SQL injections are a category of web application security vulnerabilities that can affect both relational databases and NoSQL data stores.
How security flaws work: SQL injection is an approachable primer on the history and danger of how unsanitized inputs to a database work.
Preventing SQL injections provides a PostgreSQL and psycopg2 example for how to avoid getting bit by a SQL injection vulnerability.
Securing your site like it's 1999 covers a bunch of common web application vulnerabilities including SQL injection.
Fix errors in your Python code before your users see them by monitoring with Rollbar.
Deploy web apps with the Ansible configuration management tool.
Build microservices with Docker, Flask & React in this great course.