What is RPC?

Remote Procedure Call (RPC) is an interprocess communication that exchanges information between various distributed systems. A computer called Alice can call functions (procedures) in another computer called Bob in protocol format and can get the computed result back. Without implementing the functionality locally, we can request things from a network that lies in another place or geographical region.

The entire process can be broken down into the following steps:

• Clients prepare function name and arguments to send
• Clients send them to an RPC server by dialing the connection
• The server receives the function name and arguments
• The server executes the remote process
• The message will be sent back to the client
• The client collects the data from the request and uses it appropriately

The server needs to expose its service for the client to connect and request a remote procedure. Take a look at the following diagram:

Go provides a library to implement both the RPC server and RPC client. In...