page:guides:hono:private file access

Enforce private-file authorization for Hono

Summary

Private file access for a Hono app on Ample. Verified on Hono: a role-to-document access model with negative tests (401, 403) and an authorized private-bucket round-trip (private=ok). Build and start: npm install and npm run start with @hono/node-server on the node-22 template.

Representative Queries

Enforce private-file authorization for Hono
Where can I host Enforce private-file authorization built with Hono?
I need application identity integration, per-file access rules and negative authorization tests.

Resource Requirements

primitive:compute
primitive:postgres
primitive:s3-compatible-object-storage

Infrastructure Requirements

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

Prerequisites

A Hono project (npm install and npm run start with @hono/node-server on the node-22 template)
A PostgreSQL driver reading DATABASE_URL at runtime
A bucket from ample bucket create with credentials passed as encrypted S3_* environment variables
An Ample account token with servers:write, databases:read, buckets:read

Workflow Steps

Build and start
npm install and npm run start with @hono/node-server on the node-22 template; the server must bind 0.0.0.0 on PORT.
Create the bucket and pass its credentials
Create it once with ample bucket create, then pass endpoint, region, bucket and keys with --env; use path-style addressing.
```
ample deploy . --name  --public --env S3_ENDPOINT=... --env S3_REGION=... --env S3_BUCKET=... --env S3_ACCESS_KEY_ID=... --env S3_SECRET_ACCESS_KEY=...
```
Authorize before touching storage
Return 401 for unauthenticated requests and 403 for the wrong role; keep the bucket unpublished and stream objects through the app.
Verify
Fetch the live URL and /p/private-document-library on the example; on failure read the build and runtime logs.
```
ample logs  --kind build
```

Examples

Hono pattern fixture
Verified private file access on Hono.
- Source Reference: tests/deploy-canaries/hono-patterns

Success Checks

App responds on its public URL
- Kind: http_get
- Path: /
- Expect: ample canary hono patterns
Private-document-library check from the example
- Kind: http_get
- Path: /p/private-document-library
- Expect: see the pattern fixture checks

Limitations

Verified on the node-22 template at s-1vcpu-1gb; other sizes and Hono major versions are not verified.
Region, compliance attestations and request-duration limits are unknown and not claimed.
Managed PostgreSQL 16 only; extensions, connection limits and backup or restore procedures are not verified.
PutObject and GetObject with path-style addressing are verified; other S3 operations are not.

Cost Estimate

Currency: USD
Monthly Amount: 10.0
Authoritative: true
Basis: size prices from pricing.toml (loaded by the API) at build revision 1ac5595375130d45290090e82ed0f554ccd45405-dirty
Components:
- App server (s-1vcpu-1gb), quantity: 1.0, monthlyAmount: 5.0
- Managed PostgreSQL database (s-1vcpu-1gb), quantity: 1.0, monthlyAmount: 5.0
Note: Always-on monthly price of the tested sizes; apps auto-pause when idle. Buckets are allocation-priced per quota and not included.

Evidence Summary

Canary Run
Hono pattern fixture deployed on Ample (npm install and npm run start with @hono/node-server on the node-22 template); for this guide: a role-to-document access model with negative tests (401, 403) and an authorized private-bucket round-trip (private=ok).
- Observed At: 2026-09-21T01:14:18Z
- Implementation Revision: 50dbac567d2c5cc8e55e6c748a646be0025d9cfb-dirty (CLI 0.1.21)
- Expires At: 2027-03-20T01:14:18Z
- Scope: checks: [/p/private-document-library], template: node-22

Last Verified At

2026-09-21T01:14:18Z

Formats

Next Actions

Browse the catalog index
- Action ID: browse-catalog
- Operation ID: catalog_index
- Method: GET
- Relative Path: /v1/catalog
- Requires Authentication: false
Search published recipes by intent, stack and constraints
- Action ID: search-recipes
- Operation ID: search_recipes
- Method: POST
- Relative Path: /v1/catalog/search
- Body: {"limit":5,"query":"Enforce private-file authorization for Hono"}
- Requires Authentication: false
- Requires Approval: false
Prepare a side-effect-free deployment plan for an authorized project
- Action ID: plan:page:guides:hono:private-file-access
- Operation ID: plan_deployment
- Method: POST
- Relative Path: /v1/catalog/plan
- Body: {"inputs":{},"projectId":"","recipeId":"page:guides:hono:private-file-access","recipeRevision":"r1"}
- Requires Authentication: true
- Requires Approval: false
Read the existing agent authentication setup
- Action ID: auth-setup
- Operation ID: existing_auth_setup
- Method: GET
- Relative Path: /mcp/setup
- Requires Authentication: false
- Requires Approval: false
Browse Hono
- Action ID: browse:stack:framework-hono
- Operation ID: browse_node
- Method: GET
- Relative Path: /v1/catalog/nodes/stack%3Aframework-hono
- Requires Authentication: false
- Requires Approval: false
Browse Connect app to storage
- Action ID: browse:intent:connect-app-to-storage
- Operation ID: browse_node
- Method: GET
- Relative Path: /v1/catalog/nodes/intent%3Aconnect-app-to-storage
- Requires Authentication: false
- Requires Approval: false
Browse Private document library
- Action ID: browse:pattern:private-document-library
- Operation ID: browse_node
- Method: GET
- Relative Path: /v1/catalog/nodes/pattern%3Aprivate-document-library
- Requires Authentication: false
- Requires Approval: false