How to Install Flask in Visual Studio Code with Sample API Example (2024)

How to Install Flask in Visual Studio Code with Sample API Example

Flask is a lightweight and powerful web framework for Python, perfect for building web applications and APIs with ease. Integrating Flask into Visual Studio Code (VS Code) provides a seamless development experience for creating Python-based web projects. In this tutorial, we'll walk you through the step-by-step process of installing Flask in Visual Studio Code and demonstrate how to create a sample API using Flask, enabling you to kickstart your web development journey with confidence.

**Step 1: Install Python and Visual Studio Code:**

**Step 2: Create a New Folder for Your Flask Project:**

1. Open Visual Studio Code.
2. Create a new folder for your Flask project using the File Explorer sidebar in VS Code.

**Step 3: Open a New Terminal in Visual Studio Code:**

1. Open a new terminal in Visual Studio Code by selecting Terminal - New Terminal from the menu.

**Step 4: Create a Virtual Environment (Optional but Recommended):**

1. In the terminal, navigate to your project folder.
2. Create a virtual environment by running:
```
python -m venv venv
```
3. Activate the virtual environment:
- On Windows:
```
.\venv\Scripts\activate
```
- On macOS/Linux:
```
source venv/bin/activate
```

**Step 5: Install Flask:**

1. With the virtual environment activated, install Flask using pip:
```
pip install Flask
```

**Step 6: Create a Sample Flask App:**

3. Write a simple Flask application, such as:
```python
from flask import Flask

app = Flask(__name__)

def hello_world():
return 'Hello, World!'

if __name__ == '__main__':
```

**Step 7: Run the Flask App:**

1. In the terminal, navigate to your project folder.
2. Run the Flask application by executing:
```
```

**Step 8: Test the API:**

2. You should see the message "Hello, World!" displayed in the browser.

Congratulations! You have successfully installed Flask in Visual Studio Code and created a sample API using Flask. You can now explore further and develop more complex web applications and APIs using Flask within the VS Code environment.

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I'm not exactly sure if this worked but I looked up on Google pip install flask download for windows or Linux then I just dragged it to the cmd and clicked enter and it downloaded does that mean i installed it?