In this tutorial, we will learn 3 types of model relationships in Django. Let’s go through them one by one with examples. Setup Environment First of all, let’s create the project environment. Run the commands in the snippet below. #create project folder mkdir django_model_relationship cd django_model_relationship #setup virtual environment python3 -m venv venv…

By default, the spring boot transaction is auto-commit. Every single SQL statement is in its own transaction and will commit after execution. Take a look at the below example, the product is inserted into the database even though an exception has been raised. public…

Django’s transaction management provides a robust mechanism to handle database transactions. In this article, we’ll explore the transaction atomic feature and how it ensures data consistency and integrity in Django applications. …

In Spring, a transaction represents a single unit of work that needs to be performed atomically — either all the changes to the database must be committed or none of them should be. …

In this tutorial, we will walk through the step by step to create a simple chat application, where users can exchange messages in real-time. Prerequisites Before we begin, you should have the following installed on your system: Python 3.6 or higher Node.js 14 or higher Django 3 or higher Django Channels…

This is a famous interview question that you may be asked by the interviewer. When a Producer and Consumer both are sharing the same queue to put and consume items. This may cause the queue out of synchronize. Problem A producer trying to add an item into a full buffer. A…

AWS CodeStar provides a unified interface to develop, build, deploy and monitor applications on AWS. Referring back to our previous articles Build CI/CD Pipeline for Serverless Applications, we spent an amount of time integrating many AWS services such as the CodePipeline, CodeCommit, CodeBuild, CodeDeploy, and IAM roles. With AWS CodeStar…

Learn Django authentication system by implementing token authentication, creating a custom user, user manager, & permissions. — In this post, we will learn the Django authentication system by implementing token authentication, and creating a custom user, user manager, and permissions in Django. By default, Django has a User model that is ready to use for authentication. Django authenticates a user using a username and password.

AWS does support NoSQL databases such as DynamoDB and DocumentDB but not MongoDB. So if you would like to host your MongoDB to the AWS cloud but do not want to migrate to another DB, you may install it yourself. In this tutorial, we learn how to install MongoDB in…