atomic-server

Status: alpha, not ready for production usage. Can panic at runtime.

The easiest way to share Atomic Data on the web. Demo on atomicdata.dev

• No runtime dependencies, fast, runs on all platforms (including on your Raspberry Pi)
• Embedded HTTP / HTTPS / HTTP2.0 server
• Serialization to HTML, JSON, Linked Data (RDF/XML, N-Triples / Turtle / JSON-LD) and AD3

Powered by Rust, atomic_lib, actix-web, Sled and more.

Progress

• [x] Respond to GET request for individual resources
• [x] HTML serialization
• [x] JSON serialization
• [x] JSON-LD serialization
• [x] AD3 serialization
• [x] RDF (Turtle / N-Triples) serialization
• [x] Basic error handling
• [x] TPF endpoint
• [x] Homepage
• [x] Static asset support for .css / .ico / etc.
• [x] HTTPS (WIP, kind of working)
• [x] Content-type negotiation
• [x] Basic design / use CSS framework
• [x] Validation endpoint
• [x] Atomic Commits (#16, #24)
• [x] Eliminate all preventable runtime panics (most already done)
• [x] URL extension recognition (.json, .ad3, .nt, etc.)
• [x] Collections / dynamic resources #17
• [ ] Authentication #13
• [ ] Authorization model (implemented for write, not read)
• [ ] Be able to manage the AtomicData.dev website without git (cli integration, implement required endpoints) #6

Install from source

Install Cargo to build from source.

```sh git clone git@github.com:joepio/atomic.git cd atomic/server

Create a new .env using the template

cp default.env .env

Run the server. It creates a store in ~/.config/atomic/db by default

cargo run

Visit http://localhost:8080/test

```

Running from cargo

You can also install with cargo install atomic-server, but this binary will also require:

• the /templates directory
• the /static directory
• the .env from this repo, (if you need modifications).

Usage

Check out ./example_requests.http for various HTTP requests to the server.

Get individual resources

You can fetch individual items by sending a GET request to their URL.

```sh

Fetch as AD3 triples

curl -i -H "Accept: application/ad3-ndjson" http://127.0.0.1:8081/test

Fetch as JSON-LD

curl -i -H "Accept: application/ld+json" http://127.0.0.1:8081/test

Fetch as JSON

curl -i -H "Accept: application/json" http://127.0.0.1:8081/test

Fetch as Turtle / N3

curl -i -H "Accept: text/turtle" http://127.0.0.1:8081/test ```

Query the store with Triple Pattern Fragments

```sh

Fetch as AD3 triples

curl -i -H "Accept: application/ad3-ndjson" "http://127.0.0.1:8081/tpf?subject=&property=&value=test" ```

HTTPS Setup

You'll probably want to make your Atomic Data available through HTTPS. You can use the embedded HTTPS / TLS setup powered by LetsEncrypt, acme_lib and rustls. To setup HTTPS, we'll need to set some environment variables. Open .env and set:

env ATOMIC_EMAIL=youremail@example.com ATOMIC_DOMAIN=example.com

Run the server cargo run. Make sure the server is accessible at ATOMIC_DOMAIN at port 80, because Let's Encrypt will send an HTTP request to this server's /.well-known directory to check the keys. It will now initialize the certificate. Read the logs, watch for errors.

HTTPS certificates are automatically renewed when the server is restarted, and the certs are 4 weeks or older.

Testing

```sh

This also makes sure that cli and server work, plus it test the db feature

cargo test --all ```

Performance benchmarking

```sh

Install drill

cargo install drill drill -b benchmark.yml --stats ```