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go-zero/rpcx/client.go

80 lines
1.5 KiB
Go

package rpcx
import (
"log"
"time"
"github.com/tal-tech/go-zero/core/discov"
"github.com/tal-tech/go-zero/rpcx/internal"
"github.com/tal-tech/go-zero/rpcx/internal/auth"
"google.golang.org/grpc"
)
var (
WithDialOption = internal.WithDialOption
WithTimeout = internal.WithTimeout
)
type (
Client interface {
Conn() *grpc.ClientConn
}
RpcClient struct {
client Client
}
)
func MustNewClient(c RpcClientConf, options ...internal.ClientOption) Client {
cli, err := NewClient(c, options...)
if err != nil {
log.Fatal(err)
}
return cli
}
func NewClient(c RpcClientConf, options ...internal.ClientOption) (Client, error) {
var opts []internal.ClientOption
if c.HasCredential() {
opts = append(opts, WithDialOption(grpc.WithPerRPCCredentials(&auth.Credential{
App: c.App,
Token: c.Token,
})))
}
if c.Timeout > 0 {
opts = append(opts, WithTimeout(time.Duration(c.Timeout)*time.Millisecond))
}
opts = append(opts, options...)
var client Client
var err error
if len(c.Server) > 0 {
client, err = internal.NewDirectClient(c.Server, opts...)
} else if err = c.Etcd.Validate(); err == nil {
client, err = internal.NewDiscovClient(c.Etcd.Hosts, c.Etcd.Key, opts...)
}
if err != nil {
return nil, err
}
return &RpcClient{
client: client,
}, nil
}
func NewClientNoAuth(c discov.EtcdConf) (Client, error) {
client, err := internal.NewDiscovClient(c.Hosts, c.Key)
if err != nil {
return nil, err
}
return &RpcClient{
client: client,
}, nil
}
func (rc *RpcClient) Conn() *grpc.ClientConn {
return rc.client.Conn()
}