Developing with Bottle Framework- Part 1

Building Your App 

The writing of our Bottle Framework app is complete. Start Sublime Text 3 or your preferred text editor. To hold the contents of our first program, create the application file app.py as follows:

import os
from bottle import route, run, template

index_html = '''Hello, this is my web app By <strong>{{ author }}</strong>.'''

@route('/')
def index():
    return template(index_html, author='Coding Ninjas')

@route('/name/<name>')
def name(name):
    return template(index_html, author=name)

if __name__ == '__main__':
    port = int(os.environ.get('PORT', 8080))
    run(host='0.0.0.0', port=port, debug=True)

Your program can be used locally now:

$ python app.py

You can access http://localhost:8080/ and check out Bottle Framework to see how your software works!

Output

Hello, this is my web app! By Coding Ninjas

Therefore, a function is bound to the route using the @route decorator in Bottle Framework. The index() method is attached to the route in the first route, /, which renders the index_html template and accepts a variable named author as a keyword argument. The template can then access this variable.

Go to the following route by typing http://localhost:8080/name/Sam at the end of the address bar. You should observe something like

My web app! By Sam.

What is happening?💁

🔷A function is once more bound to the route by the @route decorator in Bottle Framework. In this instance, we're employing a dynamic route using the wildcard character name>.

🔷Then the view function receives this wildcard as an input, along with the def name

🔷Then, as a keyword argument, we sent this to the template as author=name.

🔷 The template then renders the author variable.

 Shell Scripting

Are you trying to get going quickly? Use this Shell script to generate the beginning application swiftly.

mkdir bottle
cd bottle
pip install virtualenv==12.0.7
virtualenv venv
source venv/bin/activate
pip install bottle==0.12.8
pip freeze > requirements.txt
git init
git add .
git commit -m "initial commit"

cat >app.py <<EOF
import os
from bottle import route, run, template

index_html = '''Hello, this is my web app By <strong>{{ author }}</strong>.'''

@route('/')
def index():
    return template(index_html, author='Coding Ninjas')
@route('/name/<name>')
def name(name):
    return template(index_html, author=name)
if __name__ == '__main__':
    port = int(os.environ.get('PORT', 8080))
    run(host='0.0.0.0', port=port, debug=True)
EOF

chmod a+x app.py

git init
git add .
git commit -m "Updated"

Use the following command to run this script after downloading it from this Gist:

$ bash bottle.sh

Following Steps

From this point, adding new @route-decorated methods to produce new pages is easy. It's easy to create HTML. The HTML was inserted directly into the file in the abovementioned app. This can be easily changed to load the template from a file. For instance:

@route(‘/main’)
def main(name):
return template(‘main_template’)

This will render the end user's view of the template file main_template.tpl, which must be located in a views folder within your project hierarchy.

Check out most important Git Interview Questions here.

Frequently Asked Questions

What is the Bottle Framework in Python?

The Bottle Framework is a Python WSGI micro web framework that is rapid, cheap, and lightweight. It is released as a single file module and depends only on the Python Standard Library.

Is Bottle an MVC framework?

Like most frameworks, Bottle Framework uses an MVC software pattern. Model, View, and Controller, or MVC, refers to the choice to split the various user interface functions.

Explain the Falcon Python.

Falcon is a dependable, high-performance Python web framework for creating microservices and backends for extensive applications.

In Python, what is WSGI?

The Web Server Gateway Interface is a primary calling convention used by web servers to route requests to web applications or frameworks created in Python.

Which is preferable, the Flask or the Bottle?

Flask is an excellent framework irrespective of the web application. However, if you need to finish a project quickly, Bottle Framework works best.

Conclusion

This blog has extensively covered all the fundamentals of Bottle Framework, including the steps involved in its installation, how to create an application, the use of shell script to generate the application, and how to utilize the framework to build web applications.

We hope you liked this blog. But wait! there is more to come. In the following article, we will learn to plot some excellent graphs showing different results. So, Stay tuned for Part 2 of Developing with Bottle Framework.   

Don’t stop here. Suppose you are planning to delve deeper into the various frameworks of Python; in that case, the 19 best Python frameworks, Bottle- full stack Python, Flask in Python, and Django in Python, are highly recommended blogs for you.

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Happy Coding, ninjas!!