Add login endpoint and generate a valid token

server/services/store/user.go

@@ -68,6 +68,29 @@ func (us *UserStore) GetByID(id int) (*model.User, error) {
 	return users[0], nil
 }
 
+func (us *UserStore) GetByUsername(username string) (*model.User, error) {
+	query := us.Q().Select(userColumns...).
+		From("users").
+		Where(sq.Eq{"username": username})
+
+	rows, err := query.Query()
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	users, err := us.usersFromRows(rows)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(users) == 0 {
+		return nil, sql.ErrNoRows
+	}
+
+	return users[0], nil
+}
+
 func (us *UserStore) Create(user *model.User) (*model.User, error) {
 	query := us.Q().Insert("users").
 		Columns(userColumns[1:]...).