Examples

Quick Start - Social Graph

Build a simple social network with follows relationships using CogDB.

Learn how to create a basic social graph and query relationships.

Creating the Graph

from cog.torque import Graph

g = Graph("social")
g.put("alice", "follows", "bob")
g.put("bob", "follows", "charlie")
g.put("alice", "follows", "charlie")

Query Outgoing Edges

Find who Alice follows using out():

# Who does Alice follow?
g.v("alice").out("follows").all()
# {'result': [{'id': 'bob'}, {'id': 'charlie'}]}

Query Incoming Edges

Find who follows Charlie using inc():

# Who follows Charlie?
g.v("charlie").inc("follows").all()
# {'result': [{'id': 'alice'}, {'id': 'bob'}]}

Explanation

g.v("alice") - Start at the vertex "alice"
.out("follows") - Follow outgoing "follows" edges
.inc("follows") - Follow incoming "follows" edges
.all() - Return all matching results

Overview

Learn CogDB through practical examples - graph traversal, bulk loading, semantic filtering and more.

Batch Insert

Efficiently load multiple edges at once using put_batch.

On this page

Creating the Graph Query Outgoing Edges Query Incoming Edges Explanation