--- a/cmd/gondole-cli/main.go	Wed Apr 12 17:33:17 2017 +0200
+++ b/cmd/gondole-cli/main.go	Wed Apr 12 17:36:27 2017 +0200
@@ -1,17 +1,20 @@
 package main
 
 import (
-	"github.com/keltia/gondole"
-	"github.com/urfave/cli"
 	"log"
 	"os"
 	"strings"
+
+	"github.com/urfave/cli"
+
+	"github.com/keltia/gondole"
 )
 
 var (
-	fVerbose  bool
-	fInstance string
-	fScopes   string
+	fVerbose             bool
+	fInstance            string
+	fUsername, fPassword string
+	fScopes              string
 
 	instance *gondole.Client
 	cnf      *Server
@@ -135,6 +138,16 @@
 			Usage:       "use these scopes",
 			Destination: &fScopes,
 		},
+		cli.StringFlag{
+			Name:        "username,login",
+			Usage:       "user name",
+			Destination: &fUsername,
+		},
+		cli.StringFlag{
+			Name:        "password",
+			Usage:       "user password",
+			Destination: &fPassword,
+		},
 	}
 	app.Run(os.Args)
 }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/login.go	Wed Apr 12 17:36:27 2017 +0200
@@ -0,0 +1,59 @@
+package gondole
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/sendgrid/rest"
+)
+
+type UserToken struct {
+	Access_token string `json:"access_token"`
+	CreatedAt    int    `json:"created_at"`
+	Scope        string `json:"scope"`
+	TokenType    string `json:"token_type"`
+}
+
+func (g *Client) Login(username, password string) error {
+	if username == "" {
+		return fmt.Errorf("missing username")
+	}
+	if password == "" {
+		return fmt.Errorf("missing password")
+	}
+
+	hdrs := make(map[string]string)
+	opts := make(map[string]string)
+
+	hdrs["User-Agent"] = "Gondole/" + GondoleVersion
+	hdrs["Authorization"] = "Bearer %s" + g.Secret
+
+	opts["grant_type"] = "password"
+	opts["client_id"] = g.ID
+	opts["client_secret"] = g.Secret
+	opts["username"] = username
+	opts["password"] = password
+
+	req := rest.Request{
+		BaseURL:     g.InstanceURL + "/oauth/token",
+		Headers:     hdrs,
+		QueryParams: opts,
+		Method:      rest.Post,
+	}
+
+	r, err := rest.API(req)
+	if err != nil {
+		return err
+	}
+
+	var resp UserToken
+
+	println(r.Body)
+	err = json.Unmarshal([]byte(r.Body), &resp)
+	if err != nil {
+		return err
+	}
+
+	g.userToken = &resp
+	return nil
+}

--- a/types.go	Wed Apr 12 17:33:17 2017 +0200
+++ b/types.go	Wed Apr 12 17:36:27 2017 +0200
@@ -11,6 +11,8 @@
 	Secret      string
 	APIBase     string
 	InstanceURL string
+
+	userToken *UserToken
 }
 
 /*