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pubsubhandler.go
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/
pubsubhandler.go
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package main
import (
"cloud.google.com/go/datastore"
"cloud.google.com/go/pubsub"
"context"
"github.com/k-yomo/eitan/src/internal/pb/eitan"
"github.com/k-yomo/eitan/src/notification_service/internal/email"
"github.com/pkg/errors"
"github.com/sendgrid/sendgrid-go/helpers/mail"
"google.golang.org/protobuf/proto"
)
type PubSubHandler struct {
dsClient *datastore.Client
emailClient email.Client
}
func NewPubSubHandler(dsClient *datastore.Client, emailClient email.Client) *PubSubHandler {
return &PubSubHandler{
dsClient: dsClient,
emailClient: emailClient,
}
}
func (p *PubSubHandler) HandleUserRegisteredEvent(ctx context.Context, m *pubsub.Message) error {
userRegisteredEvent := eitan.UserRegisteredEvent{}
if err := proto.Unmarshal(m.Data, &userRegisteredEvent); err != nil {
return errors.Wrap(err, "proto.Unmarshal")
}
sgmail := mail.NewSingleEmail(
&mail.Email{Name: userRegisteredEvent.DisplayName, Address: userRegisteredEvent.Email},
"Welcome to Eitan!",
&mail.Email{Name: userRegisteredEvent.DisplayName, Address: userRegisteredEvent.Email},
// TODO: fix body
`
Dear `+userRegisteredEvent.DisplayName+`,
Thank you for signing up for Eitan.
Best wishes,
Eitan Team
`,
"",
)
if err := p.emailClient.Send(ctx, sgmail); err != nil {
return err
}
return nil
}