Skip to main content
Preview
Preview Feature — This feature is currently in preview and under active development. APIs and functionality may change. We recommend testing thoroughly before using in production.

API Reference

Complete API reference for Ductape's graph database operations. This page provides a comprehensive overview of all available methods and their parameters.

For detailed guides and examples, see:

Install the SDK​

npm install @ductape/sdk@0.1.8

The SDK includes all graph database drivers out of the box.

Initialize the SDK​

import Ductape from '@ductape/sdk';

const ductape = new Ductape({
  accessKey: 'your-access-key',
});

Register a Graph Database​

await ductape.graph.create({
  name: 'Social Graph',
  tag: 'social-graph',
  type: 'neo4j',
  description: 'Stores user relationships',
  envs: [
    { slug: 'dev', connection_url: 'bolt://localhost:7687' },
    { slug: 'prd', connection_url: 'bolt://neo4j-prod:7687' },
  ],
});

Configuration Fields​

FieldTypeRequiredDescription
namestringYesDisplay name
tagstringYesUnique identifier
typestringYesneo4j, neptune, arangodb, or memgraph
descriptionstringNoDescription
envsarrayYesEnvironment configurations

Environment Config​

FieldTypeDescription
slugstringEnvironment (dev, staging, prd)
connection_urlstringConnection string
databasestringDatabase name (ArangoDB)
graphNamestringGraph name (ArangoDB)
regionstringAWS region (Neptune)

Connect to Graph Database​

await ductape.graph.connect({
  graph: 'social-graph',
});

Once connected, all subsequent operations use this connection automatically.

Node Operations​

Create Node​

const result = await ductape.graph.createNode({
  labels: ['Person'],
  properties: {
    name: 'Alice',
    email: 'alice@example.com',
    age: 30,
  },
});

console.log('Created node:', result.node.id);

Find Nodes​

const result = await ductape.graph.findNodes({
  labels: ['Person'],
  where: { age: { $GT: 25 } },
  limit: 10,
});

Find Node by ID​

const node = await ductape.graph.findNodeById('node-id');

Update Node​

const result = await ductape.graph.updateNode({
  id: 'node-id',
  properties: { age: 31 },
});

Delete Node​

await ductape.graph.deleteNode({
  id: 'node-id',
  detach: true, // Also delete connected relationships
});

Merge Node​

Insert or update based on match criteria:

const result = await ductape.graph.mergeNode({
  labels: ['Person'],
  matchProperties: { email: 'alice@example.com' },
  onCreate: { name: 'Alice', createdAt: new Date() },
  onMatch: { lastSeen: new Date() },
});

Relationship Operations​

Create Relationship​

const result = await ductape.graph.createRelationship({
  type: 'FRIENDS_WITH',
  startNodeId: aliceId,
  endNodeId: bobId,
  properties: { since: 2020 },
});

Find Relationships​

const result = await ductape.graph.findRelationships({
  type: 'FRIENDS_WITH',
  startNodeId: aliceId,
});

Update Relationship​

await ductape.graph.updateRelationship({
  id: 'relationship-id',
  properties: { closeness: 'high' },
});

Delete Relationship​

await ductape.graph.deleteRelationship({
  id: 'relationship-id',
});

Traversals & Paths​

Traverse Graph​

const result = await ductape.graph.traverse({
  startNodeId: aliceId,
  direction: 'OUTGOING', // OUTGOING, INCOMING, or BOTH
  relationshipTypes: ['FRIENDS_WITH'],
  maxDepth: 3,
});

result.paths.forEach(path => {
  console.log('Path:', path.nodes.map(n => n.properties.name));
});

Shortest Path​

const result = await ductape.graph.shortestPath({
  startNodeId: aliceId,
  endNodeId: charlieId,
  relationshipTypes: ['FRIENDS_WITH'],
});

if (result.path) {
  console.log('Distance:', result.path.length);
}

All Paths​

const result = await ductape.graph.allPaths({
  startNodeId: aliceId,
  endNodeId: charlieId,
  maxDepth: 5,
  limit: 10,
});

Get Neighborhood​

const result = await ductape.graph.getNeighborhood({
  nodeId: aliceId,
  depth: 2,
  direction: 'BOTH',
});

Aggregations​

Count Nodes​

const result = await ductape.graph.countNodes(['Person'], { status: 'active' });
console.log('Active persons:', result.count);

Count Relationships​

const result = await ductape.graph.countRelationships(['FRIENDS_WITH']);
console.log('Friendships:', result.count);

