feat(medusa-plugin-sendgrid): Add error messages (#4384)

* add error messages to SendgridService.sendNotification

* add event name to msg for no template set for event

* Create violet-clocks-study.md

---------

Co-authored-by: Oliver Windall Juhl <59018053+olivermrbl@users.noreply.github.com>

.changeset/violet-clocks-study.md

@@ -0,0 +1,5 @@
+---
+"medusa-plugin-sendgrid": patch
+---
+
+feat(medusa-plugin-sendgrid): Add error messages to SendgridService.sendNotification

packages/medusa-plugin-sendgrid/src/services/sendgrid.js

@@ -2,6 +2,7 @@ import SendGrid from "@sendgrid/mail"
 import { humanizeAmount, zeroDecimalCurrencies } from "medusa-core-utils"
 import { NotificationService } from "medusa-interfaces"
 import { IsNull, Not } from "typeorm"
+import { MedusaError } from "@medusajs/utils"
 
 class SendGridService extends NotificationService {
   static identifier = "sendgrid"
@@ -221,10 +222,14 @@ class SendGridService extends NotificationService {
     let templateId = this.getTemplateId(event)
 
     if (!templateId) {
-      return false
+      throw new MedusaError(MedusaError.Types.INVALID_DATA, `Sendgrid service: No template was set for event: ${event}`)
     }
 
     const data = await this.fetchData(event, eventData, attachmentGenerator)
+    if (!data) {
+      throw new MedusaError(MedusaError.Types.INVALID_DATA, "Sendgrid service: Invalid event data was received")
+   }
+
     const attachments = await this.fetchAttachments(
       event,
       data,
@@ -256,9 +261,10 @@ class SendGridService extends NotificationService {
       })
     }
 
-    const status = await SendGrid.send(sendOptions)
-      .then(() => "sent")
-      .catch(() => "failed")
+   let status
+   await this.transporter_.sendMail(sendOptions)
+   .then(() => { status = "sent" })
+   .catch((error) => { status = "failed"; console.log(error) })
 
     // We don't want heavy docs stored in DB
     delete sendOptions.attachments