Keynote:

Flask framework for Python
Templates: for writing html code separately from Python code
Function url_for: which is used to built the URL to navigate to Flask application.
forms: capture data from users.
message flashing: notify the user each time they successfully change information in the database.

Using Flask

from flask import Flask app = Flask(__name__) @app.route('/') @app.route('/hello') def HelloWorld(): return "Hello World" if __name__ == '__main__': app.debug = True app.run(host = '0.0.0.0', port = 5000)

Running this version on localhost:5000

Routing

The route decorator is used to bind the function to a URL. - URLs with Variables: "path//path"

You can now visit localhost:5000/restaurants/1

Templates

Template is used to store HTML code separately from Python code. Using render_template()
You have to make a directory templates in the same directory of your code, and store your html file there.

mkdir templates

URL Building

Using url_for() function in Flask

http://flask.pocoo.org/docs/0.10/quickstart/#url-building

https://github.com/lobrown/Full-Stack-Foundations/blob/master/Lesson-3/10_url_for-Solution/menu.html

You can access the page: http://localhost:5000/restaurants/1/

Responding With JSON

API: Application Programming Interface, which allow external applications to use public information our apps want to share.
When an API is communicated over the Internet, following the rules of HTTP, it is called the resful API.
RESTful: Representational State Transfer.
JSON: Javascript Object Notation.



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