An example application to work with polygons in geojson data

Works on Python 3.7 with Django 2.2/ Django REST Framework 3. Fast search querying geodata provided by PostgreSQL 11 with PostGIS Test service using PostMan, here is sample documentation

About

Allows to create, update, delete, and get polygons and take a lat/lng pair as arguments and return a list of all polygons that include the given lat/lng

See requirements.txt for installed packages and the used versions.

Example guide based on Ubuntu 18.04 installation

Usage

Install PostgreSQL with PostGIS

sudo apt install binutils
echo "deb http://apt.postgresql.org/pub/repos/apt/ bionic-pgdg main" | sudo tee /etc/apt/sources.list.d/pgdg.list
sudo nano  /etc/apt/sources.list.d/pgdg.list
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update

sudo apt-get install postgresql-11 postgresql-server-dev-11 postgis

sudo -u postgres psql postgres

create user --superuser geodjango  with password 'geopassword';

alter role geodjango set client_encoding to 'utf8';

alter role geodjango set default_transaction_isolation to 'read committed';

create database geodjango owner geodjango;
alter user geodjango createdb;

CREATE EXTENSION postgis;

Getting source from the git

Install the required requirements.txt in the global Python 3 environment or in a virtual Python 3 environment. The latter has the advantage that the packages are isolated from other projects and also from the system wide installed global once. If things get messed up, the virtual environment can just be deleted and created from scratch again. For more informations about virtual environments in Python 3, see venv1_ and venv2_ .

cd ~
mkdir geojson-app
cd geojson-app
git clone https://github.com/A-Iskakov/django-geojson-app
sudo pip3 install -r requirements.txt
python3 manage.py runserver 0.0.0.0:8000