Developing a gRPC server

In this section, we are going to create a gRPC server based on the api.proto file presented in the previous section. As gRPC needs external packages, we are going to need a GitHub repository to host the files, which is going to be https://github.com/mactsouk/grpc.

The code of gServer.go (located in the server directory) that is related to gRPC (some functions were omitted for brevity) is the following:

package main
import (
    "context"
    "fmt"
    "math/rand"
    "net"
    "os"
    "time"

This program uses math/rand instead of the more secure crypto/rand for generating random numbers because we need a seed value to be able to reproduce random number sequences.

    "github.com/mactsouk/protoapi"
    "google.golang.org/grpc"
    "google.golang.org/grpc/reflection"
)

The import block includes external Google packages as well as github.com/mactsouk...