Add users services and jwt

api/users.go

@@ -0,0 +1,66 @@
+package vex
+
+import (
+	"github.com/google/uuid"
+	"github.com/jmoiron/sqlx"
+	"golang.org/x/crypto/bcrypt"
+)
+
+type User struct {
+	Id       uuid.UUID
+	Name     string
+	Email    string
+	Password []byte
+}
+
+type UserService struct {
+	database *sqlx.DB
+}
+
+func NewUserService(db *sqlx.DB) UserService {
+	return UserService{database: db}
+}
+
+func (s UserService) GetById(id uuid.UUID) *User {
+	var user User
+	err := s.database.Get(&user, "select u.* from users as u where u.id = $1", id)
+	if err != nil {
+		return nil
+	}
+	return &user
+}
+
+func (s UserService) GetByEmail(email string) *User {
+	var user User
+	err := s.database.Get(&user, "select u.* from users as u where u.email = $1", email)
+	if err != nil {
+		return nil
+	}
+	return &user
+}
+
+func (s UserService) CheckPassword(password string, reference []byte) bool {
+	return bcrypt.CompareHashAndPassword(reference, []byte(password)) == nil
+}
+
+func (s UserService) Create(name string, email string, password string) (User, error) {
+	pass, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return User{}, err
+	}
+	user := User{
+		Id:       uuid.New(),
+		Name:     name,
+		Email:    email,
+		Password: pass,
+	}
+	_, err = s.database.NamedExec(
+		`insert into users (id, name, email, password)
+		values (:id, :name, :email, :password)`,
+		user,
+	)
+	if err != nil {
+		return User{}, err
+	}
+	return user, nil
+}