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https://github.com/kba/jsonld-rapper
Create RDF from JSON-LD with rapper
https://github.com/kba/jsonld-rapper
Last synced: about 1 month ago
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Create RDF from JSON-LD with rapper
- Host: GitHub
- URL: https://github.com/kba/jsonld-rapper
- Owner: kba
- License: mit
- Created: 2015-03-04T12:15:00.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2018-01-03T10:23:00.000Z (over 6 years ago)
- Last Synced: 2024-08-01T12:20:01.588Z (about 2 months ago)
- Language: CoffeeScript
- Size: 55.7 KB
- Stars: 5
- Watchers: 4
- Forks: 3
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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- awesome-starred - kba/jsonld-rapper - Create RDF from JSON-LD with rapper (others)
README
jsonld-rapper
==============
Convert between RDF and JSON-LD using rapper
[](https://travis-ci.org/infolis/jsonld-rapper)
## Installation
This module requires the `rapper` utility, version **>=2.0.14** to be in `$PATH`.
If it isn't in the `$PATH`, override `rapperBinary`.
Based on https://github.com/ruby-rdf/rdf-raptor:
```
% [sudo] port install raptor # Mac OS X with MacPorts
% [sudo] fink install raptor-bin # Mac OS X with Fink
% brew install raptor # Mac OS X with Homebrew
% [sudo] apt-get install raptor2-utils # Ubuntu / Debian with apt-get
% [sudo] yum install raptor2 # Fedora / CentOS / RHEL
% [sudo] zypper install raptor # openSUSE
% [sudo] emerge raptor # Gentoo Linux
% [sudo] pacman -S raptor # Arch Linux
% [sudo] pkg_add -r raptor # FreeBSD
% [sudo] pkg_add raptor # OpenBSD / NetBSD
```
Install dependencies: `npm install`
Test: `npm test`
Generate docs in `apidocs`: `npm run docs`
## Example
```javascript
var JsonLD2RDF = require('jsonld-rapper')
var j2r = new JsonLD2RDF();
var jsonld1 = {'@id': 'http://example.org/foo', 'http://example.org/prop1': 'bar'};
var turtle1 = {'@prefix ex: .\n ex:foo ex:prop1 "bar" .'
j2r.convert(turtle1, 'turtle', 'jsonld', function (err, asJsonLD) {
// do something with asJsonLD, an object
});
j2r.convert(jsonld1, 'jsonld', 'rdfxml', function (err, asRdfxml) {
// do something with asRdfxml, a string
});
```
## API
### Exports
* `JsonLD2RDF`: Class with the `convert` method
### Options
* `rapperBinary`: Absolute path or $PATH-relative path to the `rapper(1)` binary
* `baseURI`: TODO
* `expandContext`: TODO
* `profile`: JSON-LD profile to use when outputting JSON-LD
* `jsonldToRDF`: Options passed to `jsonld.toRDF`. Defaults:
* `baseURI`: Instance's `baseURI`
* `expandContext`: Instance's `expandContext`
* `format`: 'application/nquads'. Since the jsonld module supports only nquads, don't change this.
* `jsonldFromRDF`: Options passed to `jsonld.fromRDF`. Defaults
* `format`: 'application/nquads'. Since the jsonld module supports only nquads, don't change this.
* `useRdfType`: false
* `useNativeTypes`: false
* `jsonldCompact`, `jsonldExpand`, `jsonldFlatten`: Options passed to jsonld's resp. function
### Convert
```javascript
var JsonLD2RDF = require('jsonld-rapper');
var j2r = new JsonLD2RDF();
j2r.convert(input, from, to, methodOpts, callback)
```
* `input`: string of RDF/JSON-LD or JSON-LD object
* `from`: One of the supported input media types or short names
* `to`: One of the supported output media types or short names
* `methodOpts` (**OPTIONAL**): Options to override the instance-wide options
* `callback`: Callback, gets passed `(err, converted)` where `err` is an error
object (including a `cause` field for errors from `rapper`) and `converted` is
the converted RDF/JSON-LD string/object.
### Constants
Properties of the JsonLD2RDF instance
* `SUPPORTED_INPUT_TYPE`: Supported input types used as the `from` argument
* `SUPPORTED_OUTPUT_TYPE`: Supported output types used as the `from` argument
* `JSONLD_PROFILE`: Supported JSON-LD profiles
```javascript
var JsonLD2RDF = require('jsonld-rapper');
var j2r = new JsonLD2RDF();
for (profile in j2r.JSONLD_PROFILE) {
console.log profile
}
// COMPACTED => 'http://www.w3.org/ns/json-ld#compacted'
// FLATTENED => 'http://www.w3.org/ns/json-ld#flattened'
// FLATTENED_EXPANDED => 'http://www.w3.org/ns/json-ld#flattened+expanded'
// EXPANDED => 'http://www.w3.org/ns/json-ld#expanded'
```
## Rights
This library is [licensed](./LICENSE) under the terms of the [MIT license](http://opensource.org/licenses/MIT).
Library | License
-------- | --------
[async](https://github.com/caolan/async) | [MIT](http://opensource.org/licenses/MIT)
[colors](https://github.com/Marak/colors.js) | [MIT](http://opensource.org/licenses/MIT)
[merge](https://github.com/yeikos/js.merge) | [MIT](http://opensource.org/licenses/MIT)
[jsonld](https://github.com/digitalbazaar/jsonld.js) | [BSD 3-Clause](http://opensource.org/licenses/BSD-3-Clause)
[n3](https://github.com/RubenVerborgh/N3.js) | [MIT](http://opensource.org/licenses/MIT)
[which](https://github.com/isaacs/node-which) | [ISC](http://opensource.org/licenses/ISC)
[which](https://github.com/infolis/jsonld-common-contexts) | [MIT](http://opensource.org/licenses/MIT)