add google login

- refactor resolvers
- fix signup method typos

Resolves #17

server/resolvers/logout.go

@@ -0,0 +1,35 @@
+package resolvers
+
+import (
+	"context"
+
+	"github.com/yauthdev/yauth/server/graph/model"
+	"github.com/yauthdev/yauth/server/session"
+	"github.com/yauthdev/yauth/server/utils"
+)
+
+func Logout(ctx context.Context) (*model.Response, error) {
+	gc, err := utils.GinContextFromContext(ctx)
+	var res *model.Response
+	if err != nil {
+		return res, err
+	}
+
+	token, err := utils.GetAuthToken(gc)
+	if err != nil {
+		return res, err
+	}
+
+	claim, err := utils.VerifyAuthToken(token)
+	if err != nil {
+		return res, err
+	}
+
+	session.DeleteToken(claim.ID)
+	res = &model.Response{
+		Message: "Logged out successfully",
+	}
+
+	utils.DeleteCookie(gc)
+	return res, nil
+}