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Jinja Templating in Flask - Python
19 December, 2022
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1. What is Flask
Flask is a lightweight Python web framework that provides useful tools and features for creating web applications.
It is classified as a microframework because it does not require particular tools or libraries. It has a small and easy-to-extend core. Flask is a WSGI web app framework.
Flask - Python
2. What is Jinja Template?
Jinja is a template engine for Python. It is fast and widely used. Jinja is similar to the Django template engine but provides Python-like expressions while ensuring that the templates are evaluated in a sandbox.
Flask uses Jinja templates to render the final HTML or other formats. Jinja templates are used to separate the business logic of the application from the presentation logic.
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How Jinja template works?
This separation of concerns allows developers to focus on writing the business logic while designers can focus on the presentation of the application.
3. How to install Jinja Template Engine?
To use Jinja templates in a Flask application, you will need to install the Jinja package using pip:
Once Jinja is installed, you can use it in your Flask application by creating a templates folder in your project and saving your Jinja templates in this folder.
4. How to Use Jinja Templating?
To use a Jinja template in your Flask application, you will need to import the render_template function from the Flask package and use it to render the template:
In the given example above, the index function is using the render_template function to render the index.html template located in the templates folder.
Jinja templates use a combination of HTML and special Jinja syntax to define the structure and content of the rendered page. For example, you can use Jinja variables to insert dynamic content into the template:
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