Difference between PUT vs POST from a system administrator POV?

Backend Development
1

I believe it’s important to learn concepts from a POV of X, when trying to learn something very confusing that could mean multiple meanings.

These are what I wrote in my college notes of TCP IP that I did 6 years ago.

Much of it is confusing as both seem to be doing the same thing.

Can you tell me what’s the benefit of being idempotent? As far as I know idempotent means no matter how many times you repeat a input, you get same output.

2

Here is how I understand these two:

  1. POST:
  • You send a piece of information => you get a response
  • Ex: You search for pizza in a dinner => you send the “pizza” information to the server => it responds all the pizzas.
  1. PUT:
  • Basically means UPDATE.
  • You send the information => the server responds by replacing that information to the existing data.
  • Ex: You want to change your account information => you input all the changes that are
    compulsory => the server replaces and sends back the new information you put in.