Fork of https://github.com/oxigraph/oxigraph.git for the purpose of NextGraph project
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
5.0 KiB
89 lines
5.0 KiB
Oxigraph
|
|
========
|
|
|
|
[](https://github.com/Tpt/oxigraph/actions)
|
|
[](https://deps.rs/repo/github/Tpt/oxigraph)
|
|
|
|
|
|
Oxigraph is a work in progress graph database implementing the [SPARQL](https://www.w3.org/TR/sparql11-overview/) standard.
|
|
|
|
There is no released version yet.
|
|
|
|
Its goal is to provide a compliant, safe and fast graph database based on the [RocksDB](https://rocksdb.org/) key-value store.
|
|
It is written in Rust.
|
|
|
|
It is split into multiple parts:
|
|
* The `lib` directory contains the database written as a Rust library
|
|
* The `server` directory contains a stand-alone binary of a web server implementing the [SPARQL 1.1 Protocol](https://www.w3.org/TR/sparql11-protocol/).
|
|
* The `wikibase` directory contains a stand-alone binary of a web server able to synchronize with a [Wikibase instance](https://wikiba.se/).
|
|
|
|
Are currently implemented:
|
|
* [SPARQL 1.1 Query](https://www.w3.org/TR/sparql11-query/) except `FROM` and `FROM NAMED`.
|
|
* [Turtle](https://www.w3.org/TR/turtle/), [TriG](https://www.w3.org/TR/trig/), [N-Triples](https://www.w3.org/TR/n-triples/), [N-Quads](https://www.w3.org/TR/n-quads/) and [RDF XML](https://www.w3.org/TR/rdf-syntax-grammar/) RDF serialization formats for both data ingestion and retrieval using the [Rio library](https://github.com/Tpt/rio).
|
|
* [SPARQL Query Results XML Format](http://www.w3.org/TR/rdf-sparql-XMLres/) and [SPARQL Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/).
|
|
|
|
## Run the web server
|
|
|
|
### Build
|
|
You need to have [a recent stable version of Rust and Cargo installed](https://www.rust-lang.org/tools/install).
|
|
|
|
If it's done, executing `cargo build --release` in the root directory of this repository should compile the full server after having downloaded its dependencies.
|
|
It will create a fat binary in `target/release/oxigraph_server`.
|
|
|
|
### Usage
|
|
|
|
Run `./oxigraph_server` to start the server. It listen by default on `localhost:7878`.
|
|
|
|
The server provides an HTML UI with a form to execute SPARQL requests.
|
|
|
|
It provides the following routes:
|
|
* `/` allows to `POST` data to the server.
|
|
For example `curl -f -X POST -H 'Content-Type:application/n-triples' --data-binary "@MY_FILE.nt" http://localhost:7878/`
|
|
will add the N-Triples file MY_FILE.nt to the server repository. [Turtle](https://www.w3.org/TR/turtle/), [TriG](https://www.w3.org/TR/trig/), [N-Triples](https://www.w3.org/TR/n-triples/), [N-Quads](https://www.w3.org/TR/n-quads/) and [RDF XML](https://www.w3.org/TR/rdf-syntax-grammar/) are supported.
|
|
* `/query` allows to evaluate SPARQL queries against the server repository following the [SPARQL 1.1 Protocol](https://www.w3.org/TR/sparql11-protocol/#query-operation).
|
|
For example `curl -f -X POST -H 'Content-Type:application/sparql-query' --data 'SELECT * WHERE { ?s ?p ?o } LIMIT 10' http://localhost:7878/query`.
|
|
This route supports content negotiation and could return [Turtle](https://www.w3.org/TR/turtle/), [N-Triples](https://www.w3.org/TR/n-triples/), [RDF XML](https://www.w3.org/TR/rdf-syntax-grammar/), [SPARQL Query Results XML Format](http://www.w3.org/TR/rdf-sparql-XMLres/) and [SPARQL Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/).
|
|
|
|
|
|
Use `oxigraph_server --help` to see the possible options when starting the server.
|
|
|
|
|
|
## Run the web server for Wikibase
|
|
|
|
### Build
|
|
You need to have [a recent stable version of Rust and Cargo installed](https://www.rust-lang.org/tools/install).
|
|
|
|
If it's done, executing `cargo build --release` in the root directory of this repository should compile the full server after having downloaded its dependencies.
|
|
It will create a fat binary in `target/release/oxigraph_wikibase`.
|
|
|
|
### Usage
|
|
|
|
To start a server that is synchronized with [test.wikidata.org](https://test.wikidata.org) you should run:
|
|
```bash
|
|
./oxigraph_wikibase --mediawiki_api=https://test.wikidata.org/w/api.php --mediawiki_base_url=https://test.wikidata.org/wiki/ --namespaces=0,120 --file=test.wikidata
|
|
```
|
|
|
|
It creates a SPARQL endpoint listening to `localhost:7878/query` that could be queried just like Blazegraph.
|
|
|
|
The configuration parameters are:
|
|
* `mediawiki_api` URL of the MediaWiki API to use
|
|
* `mediawiki_base_url` Base URL of MediaWiki pages like `https://test.wikidata.org/wiki/` for test.wikidata.org or `http://localhost/w/index.php?title=` for "vanilla" installations.
|
|
* `namespaces` The ids of the Wikibase namespaces to synchronize with, separated by `,`.
|
|
* `file` Path of where Oxigraph should store its data.
|
|
|
|
|
|
## License
|
|
|
|
This project is licensed under either of
|
|
|
|
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
|
|
http://www.apache.org/licenses/LICENSE-2.0)
|
|
* MIT license ([LICENSE-MIT](LICENSE-MIT) or
|
|
http://opensource.org/licenses/MIT)
|
|
|
|
at your option.
|
|
|
|
|
|
### Contribution
|
|
|
|
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in Futures by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
|
|
|