November updates for Amazon Location Service.

2025.11 Updates

Amazon Location Service introduces Address Form Solution Builder
AWS announced Address Form Solution Builder from Amazon Location Service, enabling developers to build a customized address form, without writing any code, that helps their users enter their address with predictive suggestions, autofill address fields such as postal code, and customizable layout.

Other Info

Amazon Location Service Demo
Official Amazon Location Service demo.

Amazon Location Service Developer Guide
Official Amazon Location Service Documentation.

AWS Geospatial
Official AWS Geospatial samples.

Amplify Geo Docs
Official Amplify Geo Docs.

maplibregljs-amazon-location-service-starter
Build environment to get started with Amazon Location Service.

dev.to
Articles on Amazon Location Service.

tags - Amazon Location Service
tags - Try
Notes on Amazon Location Service. (Japanese)

Yasunori Kirimoto for AWS Heroes

Nov 3 '25

Monthly Amazon Location Service Updates - 2025.10

#amazonlocationservice #amplifygeo #amazonlocationserviceupdates

Comments

2 min read

Monthly Amazon Location Service Updates - 2025.10

Yasunori Kirimoto — Mon, 03 Nov 2025 12:32:36 +0000

Monthly Amazon Location Service Updates - 2025.10

This is a summary of the October updates for Amazon Location Service.

2025.10 Updates

Amazon Location Service introduces new API key restrictions
This new capability helps organizations that need to restrict API access to specific mobile applications, providing improved security controls for location services across their application portfolio.

Amazon Location Service Introduces New Map Styling Features for Enhanced Customization
Users can further customize maps with terrain visualization, contour lines, real-time traffic data, and transportation-specific routing information.

Amazon Location Service Updates for Vietnam's New Administrative Boundaries
Updated its mapping data to reflect Vietnam's recent administrative reorganization.

Other Info

Amazon Location Service Demo
Official Amazon Location Service demo.

Amazon Location Service Developer Guide
Official Amazon Location Service Documentation.

AWS Geospatial
Official AWS Geospatial samples.

Amplify Geo Docs
Official Amplify Geo Docs.

maplibregljs-amazon-location-service-starter
Build environment to get started with Amazon Location Service.

dev.to
Articles on Amazon Location Service.

tags - Amazon Location Service
tags - Try
Notes on Amazon Location Service. (Japanese)

Yasunori Kirimoto for AWS Heroes

Oct 4 '25

Monthly Amazon Location Service Updates - 2025.09

#amazonlocationservice #amplifygeo #amazonlocationserviceupdates

Comments

1 min read

Monthly Amazon Location Service Updates - 2025.09

Yasunori Kirimoto — Sat, 04 Oct 2025 06:31:40 +0000

Monthly Amazon Location Service Updates - 2025.09

This is a summary of the September updates for Amazon Location Service.

2025.09 Updates

No updates

Other Info

Amazon Location Service Demo
Official Amazon Location Service demo.

Amazon Location Service Developer Guide
Official Amazon Location Service Documentation.

AWS Geospatial
Official AWS Geospatial samples.

Amplify Geo Docs
Official Amplify Geo Docs.

maplibregljs-amazon-location-service-starter
Build environment to get started with Amazon Location Service.

dev.to
Articles on Amazon Location Service.

tags - Amazon Location Service
tags - Try
Notes on Amazon Location Service. (Japanese)

Yasunori Kirimoto for AWS Heroes

Sep 6 '25

Monthly Amazon Location Service Updates - 2025.08

#amazonlocationservice #amplifygeo #amazonlocationserviceupdates

Comments

1 min read

Monthly Amazon Location Service Updates - 2025.08

Yasunori Kirimoto — Sat, 06 Sep 2025 11:29:57 +0000

Monthly Amazon Location Service Updates - 2025.08

This is a summary of the August updates for Amazon Location Service.

2025.08 Updates

Amazon Location - Geofencing now supports multipolygon and polygon with exclusion zones
Now supports multi-polygons and exclusion zones, simplifying creation and geofencing of complex boundaries.

Other Info

Amazon Location Service Demo
Official Amazon Location Service demo.

Amazon Location Service Developer Guide
Official Amazon Location Service Documentation.

AWS Geospatial
Official AWS Geospatial samples.

Amplify Geo Docs
Official Amplify Geo Docs.

maplibregljs-amazon-location-service-starter
Build environment to get started with Amazon Location Service.

dev.to
Articles on Amazon Location Service.

tags - Amazon Location Service
tags - Try
Notes on Amazon Location Service. (Japanese)

Monthly Amazon Location Service Updates - 2025.07

Yasunori Kirimoto for AWS Heroes ・ Aug 16

#amazonlocationservice #amplifygeo #amazonlocationserviceupdates

Forem: Yasunori Kirimoto

Monthly Amazon Location Service Updates - 2026.03

Monthly Amazon Location Service Updates - 2026.03

2026.03 Updates

Other Info

Related Articles

Monthly Amazon Location Service Updates - 2026.02

Monthly Amazon Location Service Updates - 2026.02

2026.02 Updates

Other Info

Related Articles

Monthly Amazon Location Service Updates - 2026.01

Yasunori Kirimoto for AWS Heroes ・ Feb 1

Building the Yamaokaya Map (Unofficial)

About Yamaokaya Map (Unofficial)

Ramen Yamaokaya Store Types

Advance Preparation

Contacting the Official Website

Data Acquisition and Processing

Map Application

Publishing Settings in Amplify Gen2

Data Acquisition and Processing

Scraping

DMS→DD Conversion

Column Name Change

CSV to GeoJSON Conversion

Creating the Map Application

Setting the Background Map

Layer Configuration

Adding GeoJSON Layers

Implementing Popups

Layer Toggling

Summary

Monthly Amazon Location Service Updates - 2026.01

Monthly Amazon Location Service Updates - 2026.01

2026.01 Updates

Other Info

Related Articles

Monthly Amazon Location Service Updates - 2025.12

Yasunori Kirimoto for AWS Heroes ・ Jan 2

Deploying the AWS re:Invent Map with AWS Amplify Hosting

About the AWS re:Invent Map

Advance Preparation

Deployment with GitHub

Setting Up a Custom Subdomain

WAF Configuration

Building a 3D Map Application Using Mapterhorn Terrain Data

About Mapterhorn

Dataset Overview

Global Data

High-Resolution Data

Japan Data

Advance Preparation

MapLibre GL JS Starter

Creating the Map Application

Summary of MapLibre User Group Japan Activities in 2025

About MapLibre User Group Japan (MUG-JP)

Summary of activities in 2025

MUG-JP Space Revival

Online meetup

Other activities

Summary

Monthly Amazon Location Service Updates - 2025.12

Monthly Amazon Location Service Updates - 2025.12

2025.12 Updates

Other Info

Related Articles

Monthly Amazon Location Service Updates - 2025.11

Monthly Amazon Location Service Updates - 2025.11

2025.11 Updates

Other Info

Related Articles

Monthly Amazon Location Service Updates - 2025.10

Monthly Amazon Location Service Updates - 2025.10

2025.10 Updates

Other Info

Related Articles

Monthly Amazon Location Service Updates - 2025.09

Monthly Amazon Location Service Updates - 2025.09

2025.09 Updates