Minify HTML output from Flask application with Jinja2 templates

Question

Is there a Flask or Jinja2 configuration flag / extension to automatically minify the HTML output after rendering the template?

Answer 1

Modifying @Bletch answer for the latest version of htmlmin.

from flask import Flask
import htmlmin

app = Flask(__name__)

@app.route('/')
def home():
    rendered_html = render_template('home.html')
    return htmlmin.minify(rendered_html)

https://htmlmin.readthedocs.io/en/latest/quickstart.html

The minified html will still have some spaces between the tags. If we want to remove that, then remove_empty_space =True attribute needs to be added while the template is rendered.

return htmlmin.minify(rendered_html, remove_empty_space =True)

https://htmlmin.readthedocs.io/en/latest/reference.html