koop-provider-mongodb

This provider accesses a collection of documents in MongoDB, which translate into GeoJSON and Geoserviceslater.

This is provider was created from the koop-provider-sample that demonstrates how to build a Koop Provider.

Required:

• node.js
• mongoDB

Install

To install/use this provider you first need a working installation of Koop. For information on using Koop, see https://github.com/esri/koop.

Getting started

1. Create a directory:

$ cd ~/Desktop
$ mkdir my_project
$ cd my_project

1. To execute in the project:

$ npm init -y

npm init -y: generate the package.json file with default options (without asking any questions)

1. Create server.js and add content:

$ touch server.js

process.on('SIGINT', () => process.exit(0))
process.on('SIGTERM', () => process.exit(0))

const Koop = require('koop')
const koop = new Koop()

const config = require('config')

const provider = require('./index.js')
koop.register(provider)

const PORT = 8080
koop.server.listen(PORT);

1. Create configuration:

$ mkdir config
$ cd config
$ touch default.json

1. Fill default.json with proper data

{
 "mongodb": {
   "url": MongoDB connection string,
   "databasename": Database name,
   "collectionname": Collection name,
   "field_id": Request field (:id),
   "latitude": Latitude field database,
   "longitude":Longitude field database,
   "projectObj":fields to return in the documents that match the query filter.
   }
}

1. Install dependencies: You must install the same version of koop as the provider.

$ npm i [email protected]
$ npm i koop-provider-mongodb

1. Start

node server.js

1. If you need to debug it

node --inspect-brk server.js

Usage

By default, Koop will start listening on http://localhost:8080.

You can issue a request by using:

$ curl http://localhost:8080/mongodb/:id/FeatureServer0/query

Any query-parameters added to the request URL can accessed within getData and leveraged for data fetching purposes.

Example

If you need to check some example, you can visit the repository

Resources

• http://koopjs.github.io/
• https://github.com/koopjs/koop-provider-file-geojson
• https://github.com/koopjs/koop-provider-sample.git