fix(medusa-plugin-sendgrid): Adds order shipped support

packages/medusa-plugin-sendgrid/README.md

@@ -13,6 +13,7 @@ If no values are defined for a given option, the plugin will not try to send an
   gift_card_created_template: [used on gift_card.created],
   order_placed_template: [used on order.placed],
   order_cancelled_template: [used on order.cancelled],
+  order_shipped_template: [used on order.shipment_created],
   order_completed_template: [used on order.completed],
   user_password_reset_template: [used on user.password_reset],
   customer_password_reset_template: [used on customer.password_reset]

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

@@ -42,6 +42,9 @@ class SendGridService extends BaseService {
       case "order.updated":
         templateId = this.options_.order_updated_template
         break
+      case "order.shipment_created":
+        templateId = this.options_.order_shipped_template
+        break
       case "order.cancelled":
         templateId = this.options_.order_cancelled_template
         break

packages/medusa-plugin-sendgrid/src/subscribers/order.js

@@ -1,9 +1,31 @@
 class OrderSubscriber {
-  constructor({ totalsService, sendgridService, eventBusService }) {
+  constructor({
+    totalsService,
+    orderService,
+    sendgridService,
+    eventBusService,
+  }) {
+    this.orderService_ = orderService
     this.totalsService_ = totalsService
     this.sendgridService_ = sendgridService
     this.eventBus_ = eventBusService
 
+    this.eventBus_.subscribe(
+      "order.shipment_created",
+      async ({ order_id, shipment }) => {
+        const order = await this.orderService_.retrieve(order_id)
+        const data = {
+          ...order,
+          tracking_number: shipment.tracking_numbers.join(", "),
+        }
+
+        await this.sendgridService_.transactionalEmail(
+          "order.shipment_created",
+          data
+        )
+      }
+    )
+
     this.eventBus_.subscribe("order.gift_card_created", async (order) => {
       await this.sendgridService_.transactionalEmail(
         "order.gift_card_created",