feat: Workflow engine modules (#6128)

packages/modules-sdk/src/definitions.ts

@@ -16,6 +16,7 @@ export enum Modules {
   PRICING = "pricingService",
   PROMOTION = "promotion",
   AUTHENTICATION = "authentication",
+  WORKFLOW_ENGINE = "workflows",
   CART = "cart",
   CUSTOMER = "customer",
   PAYMENT = "payment",
@@ -30,6 +31,7 @@ export enum ModuleRegistrationName {
   PRICING = "pricingModuleService",
   PROMOTION = "promotionModuleService",
   AUTHENTICATION = "authenticationModuleService",
+  WORKFLOW_ENGINE = "workflowsModuleService",
   CART = "cartModuleService",
   CUSTOMER = "customerModuleService",
   PAYMENT = "paymentModuleService",
@@ -45,6 +47,7 @@ export const MODULE_PACKAGE_NAMES = {
   [Modules.PRICING]: "@medusajs/pricing",
   [Modules.PROMOTION]: "@medusajs/promotion",
   [Modules.AUTHENTICATION]: "@medusajs/authentication",
+  [Modules.WORKFLOW_ENGINE]: "@medusajs/workflow-engine-inmemory",
   [Modules.CART]: "@medusajs/cart",
   [Modules.CUSTOMER]: "@medusajs/customer",
   [Modules.PAYMENT]: "@medusajs/payment",
@@ -165,6 +168,20 @@ export const ModulesDefinition: { [key: string | Modules]: ModuleDefinition } =
         resources: MODULE_RESOURCE_TYPE.SHARED,
       },
     },
+    [Modules.WORKFLOW_ENGINE]: {
+      key: Modules.WORKFLOW_ENGINE,
+      registrationName: ModuleRegistrationName.WORKFLOW_ENGINE,
+      defaultPackage: false,
+      label: upperCaseFirst(ModuleRegistrationName.WORKFLOW_ENGINE),
+      isRequired: false,
+      canOverride: true,
+      isQueryable: true,
+      dependencies: ["logger"],
+      defaultModuleDeclaration: {
+        scope: MODULE_SCOPE.INTERNAL,
+        resources: MODULE_RESOURCE_TYPE.SHARED,
+      },
+    },
     [Modules.CART]: {
       key: Modules.CART,
       registrationName: ModuleRegistrationName.CART,

packages/modules-sdk/src/medusa-app.ts

@@ -245,6 +245,12 @@ export async function MedusaApp({
   registerCustomJoinerConfigs(servicesConfig ?? [])
 
   if (
+    sharedResourcesConfig?.database?.connection &&
+    !injectedDependencies[ContainerRegistrationKeys.PG_CONNECTION]
+  ) {
+    injectedDependencies[ContainerRegistrationKeys.PG_CONNECTION] =
+      sharedResourcesConfig.database.connection
+  } else if (
     dbData.clientUrl &&
     !injectedDependencies[ContainerRegistrationKeys.PG_CONNECTION]
   ) {