fix(webshipper): allow cancelling WS orders with error status (#1755)

packages/medusa-fulfillment-webshipper/README.md

@@ -1,6 +1,6 @@
 # medusa-fulfillment-webshipper
 
-Adds Webshipper as a fulfilment provider in Medusa Commerce. 
+Adds Webshipper as a fulfilment provider in Medusa Commerce.
 
 On each new fulfillment an order is created in Webshipper. The plugin listens for shipment events and updated the shipment accordingly.
 A webhook listener is exposed at `/webshipper/shipments` to listen for shipment creations. You must create this webhook in Webshipper to have Medusa listen for shipment events.
@@ -13,4 +13,5 @@ A webhook listener is exposed at `/webshipper/shipments` to listen for shipment
   order_channel_id: [the channel id to register orders on] (required)
   webhook_secret: [the webhook secret used to listen for shipments] (required)
   coo_countries: [an array of countries in which a Certificate of Origin will be attached] (default: "all")
+  delete_on_cancel [determines whether Webshipper orders are deleted when a Medusa fulfillment is canceled] (default: false)
 ```

packages/medusa-fulfillment-webshipper/src/services/webshipper-fulfillment.js

@@ -623,19 +623,17 @@ class WebshipperFulfillmentService extends FulfillmentService {
       return Promise.resolve()
     }
 
-    if (order) {
-      if (
-        order.data.attributes.status !== "pending" &&
-        order.data.attributes.status !== "missing_rate"
-      ) {
-        if (order.data.attributes.status === "cancelled") {
-          return Promise.resolve(order)
-        }
-        throw new Error("Cannot cancel order")
-      }
+    if (this.options_.delete_on_cancel) {
+      return await this.client_.orders.delete(data.id)
     }
 
-    return this.client_.orders.delete(data.id)
+    return await this.client_.orders.update(data.id, {
+      id: data.id,
+      type: "orders",
+      attributes: {
+        status: "cancelled",
+      },
+    })
   }
 }
 

packages/medusa-fulfillment-webshipper/src/utils/webshipper.js

@@ -83,6 +83,16 @@ class Webshipper {
           },
         }).then(({ data }) => data)
       },
+      update: async (id, data) => {
+        const path = `/v2/orders/${id}`
+        return this.client_({
+          method: "PATCH",
+          url: path,
+          data: {
+            data,
+          },
+        }).then(({ data }) => data)
+      },
       delete: async (id) => {
         const path = `/v2/orders/${id}`
         return this.client_({