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DavHau 5c548ee62c docs: add API guidelines

2023-12-01 16:28:14 +07:00

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Website Template

Welcome to our website template repository! This template is designed to help you and your team build high-quality websites efficiently. We've carefully chosen the technologies to make development smooth and enjoyable. Here's what you can expect from this template:

Frontend: Our frontend is powered by React NextJS, a popular and versatile framework for building web applications.

Backend: For the backend, we use Python along with the FastAPI framework. To ensure seamless communication between the frontend and backend, we generate an openapi.json file from the Python code, which defines the REST API. This file is then used with Orval to generate TypeScript bindings for the REST API. We're committed to code correctness, so we use mypy to ensure that our Python code is statically typed correctly. For backend testing, we rely on pytest.

Continuous Integration (CI): We've set up a CI bot that rigorously checks your code using the quality assurance (QA) tools mentioned above. If any errors are detected, it will block pull requests until they're resolved.

Dependency Management: We use the Nix package manager to manage dependencies and ensure reproducibility, making your development process more robust.

Supported Operating Systems

Linux
macOS

Getting Started with the Development Environment

Let's get your development environment up and running:

Install Nix Package Manager:
- You can install the Nix package manager by either downloading the Nix installer or running this command:
```
curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install
```
Install direnv:
- Download the direnv package from here or run the following command:
```
curl -sfL https://direnv.net/install.sh | bash
```

Add direnv to your shell:

Direnv needs to hook into your shell to work. You can do this by executing following command:

echo 'eval "$(direnv hook zsh)"' >> ~/.zshrc && echo 'eval "$(direnv hook bash)"' >> ~/.bashrc && eval "$SHELL"

Clone the Repository and Navigate:
- Clone this repository and navigate to it.
Allow .envrc:
- When you enter the directory, you'll receive an error message like this:
```
direnv: error .envrc is blocked. Run `direnv allow` to approve its content
```
- Execute direnv allow to automatically execute the shell script .envrc when entering the directory.
Build the Backend:
- Go to the pkgs/clan-cli directory and execute:
```
direnv allow
```
- Wait for the backend to build.
Start the Backend Server:
- To start the backend server, execute:
```
clan webui --reload --no-open --log-level debug
```
- The server will automatically restart if any Python files change.
Build the Frontend:
- In a different shell, navigate to the pkgs/ui directory and execute:
```
direnv allow
```
- Wait for the frontend to build.
NOTE: If you have the error "@clan/colors.json" you executed npm install, please do not do that. direnv reload will handle dependency management. Please delete node_modules with rm -rf node_modules.
Start the Frontend:
- To start the frontend, execute:
```
npm run dev
```
- Access the website by going to http://localhost:3000.

Setting Up Your Git Workflow

Let's set up your Git workflow to collaborate effectively:

Register Your Gitea Account Locally:
- Execute the following command to add your Gitea account locally:
```
tea login add
```
- Fill out the prompt as follows:
  - URL of Gitea instance: https://gitea.gchq.icu
  - Name of new Login [gitea.gchq.icu]: gitea.gchq.icu:7171
  - Do you have an access token? No
  - Username: YourUsername
  - Password: YourPassword
  - Set Optional settings: No
Git Workflow:
1. Add your changes to Git using git add <file1> <file2>.
2. Run nix fmt to lint your files.
3. Commit your changes with a descriptive message: git commit -a -m "My descriptive commit message".
4. Make sure your branch has the latest changes from upstream by executing:
```
git fetch && git rebase origin/main --autostash
```
5. Use git status to check for merge conflicts.
6. If conflicts exist, resolve them. Here's a tutorial for resolving conflicts in VSCode.
7. After resolving conflicts, execute git merge --continue and repeat step 5 until there are no conflicts.
Create a Pull Request:
- To automatically open a pull request that gets merged if all tests pass, execute:
```
merge-after-ci
```
Review Your Pull Request:
- Visit https://gitea.gchq.icu and go to the project page. Check under "Pull Requests" for any issues with your pull request.
Push Your Changes:
- If there are issues, fix them and redo step 2. Afterward, execute:
```
git push origin HEAD:YourUsername-main
```
- This will directly push to your open pull request.

Debugging

When working on the backend of your project, debugging is an essential part of the development process. Here are some methods for debugging and testing the backend of your application:

Test Backend Locally in Devshell with Breakpoints

To test the backend locally in a development environment and set breakpoints for debugging, follow these steps:

Run the following command to execute your tests and allow for debugging with breakpoints:
```
pytest -n0 -s --maxfail=1
```
You can place breakpoint() in your Python code where you want to trigger a breakpoint for debugging.

Test Backend Locally in a Nix Sandbox

To run your backend tests in a Nix sandbox, you have two options depending on whether your test functions have been marked as impure or not:

Running Tests Marked as Impure

If your test functions need to execute nix build and have been marked as impure because you can't execute nix build inside a Nix sandbox, use the following command:

nix run .#impure-checks

This command will run the impure test functions.

Running Pure Tests

For test functions that have not been marked as impure and don't require executing nix build, you can use the following command:

nix build .#checks.x86_64-linux.clan-pytest --rebuild

This command will run all pure test functions.

Running schemathesis fuzzer on GET requests

nix run .#runSchemaTests

If you want to test more request types edit the file checks/impure/flake-module.nix

Inspecting the Nix Sandbox

If you need to inspect the Nix sandbox while running tests, follow these steps:

Insert an endless sleep into your test code where you want to pause the execution. For example:
```
import time
time.sleep(3600)  # Sleep for one hour
```
Use cntr and psgrep to attach to the Nix sandbox. This allows you to interactively debug your code while it's paused. For example:
```
cntr exec -w your_sandbox_name
psgrep -a -x your_python_process_name
```

These debugging and testing methods will help you identify and fix issues in your backend code efficiently, ensuring the reliability and robustness of your application.

For more information on testing read property and contract based testing

Using this Template

To make the most of this template:

Set up a new Gitea account named ui-asset-bot. Generate an access token with all access permissions and set it under settings/actions/secrets as a secret called BOT_ACCESS_TOKEN.
- Also, edit the file .gitea/workflows/ui_assets.yaml and change the BOT_EMAIL variable to match the email you set for that account. Gitea matches commits to accounts by their email address, so this step is essential.
Create a second Gitea account named merge-bot. Edit the file pkgs/merge-after-ci/default.nix if the name should be different. Under "Branches," set the main branch to be protected and add merge-bot to the whitelisted users for pushing. Set the unprotected file pattern to **/ui-assets.nix.
- Enable the status check for "build / test (pull_request)."
Add both merge-bot and ui-asset-bot as collaborators.
- Set the option to "Delete pull request branch after merge by default."
- Also, set the default merge style to "Rebase then create merge commit."

With this template, you're well-equipped to build and collaborate on high-quality websites efficiently. Happy coding!.

API guidelines

see ./api-guidelines

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