This post is meant for testers who have to work with Apache Kafka. In this blog, I will show how to build a real-time data streaming pipeline to capture data from Neo4j and stream it to a Flask app by using Kafka. The post has a lot of information so even folks with just superficial knowledge of Apache Kafka can […]
Real-time Data Streaming: Neo4j to Flask using Kafka Connect
Building Custom Operator in Airflow for external API calls
In this blog, I will show how to build a Custom Operator in Airflow to make calls to external APIs. As we do this, we will see how to use secrets in Airflow, make tasks communicate with each other and interpret the output of an SSH Operator. Although this blog refers to posting messages to Skype, all it does is […]
Add Google Sign-In to your Flask app
Recently, I integrated SSO with Google Sign-In into a web application using the oauthlib library. While working on this project, I found plenty of resources on SSO and oauthlib separately, but struggled to find a tutorial that could guide me through the setup of Google Sign-In using oauthlib in a timely manner. Therefore, I’ve written this post to provide a […]
Testing AWS Lambda Functions with Batch Messages
We find most testers just run the most basic tests on Lambdas. One technique that has helped us discover more bugs when testing Lambdas at Qxf2 is to send batch messages to the SQS that triggers the Lambda. Often times, when you (the tester) send batch messages and “something goes wrong”, you need to be able to triage the cause […]
Combining Rust and Py03 with Python
Recently, Qxf2 has been transitioning to Rust and has been writing many blogs on various topics related to Rust. The main aim of these blogs is to document our progress. In this post, I am writing about how I used Py03/maturin tool to call a Rust library from Python. We have initiated a Rust-based project called “meme-generator” to generate attention-grabbing […]
Parameterize Tests in Rust: rstest
This post will discuss how to parameterize tests in Rust. Qxf2 likes the fact that Rust makes testing a first class citizen of the language. It provides a test runner out of the box. However, coming from Python land, we missed one feature – test parametrization. So went about looking for crates that could help. We have found rstest to […]
Rust Selenium Tests for Beginners
I created a repository of working examples for test automation on the web UI using the thirty-four crate. Beginners often have trouble finding good articles with fully working Rust code, especially professional testers who are learning the language along with UI automation. Therefore, I created something for this niche. If you are new to Rust testing and wondering how to […]
Investigating Data Loss: A Forensic Approach
Testing these days spills onto production too. Testers from Qxf2 have been able to show value by knowing how to trace transactions across multiple forensic tools. This post is for testers who have always wanted some insight into how to investigate issues in production but never had the opportunity. Background Testing in production also is a good idea. We were […]
Automate Rust Lambda deploy using GitHub Actions
We are open-sourcing a GitHub Action that will let you deploy AWS Lambdas written in Rust. This helps us automate deploying Rust AWS Lambda functions using GitHub Actions. If you are interested in the implementation details of this GitHub Action, you can look at the source code here. You can also file issues in that repository to ask for any […]
Generate CPU load using Python
Problem: How do I spike up my CPU load? Recently at one of our client engagement, for one of our tests, we needed to spike up CPU usage in a controlled manner on some of our Unix servers. One way to do this was to generate a specific amount of load for a specific amount of time. This was a […]