Class 3 Learning Objectives

By the end of this class students will be able to:

How the Web Works

• Identify the main parts of a URL and describe the role of each: protocol, host, port, path, query parameter, fragment
• Name the default port(s) for HTTP requests
• Name the two most common HTTP request types and describe common use cases for each
• Describe usage of HTTP request headers
• Provide examples of common request header parameters
• Describe common HTTP response status codes: 200, 404, 500
• Describe meaning of HTTP response headers, along with common response headers
• Describe the role of web servers in providing web content
• Explain the difference between static and dynamic requests/content
• Explain what a web application does
• Identify and explain the basic role of the components of network communication: HTTP, TCP/IP, DNS
• Explain the flow of an HTTP request made from a web browser

Hello World Flask Application

• Create a virtual Python environment using conda
• Activate a virtual environment
• Install packages into a virtual environment
• Create and run a basic Flask application