usecase

Documentation

Overview

Package usecase is a layer responsible for driving the workflow of the application, matching the use cases at hand. These operations are interface-independent and can be both synchronous or message-driven. This layer is well suited for spanning transactions, high-level logging and security. The application layer is thin in terms of domain logic it merely coordinates the domain layer objects to perform the actual work.

Index

• Variables
• type CreateUserDTO
  • func NewCreateUserDTO(email user.EmailAddress, password user.Password) *CreateUserDTO
  • func (c CreateUserDTO) Validate() (err *apperror.AppError)
• type CreateUserUseCase
  • func NewCreateUserUseCase(repo user.Repository) CreateUserUseCase
  • func (u CreateUserUseCase) Execute(ctx context.Context, dto *CreateUserDTO) *apperror.AppError

Variables

var (
	// ErrEmailAlreadyInUse is when given email is already in use.
	ErrEmailAlreadyInUse = apperror.NewBadRequest("email address is already in use")
)

Types

type CreateUserDTO

type CreateUserDTO struct {
	Email    user.EmailAddress `json:"email,omitempty"`
	Password user.Password     `json:"password,omitempty"`
}

CreateUserDTO defines data required for creating an user.

func NewCreateUserDTO

func NewCreateUserDTO(email user.EmailAddress, password user.Password) *CreateUserDTO

NewCreateUserDTO creates a CreateUserDTO.

func (CreateUserDTO) Validate

func (c CreateUserDTO) Validate() (err *apperror.AppError)

Validate checks if the DTO has valid data

type CreateUserUseCase

type CreateUserUseCase struct {
	// contains filtered or unexported fields
}

CreateUserUseCase implements the logic for creatring an User.

func NewCreateUserUseCase

func NewCreateUserUseCase(repo user.Repository) CreateUserUseCase

NewCreateUserUseCase creates a new Create User use case.

func (CreateUserUseCase) Execute

func (u CreateUserUseCase) Execute(ctx context.Context, dto *CreateUserDTO) *apperror.AppError