Quick Start

The Ultipa Node.js driver is a JavaScript library that allows you to interact with Ultipa from any Node.js environment. It requires Node.js version 12.22.12 or later.

Install the Driver

You can install the latest package from npm registry:

npm install @ultipa-graph/ultipa-driver

Connect to Database

You need a running Ultipa database to use the driver. The easiest way to get an instance is via Ultipa Cloud (free trial available), or you can use an on-premises deployment if you already have one.

Creates a connection and tests the connection:

import { UltipaDriver } from "@ultipa-graph/ultipa-driver";
import type { ULTIPA } from "@ultipa-graph/ultipa-driver/dist/types/index.js";

let sdkUsage = async () => {
  const ultipaConfig: ULTIPA.UltipaConfig = {
    // URI example: hosts: ["xxxx.us-east-1.cloud.ultipa.com:60010"]
    hosts: ["10.xx.xx.xx:60010"],
    username: "<username>",
    password: "<password>"
  };

  const driver = new UltipaDriver(ultipaConfig);
  
  // Tests the connection
  const isSuccess = await driver.test();
  console.log(`Connection succeeds: ${isSuccess}`);
};

sdkUsage().catch(console.error);

Connection succeeds: true

More info on database connection →

Query the Database

GQL is the international standardized query language for graph databases. You can use the driver's gql() method to send GQL queries and fully operate the database. If you're new to GQL, check out the GQL Quick Start or the GQL documentation for a detailed orientation.

More info on querying the database →

Create a Graph

To create a new graph in the database:

import { UltipaDriver } from "@ultipa-graph/ultipa-driver";
import type { ULTIPA } from "@ultipa-graph/ultipa-driver/dist/types/index.js";

let sdkUsage = async () => {
  const ultipaConfig: ULTIPA.UltipaConfig = {
    hosts: ["10.xx.xx.xx:60010"],
    username: "<username>",
    password: "<password>"
  };

  const driver = new UltipaDriver(ultipaConfig);
  
  // Creates a new open graph named 'g1'
  let response = await driver.gql("CREATE GRAPH g1 ANY")
  console.log(response.status?.message)
};

sdkUsage().catch(console.error);

SUCCESS

Insert Nodes and Edges

To insert nodes and edges into a graph:

import { UltipaDriver } from "@ultipa-graph/ultipa-driver";
import type { ULTIPA } from "@ultipa-graph/ultipa-driver/dist/types/index.js";

async function sdkUsage() {
  const ultipaConfig: ULTIPA.UltipaConfig = {
    hosts: ["10.xx.xx.xx:60010"],
    username: "<username>",
    password: "<password>",
    defaultGraph: "g1" // Sets the default graph to 'g1'
  };

  const driver = new UltipaDriver(ultipaConfig);

  // Inserts nodes and edges into graph the 'g1'
  let response = await driver.gql(`INSERT 
    (u1:User {_id: 'U1', name: 'rowlock'}),
    (u2:User {_id: 'U2', name: 'Brainy'}),
    (u3:User {_id: 'U3', name: 'purplechalk'}),
    (u4:User {_id: 'U4', name: 'mochaeach'}),
    (u5:User {_id: 'U5', name: 'lionbower'}),
    (u1)-[:Follows {createdOn: DATE('2024-01-05')}]->(u2),
    (u4)-[:Follows {createdOn: DATE('2024-02-10')}]->(u2),
    (u2)-[:Follows {createdOn: DATE('2024-02-01')}]->(u3),
    (u3)-[:Follows {createdOn: DATE('2024-05-03')}]->(u5)`);
  console.log(response.status?.message);
}

sdkUsage().catch(console.error);

SUCCESS

Retrieve Nodes

To retrieve nodes from a graph:

import { UltipaDriver } from "@ultipa-graph/ultipa-driver";
import type { ULTIPA } from "@ultipa-graph/ultipa-driver/dist/types/index.js";
import { RequestConfig } from "@ultipa-graph/ultipa-driver/dist/types/types.js";

let sdkUsage = async () => {
  const ultipaConfig: ULTIPA.UltipaConfig = {
    hosts: ["10.xx.xx.xx:60010"],
    username: "<username>",
    password: "<password>",
    defaultGraph: "amz" // Optional; sets the default graph as 'amz'
  };

  const driver = new UltipaDriver(ultipaConfig);
  
