How to Get Started with Momentum: A Guide for Developers

July 30, 2020

Welcome to your ultimate guide on Momentum, an open-source integration testing tool that ensures your backend code is production-ready. With its powerful features, Momentum analyzes your codebase, generates test plans, and validates behaviors, making it an invaluable asset for developers aiming for quality and efficiency.

Introduction

Momentum is designed to analyze your codebase and ensure that every change you push is properly tested. By generating visualizations of your test plans and identifying potential impacts, it equips developers with the insights needed for smooth deployments.

What is a behavior?

A behavior is essentially the functionality or task you intend your code to perform. For example, it could range from deleting a document using an API to creating a new user in a database. Some behaviors may involve third-party integrations, like fetching data from a payment API—a multifaceted operation, indeed!

Here’s how Momentum can help you!

blast radius

Blast Radius: Determine which endpoints could potentially be affected by your code changes, helping you focus your testing efforts.

dependency visualization

Dependency Visualization: Get a clear picture of your code’s dependencies and how they interact.

behavior detection

Behavior Identification: Automate the detection of behaviors in your code and generate testing plans accordingly.

code generation

Code Generation: Generate test code for all identified behaviors and execute them locally with Momentum.

code run

Run Code in Local Dev Environment: Integrate easily with your existing setup, avoiding the hassle of additional configurations.

code debugging

Debug Code: Utilizing the stack trace, Momentum can intelligently diagnose issues and suggest solutions.

Installation

Getting started with Momentum is as simple as following these steps:

Steps

Clone the repository:

git clone https://github.com/getmomentum/momentum-core.git
cd momentum-core

Set up the virtual environment:

python -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt

Setup keys and .env: Instructions [here](https://docs.momentum.sh/getting-started/installation/cloud-integrations).
Start the application:

chmod +x start_momentum.sh
./start_momentum.sh

Usage

After installing Momentum, access the application at localhost:8001. Key functionalities include:

User Authentication
Parsing Codebase
Listing Parsed Projects and Branches
Generating Blast Radius
Visualizing Dependencies and Flow Graphs
Generating and Setting Up Test Plans

For detailed usage instructions, visit the Momentum Documentation.

Contributing

We welcome contributions! This can include enhancing documentation, writing code improvements, or contributing tests. Here’s how to contribute:

Fork the repository.
Create a new branch (git checkout -b feature-branch).
Commit your changes (git commit -am "Add new feature").
Push to the branch (git push origin feature-branch).
Open a Pull Request.

Refer to the Contributing Guide for more details.

License

This project is licensed under the Apache 2.0 License. See the LICENSE file for details.

Troubleshooting

In case you face any issues while using Momentum, here are some troubleshooting tips:

Check that your virtual environment is activated and all dependencies are installed correctly.
Verify that you’ve set up the necessary keys and keys in your .env file.
Ensure that the application has been started correctly and is listening on the specified port.
If you encounter bugs, feel free to report them on our GitHub issues page.

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