Hands-On RESTful Web Services with Go - Second Edition

Creating an RPC client

A client also uses the same net/rpc package, but different methods to dial to the server and get the remote function executed. The only way to get data back is to pass the reply pointer object along with the request. Let's look at the steps for creating an RPC client, as follows:

1. Let's define that client program, like this:

touch -p $GOPATH/src/github.com/git-user/chapter3/rpcClient/main.go

2. A client dials to an RPC server, using the rpc.DialHTTP method. It returns a client object. Once dial-in is successful, it can then execute a remote function using the client.Call method, as shown in the following code block:

package mainimport (    "log"    "net/rpc")type Args struct {}func main() {    var reply int64 args := Args{} ...