AntonStoeckl

SCENARIO: A prospective Customer registers her account
  When a Customer registers as [Fiona Gallagher] with [fiona@gallagher.net]
    Then her account should show the data she supplied:
    	GivenName: Fiona
    	FamilyName: Gallagher
    	EmailAddress: fiona@gallagher.net
    	IsEmailAddressConfirmed: false

SCENARIO: A prospective Customer can't register because her email address is already used
  Given a Customer registered as [Fiona Gallagher] with [fiona@gallagher.net]

AntonStoeckl

package shared

import "github.com/cockroachdb/errors"

var (
    ErrInputIsInvalid = errors.New("input is invalid")
    ErrNotFound       = errors.New("not found")
    ErrDuplicate      = errors.New("duplicate")

    ErrDomainConstraintsViolation = errors.New("domain constraints violation")

AntonStoeckl

package value

import (
    "github.com/AntonStoeckl/go-iddd/service/shared"
    "github.com/cockroachdb/errors"
    "github.com/google/uuid"
)

type CustomerID struct {
    value string

AntonStoeckl

package domain

import (
    "github.com/AntonStoeckl/go-iddd/service/customeraccounts/application/domain/customer/value"
    "github.com/AntonStoeckl/go-iddd/service/shared/es"
)

type CustomerRegistered struct {
    customerID       value.CustomerID
    emailAddress     value.EmailAddress

AntonStoeckl

package es

type DomainEvent interface {
    Meta() EventMeta
    IsFailureEvent() bool
    FailureReason() error
}

AntonStoeckl

package es

import (
    "reflect"
    "strings"
    "time"
)

const (
    metaTimestampFormat = time.RFC3339Nano

AntonStoeckl

package domain

import (
    "github.com/AntonStoeckl/go-iddd/service/customeraccounts/application/domain/customer/value"
)

type RegisterCustomer struct {
    customerID       value.CustomerID
    emailAddress     value.EmailAddress
    confirmationHash value.ConfirmationHash

AntonStoeckl

package customer

import (
    "github.com/AntonStoeckl/go-iddd/service/customeraccounts/application/domain"
    "github.com/AntonStoeckl/go-iddd/service/customeraccounts/application/domain/customer/value"
    "github.com/AntonStoeckl/go-iddd/service/shared/es"
)

type currentState struct {
    id                           value.CustomerID

AntonStoeckl

package customer

import (
	"github.com/AntonStoeckl/go-iddd/service/customeraccounts/application/domain"
)

func Register(with domain.RegisterCustomer) domain.CustomerRegistered {
	event := domain.BuildCustomerRegistered(
		with.CustomerID(),
		with.EmailAddress(),

AntonStoeckl

package customer

import (
    "github.com/AntonStoeckl/go-iddd/service/customeraccounts/application/domain"
    "github.com/AntonStoeckl/go-iddd/service/shared/es"
    "github.com/cockroachdb/errors"
)

func ConfirmEmailAddress(eventStream es.EventStream, command domain.ConfirmCustomerEmailAddress) (es.RecordedEvents, error) {
    customer := buildCurrentStateFrom(eventStream)