This is an exercise to make PostgreSQL queries on a database using python as a web server. Queries are done on a log database of a news paper server.
Python 3.6.4, PostgreSQL 9.5.11, Ubuntu 16.04.3 LTS VM on Vagrant
- Extract
newdata.sql
fromnewsdata.zip
file, which is a PostgreSQL database dump. - Connect it to a PostgreSQL database named news with
psql -d news -f newsdata.sql
.- If you wish to name your database with a different name, then it has to be updated in the python code
logAnalysis.py
where the get function tries to connect to the database.
- If you wish to name your database with a different name, then it has to be updated in the python code
- Run the
logAnalysis.py
using python 3. - Open localhost:8000 or 127.0.0.1:8000 in any browser.
- Wait for a while for the queries to run and load the results.
-
Python code
logAnalysis.py
runs a simple python server (for ever) on localhost:8000 address. -
As soon as it gets a HTTP GET request, it connects to the news database and sends three queries (PostgreSQL) for the three questions from the exercise description.
-
Results are sent back as plain text with a 200 status code.
Note: News database was setup initially on a Linux VM (Vagrant).