node-backend skillA
node-backend is agent-read markdown (skill) from orcaqubits/agentic-commerce-skills-plugins: Build Node.js backends for Medusa v2 — Express middleware chain, MikroORM entity patterns, PostgreSQL connection pooling, async patterns, error handling, and logging. Use when working with Medusa's Node.js runtime..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Node.js Backend Patterns for Medusa v2
## Before writing code
**Fetch live docs**:
1. Web-search `site:docs.medusajs.com api routes middlewares express` for middleware configuration
2. Web-search `site:mikro-orm.io docs` for MikroORM entity and query patterns
3. Web-search `site:docs.medusajs.com error handling MedusaError` for error types
4. Fetch `https://docs.medusajs.com/learn/fundamentals/api-routes` for API route conventions
5. Web-search `site:node.org docs async_hooks performance` for Node.js async best practices
## Express Middleware Chain
### Medusa Request Lifecycle
Medusa v2 is built on Express. Every HTTP request flows through a defined middleware chain:
```
Incoming Request
├── 1. CORS middleware
├── 2. Body parser (JSON)
├── 3. Cookie parser / session
├── 4. Authentication middleware
├── 5. Custom middlewares (middlewares.ts)
├── 6. Route handler (route.ts)
└── 7. Error handler
```
### Custom Middleware Registration
Define custom middleware in `src/api/middlewares.ts`:
```ts
// Fetch live docs for defineMiddlewares
// and MiddlewareRoute type signatures
import { defineMiddlewares } from "@medusajs/medusa"
```
| Middleware Property | Purpose |
…Read the whole file at its exact version.
How to install
mdr add orcaqubits/agentic-commerce-skills-plugins/node-backend@git:20260326.769051fmdr add orcaqubits/agentic-commerce-skills-plugins/node-backend@sha256:6e7b394bbc2676ffPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_cpf32qwb7o6z6qd3)
1 badge views in 30 days
Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8356 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
orcaqubits/agentic-commerce-skills-plugins · 39 stars · license MIT · pushed 2026-09-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_cpf32qwb7o6z6qd3 GET https://markdownregistry.com/api/v1/resolve?ref=orcaqubits/agentic-commerce-skills-plugins/node-backend GET https://markdownregistry.com/api/v1/blob/6e7b394bbc2676ffba1d22fe0ef34ed21a5c56a6e153e98f113e198eb2dc3355
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
More from orcaqubits/agentic-commerce-skills-plugins
Every file in orcaqubits/agentic-commerce-skills-plugins