API

This app uses weatherapi.com to fetch the weather data. There is a free tier with 1 Million Calls/month.

Configuration

Before running the application, you need to set your API key as an environment variable. Here's how you can do it:

1. Open your .bashrc or .bash_profile file:

   nano ~/.bashrc  # or `nano ~/.bash_profile` if you're on macOS

2. Add the following line to the file:

   export API_KEY=your_api_key

   Replace your_api_key with your actual API key.

3. Save and close the file.

4. Apply the changes:

   source ~/.bashrc  # or `source ~/.bash_profile` if you're on macOS

Now, every time you open a new terminal session, the API_KEY environment variable will be set automatically.

Deployment

To deploy the application on a Linux server with systemd, follow these steps:

1. Create a new service file in /etc/systemd/system/ with a .service extension, for example, myapp.service:

   sudo nano /etc/systemd/system/myapp.service

2. Add the following content to the service file:

   [Unit]
   Description=Gunicorn instance to serve myapp
   After=network.target
   
   [Service]
   User=yourusername
   Group=www-data
   WorkingDirectory=/path/to/your/app
   Environment="PATH=/path/to/your/app/env/bin"
   ExecStart=/path/to/your/app/env/bin/gunicorn -w 4 server:app
   
   [Install]
   WantedBy=multi-user.target

   Replace yourusername with your actual username, and /path/to/your/app with the actual path to your Flask application.

3. Save and close the file.

4. Start the Gunicorn service you just created:

   sudo systemctl start myapp

5. Enable the service to start on boot:

   sudo systemctl enable myapp

6. Check the status of the service:

   sudo systemctl status myapp

This will ensure that your Flask application starts on boot and restarts if it crashes.