LeetCode Playground

A small project for me to create a playground for Java LeetCode challenges. Before that I always copied the code manually into IntelliJ and created the testcases. As a small additional challenge, I wanted to automate this process. For IntelliJ there is actually already a plugin to open a challenge directly in the IDE. Unfortunately I didn't find a way to debug the code locally.

With this project, I would like to focus on the following points:

• to have a simple solution for the manual process
• work with GraphQL (client side)
• Java code generation
• use one of the latest Java lts (update to Java 21 soon)
• use Gradle with Kotlin build configuration
• maybe writing a IntelliJ plugin in the future

Requirements

• Java 17
• Gradle

Getting started

1. Create a file named "session-token.txt" in the root directory and paste your session token. You can get your session token from a browser session visiting https://leetcode.com/.
2. Change the value of PlaygroundCreator.QUESTION_SLUG to the question slug you want to create. You can find the question slug in the url here: https://leetcode.com/problems/%QUESTION_SLUG%/description/
3. Run the main method of PlaygroundCreator

Project package structure

├── src/main/java
│   ├── com/github/ir31k0
│   │   ├── conversion                  # Conversion logics, for various conversions
│   │   ├── data                        # Data and implementations needed throughout the project
│   │   ├── helper                      # Small trivial tasks that are needed throughout the project
│   │   ├── query                       # Wrapper classes for the GraphQL queries
│   │   ├── response                    # Responses from the HTTP requests to LeetCode
│   │   ├── task                        # Encapsulation of the tasks to create a playground
│   │   ├── PlaygroundCreator.java      # The main class to create the playground

Todos / ideas

• solve the todos in the code
• extend the types in the conversion package
• refactor the query classes
• find a better solution for the Global java class?
• refactor the RequestHelper class
• update to Java 21
• create a UI?
• change the project to a IntelliJ plugin? maybe additional?

Contribution

If you want to contribute to the project, you are welcome. Create issues for bugs and requests or create a merge request if you want to extend the project. If you are unsure about an extension, feel free to ask with an issue for now. I don't want to "over-engineer" the project, but I am open for new ideas.

License

Distributed under the MIT License. See LICENSE.txt for more information.