When returning responses, it can make sense to also set an appropriate Http status code – this lets the browser know what went wrong
• You got success (2xx), redirect (3xx), client side errors (4xx) and server-side errors (5xx) codes to choose from
• Setting status codes does NOT mean that the response is incomplete or the app crashed
200 and 201 or 2xx status codes indicates Success: they indicate that the operation simply succeeded.
3xx status codes: Redirection Happens
4xx status codes: shows us that Client-Side error --- 400 status codes which show you that something happened because an error was done by the client,
for example incorrect data was entered into a form, well then we return this 422 error code
5xx (server side error)
Difference between 200 and 201 status codes?
200 and 201, the difference is that we use 201 typically when we created a resource on the server
301 show us that his resource moved permanently or just temporary thing.
401: for not Authenticated
403: Not authorized that means that you might be authenticated but you were still not allowed to do that specific operation
404: for page not found
422: Invalid Input
500: Server Side error
The Default Status Code is 200
1×× Informational
100 Continue
101 Switching Protocols
102 Processing
2×× Success
200 OK
201 Created
202 Accepted
203 Non-authoritative Information
204 No Content
205 Reset Content
206 Partial Content
207 Multi-Status
208 Already Reported
226 IM Used
3×× Redirection
300 Multiple Choices
301 Moved Permanently
302 Found
303 See Other
304 Not Modified
305 Use Proxy
307 Temporary Redirect
308 Permanent Redirect
4×× Client Error
400 Bad Request
401 Unauthorized
402 Payment Required
403 Forbidden
404 Not Found
405 Method Not Allowed
406 Not Acceptable
407 Proxy Authentication Required
408 Request Timeout
409 Conflict
410 Gone
411 Length Required
412 Precondition Failed
413 Payload Too Large
414 Request-URI Too Long
415 Unsupported Media Type
416 Requested Range Not Satisfiable
417 Expectation Failed
418 I'm a teapot
421 Misdirected Request
422 Unprocessable Entity
423 Locked
424 Failed Dependency
426 Upgrade Required
428 Precondition Required
429 Too Many Requests
431 Request Header Fields Too Large
444 Connection Closed Without Response
451 Unavailable For Legal Reasons
499 Client Closed Request
5×× Server Error
500 Internal Server Error
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Timeout
505 HTTP Version Not Supported
506 Variant Also Negotiates
507 Insufficient Storage
508 Loop Detected
510 Not Extended
511 Network Authentication Required
599 Network Connect Timeout Error
Source: https://httpstatuses.com/
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