CRUD

Reading

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

• 100’s: Informational status codes. They let the client know that the request has been recieved and the server will try to make the request happen.

• 200’s: Success codes. This request was returned sucessfully.

• 300’s: Redirect codes. The information being requested has been moved, and the request has been redirected to another location where hopefully the information now resides.

• 400’s: Client error codes. The request sent to the server from the client is invalid for whatever reason.

• 500’s: Server error codes. The server is either overwhelmed or unreachable for some reason. The client should retry the request.

1. What is a status code 202? The request is valid, but because it is asynchronous, it will finish processing sometime in the future.

2. What is a status code 308? The request has been redirected permanently to a different URL.

3. What code would you use if an update didn’t return data to a client? 204

4. What code would you use if a resource used to exist but no longer does? 410

5. What is the ‘Forbidden’ status code? 403

Video

1. Why do we need to pull our MongoDB database string out of our server and put it into our .env? Because when it is deployed you will want to be using a path that isn’t your local host to access it.

2. What is middleware? Code that gets run after you get a request, but after it is passed to the routes.

3. What does app.use(express.json()) do? It allows the server to read JSON files as a body, rather than a GET or a POST element.

4. What does the /:id mean in a route? It would mean that id is being passed in as a parameter of the request, allowing you to access anything that is passed in after that backslash in the request.

5. What is the difference between PUT and PATCH? Put updates the entire object associated with that JSON file, rather than just the key value pair that exists in the JSON file that the request is manipulating.

6. How do you make a default value in a schema? You add a key value pair of default and set it to whatever you want the default value to be within that object.

7. What does a 500 error status code mean? Something has gone wrong onthe website’s server but the server could not be more specific as to what actually went wrong.

8. What is the difference between a status 200 and a status 201? 200 means that the request was a success, and 201 means that it is being processed.