# Host csv import tool with SvelteKit: structured data imports

Deploy a csv import tool built with SvelteKit 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 SvelteKit: 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 csv import tool-specific behavior as your application code.

## Representative Queries
- Host csv import tool with SvelteKit: structured data imports
- Where can I host CSV import tool built with SvelteKit?
- I need a workload-specific import mapping, conflict rules and restart behavior.

## Workflow Steps
1. **Build and start**  
vite build with @sveltejs/adapter-node then node build 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 (imported=2 rejected=1 restart=ok). Copy the approach into your schema; keep migrations idempotent and run them with --release-command.
3. **Wire object storage**  
Create the bucket(s), then pass endpoint, region, bucket and keys as --env values. Use path-style addressing. Keep private data in an unpublished bucket.
4. **Deploy**  
Run the synchronous deploy once and read the result (exit 0 live, 1 failed, 2 blocked). Re-running with no change is a no-op.  
   
   Command: `ample deploy . --name  --public --env S3_ENDPOINT=... --env S3_REGION=... --env S3_BUCKET=... --env S3_ACCESS_KEY_ID=... --env S3_SECRET_ACCESS_KEY=...`
5. **Verify**  
Fetch the live URL and the pattern self-test route(s) (/p/bulk-import-staging) from the example; then run your own checks. On failure read `ample logs --kind build` then `--kind runtime`.  
   
   Command: `ample logs --kind build`

## Input Schema
```json
{
  "type": "object",
  "additionalProperties": false,
  "required": ["env", "name", "path"],
  "properties": {
    "env": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^[A-Z][A-Z0-9_]*=.*$"
      },
      "maxItems": 50,
      "description": "Encrypted environment variables (bucket credentials, secrets)"
    },
    "name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 63,
      "pattern": "^[a-z0-9-]+$",
      "description": "App name"
    },
    "path": {
      "type": "string",
      "minLength": 1,
      "maxLength": 512,
      "description": "Project directory or ample.toml service"
    },
    "release_command": {
      "type": "string",
      "maxLength": 512,
      "description": "Migration command run before activation"
    }
  }
}
```

## Limitations
- Verified on the node-22 template at s-1vcpu-1gb with the example fixture; other sizes, templates and SvelteKit major versions are not verified.
- The csv import tool itself (your import format, mapping and conflict rules) is application code and was not separately tested; the pattern checks are what was verified.

## Cost Estimate
- **Currency:** USD
- **Monthly Amount:** $10.00
- **Components:**  
  - App server (s-1vcpu-1gb): $5.00  
  - Managed PostgreSQL database (s-1vcpu-1gb): $5.00

## Success Checks
- **App responds on its public URL** (kind: http_get, path: /, expect: ample canary sveltekit patterns)
- **Bulk-import-staging self-test** (kind: http_get, path: /p/bulk-import-staging, expect: imported=2 rejected=1 restart=ok)

## Evidence Summary
- **Canary Run:** SvelteKit pattern fixture deployed on Ample; checks passed for bulk-import-staging and configuration-secrets.  
- **Last Verified At:** 2026-09-20T03:31:44Z

## Next Actions
- **Browse the catalog index**  
- **Search published recipes by intent, stack and constraints**  
- **Prepare a side-effect-free deployment plan for an authorized project**  
- **Read the existing agent authentication setup**  
- **Browse CSV import tool**  
- **Browse SvelteKit**  
- **Browse Bulk import staging**  
- **Browse Deploy web app**

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For further details, refer to the [SvelteKit deployment documentation](/content/recipes/csv-import-tool/sveltekit/data-imports/index.html).