Reading-Notes

Class 12: Understanding the JavaScript Call Stack

• Status Codes Based On REST Methods

• Build A REST API With Node.js, Express, & MongoDB - Quick

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Status Codes Based On REST Methods

• In your own words, describe what each group of status code represents:

  - 100’s = informationl status codes
  - 200’s = success status codes
  - 300’s = redirection status codes
  - 400’s = client error status codes
  - 500’s = server error status codes
  

• What is a status code 202?

  • indicates the request has been accepted for processing but the processing has not been completed.

• What is a status code 308?

  • indicates the requested resources has been permanently moved to another URL

• What code would you use if an update didn’t return data to a client?

  • status code 204

• What code would you use if a resource used to exist but no longer does?

  • error code 410

  • 403 status code

• What is the ‘Forbidden’ status code?

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Build A REST API With Node.js, Express, & MongoDB - Quick

• Why do we need to pull our MongoDB database string out of our server and put it into our .env?

  - Because it has sensitive information.
  

• What is middleware?

  - code that runs when server gets request but before it gets passed to routes 
  

• What does app.use(express.json()) do?

  - lets our server accept json as a body
  

• What does the /:id mean in a route?

  - gets a single route used with params
  

• What is the difference between PUT and PATCH?

  - put updates all the information of the route all at once instead of just the information that gets passed
  

• How do you make a default value in a schema?

  - by passing default as one of the keys 
  

• What does a 500 error status code mean?

  - something is wrong on the server-side
  

• What is the difference between a status 200 and a status 201?

  - 200: generic success message
  - 201: something was created successfully