Creating a server side web app

Creating a server side web app

• 1.
  UO WEB DEV
• 2.
  Big Kids Development Creatinga Robust Server Side Web App
• 3.
  Celebrememe Looked LikeThis: Flask Server Twitter API What did Kanye Say? Here are Kanye’s last 20 tweets #yeezyboost. Client
• 4.
  Flask Server Twitter API What did Kanye Say? Hereare Kanye’s last 20 tweets #yeezyboost. Client We spent our whole time talking about this interaction.
• 5.
  Flask Server #yeezyboost. Client But what aboutthis whole thing?
• 6.
  ● Flask isa web framework. It provides you with the tools, libraries and technologies that allow you to build a web application. ● Flask is a micro-framework. We want to build a dynamic site.
• 7.
  Django Flask
• 8.
  How Do TheseThings Work? 1. User lands on a URL. Server, (Flask), finds which function is associated with that URL 2. Function is run 3. Function passes info to template HTML file 4. Template HTML file renders data and displays the page
• 9.
  1) Flask findsURL associated with function 2)Function is run 3) Function passes variables to HTML file www.placeful.com/messages/73.1/75.1
• 10.
  4) Template HTMLFile Renders Data and displays page
• 12.
  Real nice. Justa little .db file that lives on your server/local machine.
• 13.
  We are millennials.We shouldn’t have to write SQL.
• 14.
  Turns RAW SQLstatements into classes in your language of choice. Object Relational Mapping (ORM)
• 15.
  But how doesthe code from our server get put into our HTML?
• 16.
  It scans ourHTML file, finds the template tags, for example {{ message.text }}, and inserts the variables from our server side web app.
• 17.
  <p>{{messages.text}}</p> becomes <p>What’s happening?</p>