I'm having a little trouble understanding RPC, especially compared to say Rest API's or using protobufs to send and receive data, so please explain RPC like I'm Five?
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Top comments (4)
RPC == Remote Procedure Call
Procedure:
A function or method that does something meaningful and worth the efforts. Has knowledge about your business logic.
Procedure Call:
The action of invoking a function/method to execute the logic contained within
Remote:
Not in close proximity.
Remote Procedure Call:
Invoking a function/method that is not in proximity to the caller.
Proximity in Context of code:
--------------ENV 1----------------
Method A
Method B
--------------ENV 1----------------
--------------ENV 2----------------
Method C
Method D
--------------ENV 2----------------
Between ENV 1 and ENV 2,
The execution environments are capable of communication among themselves via a given medium, which can be
Any invocation methods A & B within ENV 2, and any invocation methods C & D within ENV 1, is to be referred to as RPC.
Thanks Deepak for this explanation, this was what I needed! :)
By this, can you say, if you have implemented a REST service and calling this over HTTP, you are implicit doing RPC?
yes, that would be correct.
Your application environment is remote to your server environment. HTTP is your medium of communication, logic contained within your REST APIs are remote procedures.
Another similar example would be web-sockets, where both your client and server can invoke remote calls on each other by the exchange of events.