feat: Normalize known DB errors to a MedusaError when possible (#6922)

Before we would swallow the error and return a generic error to the user. This will provide more information to the caller if it is one of the known errors.

packages/customer/src/services/customer-module.ts

@@ -106,9 +106,7 @@ export default class CustomerModuleService<
       | CustomerTypes.CreateCustomerDTO[],
     @MedusaContext() sharedContext: Context = {}
   ): Promise<CustomerTypes.CustomerDTO | CustomerTypes.CustomerDTO[]> {
-    const customers = await this.create_(dataOrArray, sharedContext).catch(
-      this.handleDbErrors
-    )
+    const customers = await this.create_(dataOrArray, sharedContext)
 
     const serialized = await this.baseRepository_.serialize<
       CustomerTypes.CustomerDTO[]
@@ -351,9 +349,7 @@ export default class CustomerModuleService<
   ): Promise<
     CustomerTypes.CustomerAddressDTO | CustomerTypes.CustomerAddressDTO[]
   > {
-    const addresses = await this.addAddresses_(data, sharedContext).catch(
-      this.handleDbErrors
-    )
+    const addresses = await this.addAddresses_(data, sharedContext)
 
     const serialized = await this.baseRepository_.serialize<
       CustomerTypes.CustomerAddressDTO[]
@@ -434,7 +430,7 @@ export default class CustomerModuleService<
       sharedContext
     )
 
-    await this.flush(sharedContext).catch(this.handleDbErrors)
+    await this.flush(sharedContext)
 
     const serialized = await this.baseRepository_.serialize<
       CustomerTypes.CustomerAddressDTO[]
@@ -475,25 +471,4 @@ export default class CustomerModuleService<
     const em = (context.manager ?? context.transactionManager) as EntityManager
     await em.flush()
   }
-
-  private async handleDbErrors(err: any) {
-    if (isDuplicateError(err)) {
-      switch (err.constraint) {
-        case UNIQUE_CUSTOMER_SHIPPING_ADDRESS:
-          throw new MedusaError(
-            MedusaError.Types.DUPLICATE_ERROR,
-            "A default shipping address already exists"
-          )
-        case UNIQUE_CUSTOMER_BILLING_ADDRESS:
-          throw new MedusaError(
-            MedusaError.Types.DUPLICATE_ERROR,
-            "A default billing address already exists"
-          )
-        default:
-          break
-      }
-    }
-
-    throw err
-  }
 }