Resolving Dependency Challenges in ESHOPMAN Core Workflows

Understanding Dependency Resolution in ESHOPMAN Core Workflows

As an ESHOPMAN developer, working with the platform's Node.js/TypeScript architecture means navigating a sophisticated module ecosystem. Proper dependency management is crucial for stable storefronts and reliable Admin API operations. Recently, our community identified and resolved a significant dependency issue within the ESHOPMAN Core Workflows module, highlighting best practices for module declarations and preventing common development pitfalls.

The Challenge: Undeclared Imports in ESHOPMAN Core Workflows

The ESHOPMAN Core Workflows module, a vital component for managing various commerce processes, was found to be directly importing internal ESHOPMAN SDKs and utility packages without explicitly listing them in its package.json dependencies. Specifically, modules like eshopman-workflows-sdk and eshopman-utils were being referenced in several core files:

• src/cart/steps/validate-shipping.ts
• src/cart/steps/validate-shipping-methods-data.ts
• src/common/steps/use-query-graph.ts
• src/payment/workflows/process-payment.ts
• src/order/workflows/transfer/request-order-transfer.ts
• src/order/workflows/transfer/accept-order-transfer.ts

This oversight meant that these modules would only resolve correctly if the package manager (like npm or yarn) happened to "hoist" them from other parts of the dependency tree. However, with stricter package managers such as pnpm, or in scenarios where multiple versions of a package exist after an upgrade, hoisting is often skipped. This led to critical failures:

• Development Environment Crashes: Running the eshopman develop command would fail with errors like Error: Cannot find module '@eshopman/workflows-sdk'.
• Storefront and Admin API Errors: Endpoints, particularly those related to cart management (e.g., POST /eshopman/store/carts), would return 500 errors, manifesting as TypeError: undefined is not a function during workflow execution.

The Expected Behavior and the Solution

The ESHOPMAN Framework is designed to consolidate and expose internal modules consistently. The expected behavior for any ESHOPMAN module is to declare all its direct dependencies or, if referencing internal framework components, to import them via the overarching eshopman-framework umbrella.

The solution involved updating the problematic files within the ESHOPMAN Core Workflows module to route their imports through the eshopman-framework. This ensures that all necessary internal SDKs and utilities are resolved correctly, adhering to the declared dependency structure. For example, an import that previously looked like this:

import { SomeWorkflowFunction } from '@eshopman/workflows-sdk';

Was corrected to:

import { SomeWorkflowFunction } from '@eshopman/framework/workflows-sdk';

Similarly, for utilities:

import { someUtil } from '@eshopman/utils';

Became:

import { someUtil } from '@eshopman/framework/utils';

This change guarantees that the ESHOPMAN Core Workflows module explicitly relies on its declared dependency (eshopman-framework), which in turn properly manages and exposes the eshopman-workflows-sdk and eshopman-utils packages. This resolves the module resolution issues, ensuring stable development environments and reliable ESHOPMAN storefront and Admin API operations.

Key Takeaway for ESHOPMAN Developers

This incident underscores the importance of meticulous dependency management in Node.js/TypeScript projects, especially within a sophisticated headless commerce platform like ESHOPMAN. Always ensure that your custom ESHOPMAN modules or integrations explicitly declare all their direct dependencies. When leveraging core ESHOPMAN components, follow the recommended import paths through the eshopman-framework to maintain consistency and prevent unexpected module resolution errors, particularly when deploying to HubSpot CMS or managing your storefront within HubSpot.