guid
guid: based on snowflake, guid is written in golang. Call local function guid.NewIdWorker, will get an id worker. In addition, making generate id as a network service, a client can connect with grpc. Servers information are stored in etcd
Usage of guid:
- Run as network service
-datacenter-id uint
data center id
-etcd string
etcd endpoints (default "http://127.0.0.1:2379")
-host string
server host (default "localhost")
-path string
worker id path (default "/snowflake-servers")
-port int
server port (default 7609)
-seq uint
sequence
-skip-check
skip sanity checks
-worker-id uint
worker id- Connect to remote service
//connect to grpc server
conn, err := grpc.Dial(fmt.Sprintf("%s:%d", "localhost", 7609), grpc.WithInsecure())
if err != nil {
log.Printf("Did not connect: %v", err)
return
}
defer conn.Close()
c := guid.NewWorkerClient(conn)
//how many ids you want
number := uint32(10)
reply, err := c.GetId(context.Background(), &guid.Request{number})
if err != nil {
log.Fatalf("Could not get worker: %v", err)
return
}
log.Printf("Fetch Ids %v\n", reply.Id)- Local call
var workerId, datacenterId, sequence uint64 = 0, 1, 2
idWorker, err := guid.NewIdWorker(workerId, datacenterId, sequence)
if err != nil {
log.Println("Failed to make id worker:", err)
return
}
id, err := idWorker.NextId()
if err != nil {
log.Println("Failed to get next id:", err)
return
}
fmt.Printf("Fetch Id %d\n", id)