diff --git a/opengemini/client.go b/opengemini/client.go
index e6fe79d..1bcab42 100644
--- a/opengemini/client.go
+++ b/opengemini/client.go
@@ -1 +1,47 @@
 package opengemini
+
+import (
+	"crypto/tls"
+)
+
+var _, _ = NewClient(&Config{})
+
+type Client interface {
+}
+
+type Config struct {
+	AddressList []*Address
+	AuthConfig  *AuthConfig
+	BatchConfig *BatchConfig
+	GzipEnabled bool
+	TlsConfig   *tls.Config
+}
+
+type Address struct {
+	Host string
+	Port int
+}
+
+type AuthType int
+
+const (
+	Password AuthType = iota
+	Token
+)
+
+type AuthConfig struct {
+	AuthType AuthType
+	Username string
+	Password string
+	Token    string
+}
+
+type BatchConfig struct {
+	BatchEnabled  bool
+	BatchInterval int
+	BatchSize     int
+}
+
+func NewClient(config *Config) (Client, error) {
+	return newClient(config)
+}
diff --git a/opengemini/client_impl.go b/opengemini/client_impl.go
new file mode 100644
index 0000000..f8f8b9f
--- /dev/null
+++ b/opengemini/client_impl.go
@@ -0,0 +1,36 @@
+package opengemini
+
+import "errors"
+
+type client struct {
+	config *Config
+}
+
+func newClient(c *Config) (Client, error) {
+	if len(c.AddressList) == 0 {
+		return nil, errors.New("must have at least one address")
+	}
+	if c.AuthConfig.AuthType == Token && len(c.AuthConfig.Token) == 0 {
+		return nil, errors.New("invalid auth config due to empty token")
+	}
+	if c.AuthConfig.AuthType == Password {
+		if len(c.AuthConfig.Username) == 0 {
+			return nil, errors.New("invalid auth config due to empty username")
+		}
+		if len(c.AuthConfig.Password) == 0 {
+			return nil, errors.New("invalid auth config due to empty password")
+		}
+	}
+	if c.BatchConfig.BatchEnabled {
+		if c.BatchConfig.BatchInterval <= 0 {
+			return nil, errors.New("batch enabled, batch interval must be great than 0")
+		}
+		if c.BatchConfig.BatchSize <= 0 {
+			return nil, errors.New("batch enabled, batch size must be great than 0")
+		}
+	}
+	client := &client{
+		config: c,
+	}
+	return client, nil
+}