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AchoArnoldAchoArnold
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Create boiler plate for failed email notifications
1 parent fd5c60c commit 2dab2b0

4 files changed

Lines changed: 131 additions & 1 deletion

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‎api/pkg/emails/notification_email_factory.go‎

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package emails
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// NotificationEmailFactory generates emails to users about a message
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type NotificationEmailFactory interface{}

‎api/pkg/emails/user_email.go‎

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This file was deleted.

‎api/pkg/listeners/email_notification_listener.go‎

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package listeners
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import (
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"context"
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"fmt"
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"github.com/NdoleStudio/httpsms/pkg/events"
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"github.com/NdoleStudio/httpsms/pkg/services"
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"github.com/NdoleStudio/httpsms/pkg/telemetry"
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cloudevents "github.com/cloudevents/sdk-go/v2"
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"github.com/palantir/stacktrace"
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)
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// EmailNotificationListener listens for events about failed and expired messages
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type EmailNotificationListener struct {
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logger telemetry.Logger
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tracer telemetry.Tracer
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service *services.EmailNotificationService
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}
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// NewEmailNotificationListener creates a new instance of emailNotificationListener
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func NewEmailNotificationListener(
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logger telemetry.Logger,
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tracer telemetry.Tracer,
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service *services.EmailNotificationService,
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) (l *EmailNotificationListener, routes map[string]events.EventListener) {
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l = &EmailNotificationListener{
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logger: logger.WithService(fmt.Sprintf("%T", l)),
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tracer: tracer,
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service: service,
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}
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return l, map[string]events.EventListener{
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events.EventTypeMessageSendExpired: l.OnMessageSendExpired,
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events.EventTypeMessageSendFailed: l.OnMessageSendFailed,
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}
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}
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// OnMessageSendExpired handles the events.EventTypeMessageSendExpired event
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func (listener *EmailNotificationListener) OnMessageSendExpired(ctx context.Context, event cloudevents.Event) error {
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ctx, span := listener.tracer.Start(ctx)
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defer span.End()
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payload := new(events.MessageSendExpiredPayload)
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if err := event.DataAs(&payload); err != nil {
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msg := fmt.Sprintf("cannot decode [%s] into [%T]", event.Data(), payload)
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return listener.tracer.WrapErrorSpan(span, stacktrace.Propagate(err, msg))
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}
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if err := listener.service.NotifyMessageExpired(ctx, payload); err != nil {
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msg := fmt.Sprintf("cannot process [%s] event with ID [%s]", event.Type(), event.ID())
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return listener.tracer.WrapErrorSpan(span, stacktrace.Propagate(err, msg))
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}
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return nil
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}
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// OnMessageSendFailed handles the events.EventTypeMessageSendFailed event
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func (listener *EmailNotificationListener) OnMessageSendFailed(ctx context.Context, event cloudevents.Event) error {
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ctx, span := listener.tracer.Start(ctx)
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defer span.End()
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payload := new(events.MessageSendFailedPayload)
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if err := event.DataAs(&payload); err != nil {
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msg := fmt.Sprintf("cannot decode [%s] into [%T]", event.Data(), payload)
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return listener.tracer.WrapErrorSpan(span, stacktrace.Propagate(err, msg))
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}
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if err := listener.service.NotifyMessageFailed(ctx, payload); err != nil {
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msg := fmt.Sprintf("cannot process [%s] event with ID [%s]", event.Type(), event.ID())
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return listener.tracer.WrapErrorSpan(span, stacktrace.Propagate(err, msg))
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}
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return nil
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}

‎api/pkg/services/email_notification_service.go‎

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package services
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import (
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"context"
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"fmt"
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"github.com/NdoleStudio/httpsms/pkg/cache"
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"github.com/NdoleStudio/httpsms/pkg/emails"
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"github.com/NdoleStudio/httpsms/pkg/events"
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"github.com/NdoleStudio/httpsms/pkg/repositories"
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"github.com/NdoleStudio/httpsms/pkg/telemetry"
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)
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// EmailNotificationService is responsible for handling email notifications about messages
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type EmailNotificationService struct {
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service
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logger telemetry.Logger
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tracer telemetry.Tracer
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userRepository repositories.UserRepository
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factory emails.NotificationEmailFactory
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mailer emails.Mailer
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cache cache.Cache
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}
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// NewEmailNotificationService creates a new EmailNotificationService
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func NewEmailNotificationService(
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logger telemetry.Logger,
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tracer telemetry.Tracer,
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userRepository repositories.UserRepository,
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factory emails.NotificationEmailFactory,
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mailer emails.Mailer,
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cache cache.Cache,
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) *EmailNotificationService {
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return &EmailNotificationService{
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logger: logger.WithService(fmt.Sprintf("%T", &EmailNotificationService{})),
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tracer: tracer,
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userRepository: userRepository,
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factory: factory,
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mailer: mailer,
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cache: cache,
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}
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}
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// NotifyMessageExpired sends an email to the user about an expired message
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func (service *EmailNotificationService) NotifyMessageExpired(ctx context.Context, payload *events.MessageSendExpiredPayload) error {
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return nil
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}
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// NotifyMessageFailed sends an email to the user about a failed message
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func (service *EmailNotificationService) NotifyMessageFailed(ctx context.Context, payload *events.MessageSendFailedPayload) error {
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return nil
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}

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