Why this matters: This information matters because it details various status codes and when to use them, along with demonstrating a fast but efficient run through of creating a REST API.
Source: https://www.moesif.com/blog/technical/api-design/Which-HTTP-Status-Code-To-Use-For-Every-CRUD-App/
1. In your own words, describe what each group of status code represents:
100’s = informational codes; typically they tell the client that the header of the request has been received and that the server will try to comply with a transmission demand of the client.
200’s = success codes; they tell the client that the request was accepted.
300’s = redirection codes; they tell the client that the resource being requested isn’t available at the expected location.
400’s = client error codes; they alert the client to invalid requests to a server.
500’s = server error codes; typically they mean there’s problems with overwhelmed servers or unreachable servers behind proxies. Sometimes they can be directly related to client requests that trigger error exceptions on the server.
2. What is a status code 202?
Accepted. Tells the client that the request was valid, but processing will finish sometime in the future.
3. What is a status code 308?
Permanent redirect. Resource will now be available at a new URL and client should directly access it via the new URL in the future.
4. What code would you use if an update didn’t return data to a client?
204 No content.
5. What code would you use if a resource used to exist but no longer does?
204 No content.
6. What is the ‘Forbidden’ status code?
403, client has authorized or doesn’t need to authorize itself, but still has no permissions to access the resource.
Source: https://www.youtube.com/channel/UCFbNIlppjAuEX4znoulh0Cw
1. Why do we need to pull our MongoDB database string out of our server and put it into our .env?
Because we will want to use something that isn’t the local host, so we add it to the .env.
2. What is middleware?
Code that runs when the server gets a request, but before it gets passed to your routes.
3. What does app.use(express.json()) do?
app.use allows us to use whatever middleware we want. express.json allows the server to accept JSON as a body instead of a post element or get element, etc.
4. What does the /:id mean in a route?
the : means it’s a parameter that can be
accessed with req.params.id to give access to whatever they pass in after the first slash.
5. What is the difference between PUT and PATCH?
Patch updates based only on what the user passes you. Put updates all information at once instead of just the information that gets passed.
6. How do you make a default value in a schema?
default: Date.now so that in the example, if we don’t pass our subscribed date it will default to the current date.
7. What does a 500 error status code mean?
It means that there’s an error on your server. the server (db) had an error that caused the transaction not to work and doesn’t have to do with the user - it’s entirely the dev’s fault.
8. What is the difference between a status 200 and a status 201?
201 means successfully created an object; 200 means everything was successful. 201 is more specific.
Nothing at the moment!