### Host order tracking with ASP.NET Core: authorized file delivery

Deploy a order tracking built with ASP.NET Core on Ample using the generated downloads 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 ASP.NET Core: an export query rendered to a CSV artifact stored with metadata in a private bucket and returned only to an authorized caller (401 without token, export=ok rows=3). Not separately tested: your export formats, retention policy and entitlement model; treat the order tracking-specific behavior as your application code.

#### Representative Queries
- Host order tracking with ASP.NET Core: authorized file delivery
- Where can I host Order tracking built with ASP.NET Core?
- I need a file entitlement model and an application-enforced download authorization flow.

#### Parent Resources
- **Order tracking**: [Canonical Path](/discover/workload/order-tracking)
- **ASP.NET Core**: [Canonical Path](/discover/stack/framework-asp-net-core)
- **Generated downloads**: [Canonical Path](/discover/pattern/generated-downloads)
- **Deploy web app**: [Canonical Path](/discover/intent/deploy-web-app)

#### Resource Requirements
- Compute
- PostgreSQL
- 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**: dotnet publish -c Release -o out in the builder, then dotnet .dll on the dotnet-10 template with ASPNETCORE_URLS bound to PORT. The server must bind 0.0.0.0 on PORT.
2. **Implement the pattern on PostgreSQL**: 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. Keep private data in an unpublished bucket.
4. **Deploy**: Run the synchronous deploy once and read the result. Re-running with no change is a no-op.
5. **Verify**: Fetch the live URL and the pattern self-test route(s) from the example; then run your own checks.

#### Examples
- **ASP.NET Core pattern fixture**: Multi-pattern ASP.NET Core app whose generated downloads module was checked live; the module is under tests/deploy-canaries/_pattern-modules.

#### Success Checks
- **App responds on its public URL**: ample canary asp net core patterns.
- **Generated-downloads self-test**: export=ok rows=3 (with ?token=...; 401 without).

#### Limitations
- Verified on the dotnet-10 template at s-1vcpu-1gb with the example fixture; other sizes, templates and ASP.NET Core major versions are not verified. 
- The order tracking itself (your export formats, retention policy and entitlement model) is application code and was not separately tested.

#### Cost Estimate
- **Monthly Amount**: $10.00
  - **App Server**: $5.00 (Size: s-1vcpu-1gb, Quantity: 1.0)
  - **Managed PostgreSQL Database**: $5.00 (Size: s-1vcpu-1gb, Quantity: 1.0)

### Evidence Summary
1. **Canary run**: ASP.NET Core pattern fixture deployed on Ample; checks passed for generated-downloads and configuration-secrets.
2. **Canary run**: The same ASP.NET Core app deployed with a --release-command migration.

### Unknowns
- Region availability is unknown until a verified region fact is recorded.
- Compliance attestations are unknown; none are claimed.

### Formats
- [HTML](/content/recipes/order-tracking/asp-net-core/download-delivery/index.html)
- [Markdown](/content/recipes/order-tracking/asp-net-core/download-delivery.md)
- [JSON](https://api.ample.computer/v1/catalog/recipes/page%3Arecipes%3Aorder-tracking%3Aasp-net-core%3Adownload-delivery)

### Next Actions
1. **Browse the catalog index**
2. **Search published recipes by intent, stack and constraints** 
3. **Prepare a side-effect-free deployment plan for an authorized project** 
4. **Read the existing agent authentication setup** 
5. **Browse Order tracking** 
6. **Browse ASP.NET Core** 
7. **Browse Generated downloads** 
8. **Browse Deploy web app**