Introduction
Flask templates are a fundamental part of creating dynamic web pages. They allow you to render HTML pages with dynamic content, making your web applications more interactive and user-friendly. In this guide, we'll explore Flask templates and how to use them to create dynamic web pages.
Step 1: Setting Up Your Flask Application
Before working with templates, make sure you have a Flask application. If not, you can create a basic Flask app like this:
from flask import Flask, render_template
app = Flask(__name)
Step 2: Creating a Template
Flask uses the Jinja2 template engine, which allows you to create templates with dynamic placeholders. Create a "templates" folder in your project directory and save your template as an HTML file. Here's a sample template, "hello.html":
<!DOCTYPE html>
<html>
<head>
<title>Hello, Flask!</title>
</head>
<body>
<h1>Hello, {{ name }}!</h1>
</body>
</html>
The double curly braces {{ name }} indicate a dynamic placeholder that Flask will fill with data when rendering the template.
Step 3: Rendering a Template
In your Flask application, you can use the render_template function to render your HTML template. Pass data as keyword arguments to the function. Here's an example:
@app.route('/')
def hello():
user_name = "Flask"
return render_template('hello.html', name=user_name)
Here, we pass the "user_name" variable to the template as "name." When you visit the route, the template will display "Hello, Flask!" based on the data provided.
Conclusion
Flask templates are a powerful tool for creating dynamic web pages. You can build interactive and data-driven web applications by combining templates with Flask's routing and views. Continue to explore Flask's capabilities to take your web development to the next level.