# Host Inventory Manager with Next.js: CSV Imports

Deploy an inventory manager built with Next.js on Ample using the bulk import staging pattern. Compute runs the app in an isolated microVM behind a public HTTPS URL, a managed PostgreSQL 16 database is auto-provisioned and injected as DATABASE_URL, a private S3-compatible bucket holds objects with credentials delivered as encrypted environment variables. Verified on Next.js: a CSV staged as an object, row-level validation with per-row errors recorded, and a restart-safe import keyed by import id (imported=2 rejected=1 restart=ok). Not separately tested: your import format, mapping and conflict rules; treat the inventory manager-specific behavior as your application code.

## Representative Queries
- Host inventory manager with Next.js: CSV imports
- Where can I host Inventory manager built with Next.js?
- I need a domain CSV format, row validation, deduplication and an import recovery path.

## Parent Relationships
- **Inventory Manager**: `/discover/workload/inventory-manager`
- **Next.js**: `/discover/stack/framework-next-js`
- **Bulk Import Staging**: `/discover/pattern/bulk-import-staging`
- **Deploy Web App**: `/discover/intent/deploy-web-app`

## Resource Requirements
- Compute
- Postgres
- S3-compatible object storage

## Infrastructure Requirements
1. **Compute**: Apps run in isolated x86_64 Firecracker microVMs that auto-pause when idle and wake on request; sizes are the priced VM sizes.
2. **Postgres**: Managed PostgreSQL 16 runs in its own microVM and is auto-provisioned when an app needs a database and no DATABASE_URL is supplied.
3. **S3-compatible Object Storage**: Buckets are S3-compatible with issued credentials; PutObject and GetObject are verified by canary. Other S3 operations are not verified.

## Workflow Steps
1. **Build and Start**: `next build then next start -H 0.0.0.0 -p $PORT on the node-22 template`. The server must bind 0.0.0.0 on PORT.
2. **Implement the Pattern on PostgreSQL**: The fixture's module implements bulk import staging: a CSV staged as an object, row-level validation with per-row errors recorded, and a restart-safe import keyed by import id.
3. **Wire Object Storage**: Create the bucket(s), then pass endpoint, region, bucket and keys as --env values. Use path-style addressing.
4. **Deploy**: Run the synchronous deploy once and read the result.
5. **Verify**: Fetch the live URL and the pattern self-test route(s) from the example; then run your own checks.

## Cost Estimate
- **Monthly Amount**: $10.00 USD
- **Components**:
  - App server: size `s-1vcpu-1gb`, quantity `1.0` - monthly amount: $5.00
  - Managed PostgreSQL database: size `s-1vcpu-1gb`, quantity `1.0` - monthly amount: $5.00

## Limitations
- Verified on the node-22 template at s-1vcpu-1gb with the example fixture; other sizes and templates are not verified. 
- The inventory manager itself is application code and was not separately tested.

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