Hi Everyone,
I have just released
LevelGraph<https://github.com/mcollina/node-levelgraph>a tiny graph
database on top of LevelUp.
It supports getting/adding/updating/deleting the triples as you would
expect.
Moreover, it also supports joins:
db.put([{
subject: "matteo",
predicate: "friend",
object: "daniele"
}, {
subject: "daniele",
predicate: "friend",
object: "matteo"
}, {
subject: "daniele",
predicate: "friend",
object: "marco"
}, {
subject: "lucio",
predicate: "friend",
object: "matteo"
}, {
subject: "lucio",
predicate: "friend",
object: "marco"
}, {
subject: "marco",
predicate: "friend",
object: "davide"
}], function () {
db.join([{
subject: "matteo",
predicate: "friend",
object: db.v("x")
}, {
subject: db.v("x"),
predicate: "friend",
object: db.v("y")
}, {
subject: db.v("y"),
predicate: "friend",
object: "davide"
}], function(err, results) {
// this will print "[{ x: 'daniele', y: 'marco' }]"
console.log(results);
});
});
I am eager to get some real feedbacks, and any criticism is welcome.
Cheers,
Matteo
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