Ingest geojson file into Elasticsearch index. Each feature in the FeatureCollection corresponds to a document in Elasticsearch.

geojson_to_index.js

const fs = require("fs");
const elasticsearch = require('elasticsearch');
const oboe = require('oboe');

const geojsonInput = process.argv[2] || 'feature_collection.geojson';
const indexname = process.argv[3] || geojsonInput.split('.')[0] || 'feature_collection';
const geometryFieldName = 'geometry';
const shape_type = process.argv[4] || 'geo_shape';

if (shape_type !== 'geo_point' && shape_type !== 'geo_shape') {
    console.error(`Invalid shapetype ${shape_type}`);
    return;
}

async function ingest() {


    const esClient = new elasticsearch.Client({
        host: 'elastic:changeme@localhost:9200',
        version: '7.1',
        // log: 'trace'
    });


    try {
        await esClient.ping({
            requestTimeout: 1000
        });
    } catch (e) {
        console.error('Cannot reach Elasticsearch', e);
        throw e;
    }

    try {
        await esClient.indices.delete({
            index: indexname
        });
    } catch (e) {
        console.warn(e);
    }

    try {
        console.log('shape type', shape_type);
        await esClient.indices.create({
            index: indexname,
            body: {
                mappings: {
                    "properties": {
                        [geometryFieldName]: {
                            "type": shape_type,
                            "ignore_malformed": true
                        }
                    }
                }
            }
        });
    } catch (e) {
        console.error(e);
        throw e;
    }

    const readStream = fs.createReadStream(geojsonInput);
    let i = 0;
    oboe(readStream)
        .node('features.*',async (feature) => {

            const geometry = shape_type === 'geo_point' ? feature.geometry.coordinates : feature.geometry;
            const doc = {
                ...feature.properties,
                [geometryFieldName]: geometry
            };
            try {
                await esClient.create({
                    id: i++,
                    index: indexname,
                    // type: '_doc', //ES 80 does not use types
                    body: doc
                });
                console.log(`Created ${i}`);
            } catch (e) {
                console.error(e);
                throw e;
            }
        })
        .done(()=>{
            console.log('done processing');
        });
}

ingest();

Requires elasticsearch and oboe dependency.

npm install elasticsearch
npm install oboe

Example command: > node ./geojson_to_index.js boroughs.json boroughs geo_shape