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repository.go
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/
repository.go
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package lib
import (
"errors"
)
type User struct {
FirstName string `json:"firstname"`
LastName string `json:"lastname"`
Email string `json:email"`
}
type UserRepository interface {
GetAll() []User
Create(User) error
Validate(User) error
}
type InMemoryUserRepository struct {
DataStore []User
}
func (repo *InMemoryUserRepository) GetAll() []User {
return repo.DataStore
}
func (repo *InMemoryUserRepository) Create(user User) error {
err := repo.Validate(user)
if err != nil {
return err
}
repo.DataStore = append(repo.DataStore, user)
return nil
}
func (repo *InMemoryUserRepository) Validate(user User) error {
for _, u := range repo.DataStore {
if u.Email == user.Email {
return errors.New("The Email is already exists")
}
}
return nil
}
func NewInMemoryUserRepo() *InMemoryUserRepository {
return &InMemoryUserRepository{DataStore: []User{}}
}