Graph Statistics​

const stats = await ductape.graph.getStatistics();
console.log('Total nodes:', stats.nodeCount);
console.log('Total relationships:', stats.relationshipCount);

Full-Text Search​

const result = await ductape.graph.fullTextSearch({
  indexName: 'person_names',
  query: 'alice',
  limit: 10,
});
const result = await ductape.graph.vectorSearch({
  indexName: 'embeddings',
  vector: [0.1, 0.2, ...],
  topK: 10,
});

Raw Queries​

Execute native queries for your database:

// Cypher (Neo4j, Memgraph)
const result = await ductape.graph.query(
  'MATCH (p:Person)-[:FRIENDS_WITH]->(f) WHERE p.name = $name RETURN f',
  { name: 'Alice' }
);

Schema Management​

Create Index​

await ductape.graph.createNodeIndex({
  name: 'idx_person_email',
  label: 'Person',
  properties: ['email'],
  unique: true,
});

Create Constraint​

await ductape.graph.createNodeConstraint({
  name: 'unique_person_email',
  label: 'Person',
  property: 'email',
  type: 'UNIQUE',
});

List Indexes​

const indexes = await ductape.graph.listIndexes();

Transactions​

const result = await ductape.graph.executeTransaction(async (transaction) => {
  const alice = await ductape.graph.createNode({
    labels: ['Person'],
    properties: { name: 'Alice' },
  }, transaction);

  const bob = await ductape.graph.createNode({
    labels: ['Person'],
    properties: { name: 'Bob' },
  }, transaction);

  await ductape.graph.createRelationship({
    type: 'FRIENDS_WITH',
    startNodeId: alice.node.id,
    endNodeId: bob.node.id,
  }, transaction);

  return { alice, bob };
});

Manual Transaction​

const transaction = await ductape.graph.beginTransaction();

try {
  await ductape.graph.createNode({ ... }, transaction);
  await ductape.graph.createRelationship({ ... }, transaction);
  await transaction.commit();
} catch (error) {
  await transaction.rollback();
  throw error;
}

Disconnect​

await ductape.graph.disconnect();

// Or disconnect all
await ductape.graph.disconnectAll();

Provider Reference​

Neo4j​

Connection URL:

bolt://hostname:7687
bolt+s://hostname:7687          # with TLS
bolt://user:pass@hostname:7687  # with credentials

Query Language: Cypher

CREATE (p:Person {name: 'Alice', age: 30})
MATCH (p:Person) WHERE p.age > 25 RETURN p
MATCH (a:Person), (b:Person) WHERE a.name = 'Alice' AND b.name = 'Bob'
CREATE (a)-[:FRIENDS_WITH {since: 2020}]->(b)

AWS Neptune​

Connection URL:

wss://cluster.region.neptune.amazonaws.com:8182/gremlin
https://cluster.region.neptune.amazonaws.com:8182/openCypher

Query Languages: Gremlin or openCypher

await ductape.graph.create({
  name: 'Neptune Graph',
  tag: 'neptune-graph',
  type: 'neptune',
  envs: [{
    slug: 'prd',
    connection_url: 'wss://cluster.us-east-1.neptune.amazonaws.com:8182/gremlin',
    region: 'us-east-1',
  }],
});

ArangoDB​

Connection URL:

http://hostname:8529
https://hostname:8529
http://user:pass@hostname:8529

Query Language: AQL

await ductape.graph.create({
  name: 'ArangoDB Graph',
  tag: 'arango-graph',
  type: 'arangodb',
  envs: [{
    slug: 'dev',
    connection_url: 'http://localhost:8529',
    database: 'myapp',
    graphName: 'social_graph',
  }],
});

Memgraph​

Connection URL:

bolt://hostname:7687
bolt+ssc://hostname:7687  # with TLS

Query Language: Cypher (Neo4j compatible)

Memgraph includes MAGE library with pre-built graph algorithms:

CALL pagerank.get() YIELD node, rank
CALL community_detection.get() YIELD node, community_id

Error Handling​

import { GraphError, GraphErrorType } from '@ductape/sdk';

try {
  await ductape.graph.createNode({ ... });
} catch (error) {
  if (error instanceof GraphError) {
    switch (error.type) {
      case GraphErrorType.CONNECTION_ERROR:
        console.error('Cannot connect to graph database');
        break;
      case GraphErrorType.CONSTRAINT_ERROR:
        console.error('Constraint violation');
        break;
      case GraphErrorType.QUERY_ERROR:
        console.error('Query failed:', error.message);
        break;
    }
  }
}