This repo contains geojson of Indonesia's cities.
The data source is from this repo: https://github.com/ArrayAccess/Indonesia-Postal-And-Area
But I only need the cities thus I'm not using all the data there.
Here is GeoJSON's definition from Internet Engineering Task Force(IETF):
GeoJSON is a geospatial data interchange format based on JavaScript Object Notation (JSON). It defines several types of JSON objects and the manner in which they are combined to represent data about geographic features, their properties, and their spatial extents. GeoJSON uses a geographic coordinate reference system, World Geodetic System 1984, and units of decimal degrees.
Basically GeoJSON format is like:
{
"type": "Feature",
"geometry": {
"type": "Point",
"coordinates": [125.6, 10.1]
},
"properties": {
"name": "Dinagat Islands"
}
}
//source: geojson.org
GeoJSON has some of geometry types that you may see more on: https://tools.ietf.org/html/rfc7946#page-7
I'm using Javascript with File System Library to read the directories and unify the json files there into one file.
Clone the data source repo first to the same directory with this repo. Then run node fetcher.js to generate the file
The output is json file (in GeoJSON format) that contains combined json from all cities in Indonesia
The file size is about 150 MB (Mega Bytes)
If you want to know more about GeoJSON, I suggest you to visit some of this websites:
- GeoJSON RFC: https://tools.ietf.org/html/rfc7946
- Wiki GeoJSON: https://en.wikipedia.org/wiki/GeoJSON
- Try and Preview GeoJSON: http://geojson.io/