# Host appointment booking with Next.js: structured data imports

## Summary
Deploy a appointment booking 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 appointment booking-specific behavior as your application code.

## Prerequisites
- A Next.js project that builds and starts with the documented commands (next build then next start -H 0.0.0.0 -p $PORT on the node-22 template)
- A PostgreSQL driver reading DATABASE_URL at runtime (auto-provisioned when omitted, or supplied with --env)
- A bucket from `ample bucket create` with its credentials passed as encrypted S3_* environment variables
- An Ample account token with servers:write, databases:read, buckets:read

## 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 (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 Keep private data in an unpublished bucket.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.
   
   ```shell
   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`.
   
   ```shell
   ample logs  --kind build
   ```

## Input Schema
- **env**: Encrypted environment variables (bucket credentials, secrets)
- **name**: App name (1-63 characters, lowercase letters, numbers, hyphens)
- **path**: Project directory or ample.toml service (1-512 characters)
- **release_command**: Migration command run before activation (up to 512 characters)

## Examples
- **Next.js pattern fixture**:  Multi-pattern Next.js app whose bulk import staging module was checked live; the module is under tests/deploy-canaries/_pattern-modules.

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

## Limitations
- Verified on the node-22 template at s-1vcpu-1gb with the example fixture; other sizes, templates, and Next.js major versions are not verified.
- The appointment booking specific behavior (import format, mapping, and conflict rules) is application code and was not separately tested.
- Apps auto-pause when idle and wake on the next request; this feature is an operator setting, not a plan feature.