PG Exit Ticket

day8ET.md

Day 08: pg, Express Routing, REST

You should be able to:

• Describe the role of pg in our stack
• Define REST and its advantages
• Create and mount Express Routers
• Explain the role of body parsing middleware

What role does node-postgres assume when communicating with postgres?

• Client: It is requesting something from the PostgreSQL server ☑️
• Server
• Neither

What is REST?

• A node module for handling routes
  • Express
• A type of built-in express middleware for designing routers
  • Express Router
• An architectural style for designing web services ☑️
  • Helps answer the question on how to organize routes and how to map functionality to URIs and Methods:
    • Paths represent "nouns" or resources
    • HTTP “verbs” map to data operations
• A algorithm for parsing the text of an HTTP request
  • Body Parser

Select all HTTP verbs

• GET
• POST
• PUT
• DELETE

What is the express body parser and why do we use it?

It's a piece of middleware in which it extracts data from a form and makes it available to req.body. This is needed because data on the internet is not necessarily sent in wholesale but in packets.