feat(auth): Adding token auth (#39)

Adding token auth

client.go

@@ -89,8 +89,6 @@ func NewClient(opts ...ClientOption) (Client, error) {
 
 	c.authCreds = authCreds
 
-	go c.renewAuthInfo()
-
 	return c, nil
 }
 

client_opts.go

@@ -36,18 +36,36 @@ func WithConfig(config *hashiVault.Config) ClientOption {
 	}
 }
 
+func WithTokenAuth(token string) ClientOption {
+	return func(c *client) {
+		c.auth = func(v *hashiVault.Client) (*hashiVault.Secret, error) {
+			return tokenLogin(v, token)
+		}
+	}
+}
+
 func WithAppRoleAuth(roleID, secretID string) ClientOption {
 	return func(c *client) {
 		c.auth = func(v *hashiVault.Client) (*hashiVault.Secret, error) {
-			return appRoleLogin(v, roleID, secretID)
+			sec, err := appRoleLogin(v, roleID, secretID)
+			if err != nil {
+				return nil, err
+			}
+			go c.renewAuthInfo()
+			return sec, nil
 		}
 	}
 }
 
 func WithUserPassAuth(username, password string) ClientOption {
 	return func(c *client) {
 		c.auth = func(v *hashiVault.Client) (*hashiVault.Secret, error) {
-			return userPassLogin(v, username, password)
+			sec, err := userPassLogin(v, username, password)
+			if err != nil {
+				return nil, err
+			}
+			go c.renewAuthInfo()
+			return sec, nil
 		}
 	}
 }

token.go

@@ -0,0 +1,8 @@
+package vaulty
+
+import hashiVault "github.com/hashicorp/vault/api"
+
+func tokenLogin(v *hashiVault.Client, token string) (*hashiVault.Secret, error) {
+	v.SetToken(token)
+	return v.Auth().Token().LookupSelf()
+}