Context processors in Flask is used to inject variables into the context of templates. Here are code snippets to help you:

Start by creating a utils.py module within your project to contain helper functions and context processors.

# utils.py

def custom_context_processor():
    # Your custom context variables here
    return {
        'custom_variable': 'Custom Value',
        # Add more variables as needed
    }

Modify your create_app function to include the context processor. You can import the custom_context_processor function from the utils.py module.

# app.py

from flask import Flask
from .utils import custom_context_processor

def create_app(config_name='development'):
    app = Flask(__name__)

    # Your other app configurations and blueprints here

    # Register the context processor
    app.context_processor(custom_context_processor)

    return app

Now, you can use the custom_variable in your templates.

{{ custom_variable }}