Goblin OGM

Goblin OGM on top of TinkerPop 3

Goblin adds a powerful OGM on top of Tinkerpop 3.

Adding a Vertex

from goblin import Goblin, element, properties
# Object representing a Person vertex
class Person(element.Vertex):
    __label__ = 'person'
    name = properties.Property(properties.String)
    age = properties.Property(properties.Integer)
# Create a database session
app = Goblin.open(
            event_loop,
            hosts=['localhost'],
            port=8182)
session = await app.session()
# create an Object to represent Jon
jon = Person()
jon.name = 'jonathan'
jon.age = 38
# Create the Vertex for Jon in the DB
session.save(jon)
# Close the connection
await app.close()

For Developers

We introspect your Goblin models and generate gremlin) traversals so you can stop building repetitive CRUD APIs and focus on building your products.

Set property defaults and cardinality.

from gremlin_python.process.traversal import Cardinality
class Person(goblin.Vertex):
    name = goblin.Property(goblin.String, default='John Doe')
    nicknames = goblin.VertexProperty(
        goblin.String, card=Cardinality.list_)
david = Person()
david.nicknames = ['Jeff', 'Freemo']

Features

GraphDB OGM

Build Graph Database applications faster with less code

Asynchronous IO

Native Python support for asynchronous programing including coroutines, iterators, and context managers as specified in PEP 492

Gremlin Language Varient (GLV)

Run gremlin traversals directly in Python

Enforce Immutability

Configure Vertex and Edges to be immutable after creation

Property Cardinality

Properties can be singular objects or sets and lists.

Metaproperties

Associate metadata with properties.

Open source