What is REST API?

REST is a guideline & set of rules of how to deal with API.

<aside> <img src="/icons/fabric-swatch_purple.svg" alt="/icons/fabric-swatch_purple.svg" width="40px" /> It's similar to DFAs in the part where it is stateless

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• it doesn't remember the user's last input or keeps it in memory
• You send a command to a REST API, the API processes it, sends it back and then immediately forgets all about you!
• Running one command should not affect the behavior of running another command afterwards.

REST VS RPC EXAMPLE

RPC

<aside> 🚨 RPC (remote procedure call) Basically a list of action commands you can call on.

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Opposite of REST could be considered to be RPC

Say you have a command that's is like "Paint this thing"

RPC does it like:

1. You first have a generic paint action

2. You have an input parameter for what "thing" you want painted

REST