Saas-voc-server/README.md

SaaS VOC Server

Independent backend template for the domestic ecommerce VOC product. The first case workspace is Demashi on JD. This repository does not connect to the cross-border production database and does not contain any Fmode, Parse, PostgreSQL, or supplier credential.

Current state

Completed on 2026-07-23:

• Independent Git repository and Node.js 22 / TypeScript service baseline.
• Independent PostgreSQL schema with workspace, source, product, metric, relation, review, import, and sync-job tables.
• Independent Parse Server application configuration on the same dedicated database.
• Strict startup validation for every required credential.
• GET /health database readiness check.
• POST /api/domestic-voc/sync idempotent manual-sync queue entry.
• GET /api/domestic-voc/jobs/:id sync-job status.
• GET /api/domestic-voc/snapshot response compatible with the frontend DomesticDataset interface.
• Server-side Fmode gateway client with timeout, retry, and credential redaction behavior.
• Deterministic identities for products, relations, reviews, and daily sync requests.
• Bounded batch importer for the normalized Demashi dataset.
• Database-free local demo runtime for frontend integration before infrastructure is provisioned.

The current case import resolves to 2,817 operating products, 9,717 daily metrics, 40 relations, and 38 internal relation_stub records required to preserve foreign keys. Stub records are excluded from the frontend product list and are never presented as collected product facts.

The worker calls JD product-detail and review paths only through the company /api/voc-e-commerce gateway. It never sends a browser request to a supplier endpoint and never returns raw gateway errors or credentials.

Architecture

Saas-voc frontend
  -> saas-voc-server
      -> dedicated Parse application
      -> dedicated PostgreSQL database (voc schema)
      -> sync queue
          -> existing /api/voc-e-commerce gateway

The browser only calls this service. FMODE_API_KEY is used in the server-side Authorization header and is never returned to the browser or included in a request URL.

Registered JD gateway contracts:

GET /api/voc-e-commerce/jd/get-item-detail/v1?itemId={productId}
GET /api/voc-e-commerce/jd/get-item-comments/v1?itemId={productId}&page={page}

The first worker run defaults to one review page. JD_REVIEW_MAX_PAGES can raise the bounded limit after quota and response validation.

Runtime

Use Node.js 22.13 or newer within the Node 22 release line. The repository intentionally pins Node 22 because Parse Server publishes explicit supported runtime ranges.

Required configuration is listed in .env.example. Empty secrets are rejected before the HTTP server starts. Generate independent random values for PARSE_MASTER_KEY and PARSE_MAINTENANCE_KEY; do not reuse any value from moshengqi-server or future-server. DATABASE_URL is the least-privilege runtime connection. MIGRATION_DATABASE_URL is the schema-owner connection used only by npm run migrate; it falls back to DATABASE_URL for local development.

Local frontend integration without a database

The local demo runtime has no PostgreSQL, Parse, or gateway credential dependency. From this repository run:

npm ci
npm run start:local

It loads ../../Saas-voc/src/assets/data/demashi-summary.json by default and listens on http://127.0.0.1:4400. Override the source only when the repositories are stored elsewhere:

$env:LOCAL_DATASET_PATH = 'E:\path\to\demashi-summary.json'
npm run start:local

Local demo sync requests create queryable in-memory completion records that validate whether requested products exist in the packaged dataset. They do not collect external data or persist anything. Production collection and persistence remain in npm run dev.

Database-backed runtime

Local database:

$env:POSTGRES_PASSWORD = '<local-only-password>'
docker compose up -d postgres

The compose database listens only on 127.0.0.1:54329. A local DATABASE_URL therefore uses database saas_voc on port 54329.

Install, migrate, and run:

npm ci
npm run migrate
npm run dev

Import the current normalized case after migration:

npm run import:dataset -- "E:\workspace\Saas-voc\src\assets\data\demashi-summary.json"

Default local API address:

http://127.0.0.1:4400

API

Queue a JD product and review sync:

POST /api/domestic-voc/sync
Idempotency-Key: optional-client-key
Content-Type: application/json

{
  "workspaceId": "demashi",
  "platform": "jd",
  "productIds": ["11266507445"],
  "scopes": ["product", "reviews"]
}

When Idempotency-Key is absent, the service derives a stable key from workspace, platform, products, scopes, and UTC date. The same daily request returns the same job.

Read status and frontend data:

GET /api/domestic-voc/jobs/{jobId}
GET /api/domestic-voc/snapshot?workspaceId=demashi&platform=jd

An empty database returns a valid empty dataset. It does not invent reviews, ratings, sentiment, pain points, or AI output.

Database rules

• Runtime identities are enforced by composite unique constraints, not by check-then-insert logic.
• Import and sync writers must use INSERT ... ON CONFLICT in batches.
• Foreign-key columns and common workspace/date filters are indexed.
• Workers claim jobs with FOR UPDATE SKIP LOCKED.
• External HTTP requests must run outside database transactions.
• Production deployments must use a pooled, least-privilege runtime role. Migration credentials should be separate from runtime credentials.
• The HTTP server never runs DDL automatically; migrations are an explicit deployment step.

Security status

parse-server@9.10.0 replaces the initially evaluated v8 line, removing all high and critical audit findings. A ws@8.21.0 override is retained because Parse currently pins an older vulnerable patch. The remaining audit findings are moderate transitive dependencies in Parse push/Firebase and redirect support; push and LiveQuery are not configured in this template. Re-run npm audit --omit=dev before each deployment and do not use npm audit fix --force, which currently proposes an unsafe Parse downgrade.

Verification

npm run build
npm test
npm audit --omit=dev

Current result:

• TypeScript build: passed.
• Unit, adapter, worker, local-demo, and HTTP contract tests: 20 passed.
• Production dependency audit: 0 critical, 0 high, 13 moderate.
• Company gateway health: HTTP 200 on 2026-07-23.
• Credentialed live JD product-detail request: passed through the company gateway for product 11266507445; the adapter extracted the product id, title, and brand from the live double-data envelope.
• Credentialed live JD review request: authenticated successfully and returned an empty first page with next-page metadata. A non-empty review sample is still required before review evidence can be accepted.
• The live credential was process-only: it was not written to an environment file, source file, fixture, log, or Git history. No supplier endpoint was contacted directly.
• PostgreSQL integration: pending a newly provisioned database; the cross-border production database is intentionally excluded.

See TASKS.md for the implementation sequence and acceptance boundary.