WHERE? GeoJSON -> API

Where? turns static GeoJSON files into queryable APIs. This is particularly useful for filtering huge datasets by location and/or properties.

Have a look at the demo application to see how it works.

Features

• makes GeoJSON FeatureCollections queryable (supports spatial and property-based queries)
• returns valid GeoJSON
• supports local and hosted GeoJSON files
• supports multiple GeoJSON files
• supports cron-like scheduling to update datasets
• Generates API-Documentation (mostly) automaticly

Getting Started

These instructions describe how to run Where? on your local machine for development and testing. See deploy on Heroku for notes on how to deploy the project.

Prerequisites

Where? requieres Node.js. If you don’t have it yet, go download and install Node.js.

Installing

Grab a copy of Where?, open your Terminal (or other Command Line Interface), cd into the directory and install the dependencies using npm:

npm install

To test the application run this command:

node where.js

Configuration

Open config.json to set up Where? according to your needs.

Property	Description
port	Sets server port (may be overwritten by environment variable PORT). Default: 65432
data_dir	directory for local GeoJSON-files. Default: data/
level	path to FeatureCollection in GeoJSON file structure (may be overwritten in file specific properties). Default: features
options	default options for queries and server responses. (may be overwritten in file specific options)
options.limit	number of results per request. Default 20
options.maxlimit	maximal number of results per request (may not be overwritten by options set in request). Use -1 to lift limit. Default: 100
options.page	page of query results. Default: 0
options.sortby	Property to sort query results by. Use -1 to skip sorting. Default: -1
options.desc	Sorting order. Default: false (ascending)
options.properties	`
files	Queryable files. Each file is described in an object, while the object-key serves as a unique identifier (referencing many and/or huge JSON files, may result in high memory-consumption)
files[key]	file specific properties.
files[key].url	url to hosted JSON file (for local files use files[key].path instead)
files[key].path	path to local JSON file (for hosted files use files[key].url instead)
files[key].level	overwrites level
files[key].schedule	Automatically update datasets at specified schedule. Takes a Cron-style string (e.g. * 10 3 * * 3 to update the file every Wednesday at 03:10 am). Read more
files[key].options	overwrites options
docs	Enables API documentation. Default: true
title	Page title used in documentation. Default: WHERE? API Documentation
description	API-Description used in documentation
hostname	Hostname used in documentation. E.g. http://example.com
examples	Query examples shown in documentation
examples[?].url	Query
examples[?].description	Descritption

Deploy on Heroku

Deployment on Heroku is done in a few steps:

1. Fork your own copy of this repository to your account
2. Modify config.json to fit your needs
3. Sign in to Heroku
4. Create a new App
5. Choose an App Name and Runtime Selection
6. Under Deployment Method choose GitHub
7. Connect Heroku with your GitHub Account
8. Select the repository
9. Under Manual Deploy choose your Branch and click on Deploy Branch
10. Wait
11. Done

Licence

Copyright 2016 Fidel Thomet Licensed under the MIT License.