  // Retrieves 3 User nodes from the graph 'g1'
  const requestConfig: RequestConfig = {
    graph: "g1" // Sets the graph for the specific request as 'g1'
  }; 
  let response = await driver.gql("MATCH (u:User) RETURN u LIMIT 3", requestConfig);
  const nodes = response.alias("u").asNodes();
  for (const node of nodes) {
    console.log(node)
  };
};

sdkUsage().catch(console.error);

Node {
  uuid: '6557243256474697731',
  id: 'U4',
  schema: 'User',
  values: { name: 'mochaeach', gender: "male" }
}
Node {
  uuid: '7926337543195328514',
  id: 'U2',
  schema: 'User',
  values: { name: 'Brainy', gender: "female"  }
}
Node {
  uuid: '14771808976798482436',
  id: 'U5',
  schema: 'User',
  values: { name: 'lionbower', gender: "male"  }
}

Process Query Results

The driver's gql() method returns a Response object containing the raw query results from the database and execution metadata. To use the query results in your application, you need to extract and convert them into a usable data structure.

The above node retrieval example demonstrates this by using the alias() method to extract the query results and the asNodes() method to convert them into a list of Node objects:

// Retrieves 3 User nodes from the graph 'g1'
const requestConfig: RequestConfig = {
  graph: "g1"
}; 
let response = await driver.gql("MATCH (u:User) RETURN u LIMIT 3", requestConfig);
const nodes = response.alias("u").asNodes();
for (const node of nodes) {
  console.log(node)
};

The conversion method you choose depends on the type of query results you receive, such as nodes, edges, paths, property values, etc. For a complete list of available conversion methods and examples, refer to here.

Convenience Methods

In addition to the gql() method for executing custom GQL queries, the driver provides a suite of convenience methods to simplify common database operations. These methods eliminate the need to write full queries for tasks in the following categories:

• Graph: Show, create, alter, and delete graphs in a database instance.
• Schema and Property: Define and modify node and edge schemas and their properties.
• Data Insertion: Insert nodes and edges into a graph efficiently.
• Query Acceleration: Manage indexes and full-text indexes to optimize query performance.
• HDC Graph and Algorithm: Manage HDC graphs and run algorithms on them.
• Process and Job: Monitor running processes and manage backend jobs.
• Access Control: Configure user privileges and policies (roles).
• Data Export: Export nodes and edges from a graph.

For example, the showGraph() retrieves all graphs in the database, it returns a list of GraphSet objects:

import { UltipaDriver } from "@ultipa-graph/ultipa-driver";
import type { ULTIPA } from "@ultipa-graph/ultipa-driver/dist/types/index.js";

let sdkUsage = async () => {
  const ultipaConfig: ULTIPA.UltipaConfig = {
    hosts: ["10.xx.xx.xx:60010"],
    username: "<username>",
    password: "<password>"
  };

  const driver = new UltipaDriver(ultipaConfig);
  
  // Retrieves all graphs in the database
  const graphs = await driver.showGraph();
  for (const graph of graphs) {
    console.log(graph.name)
  }
};

sdkUsage().catch(console.error);

g1
miniCircle
amz

For example, the insertNodes() method allows you to insert nodes into a graph by providing the target schema and a list of Node objects:

import { UltipaDriver } from "@ultipa-graph/ultipa-driver";
import type { ULTIPA } from "@ultipa-graph/ultipa-driver/dist/types/index.js";
import { InsertRequestConfig } from "@ultipa-graph/ultipa-driver/dist/types/types.js";

let sdkUsage = async () => {
  const ultipaConfig: ULTIPA.UltipaConfig = {
    hosts: ["10.xx.xx.xx:60010"],
    username: "<username>",
    password: "<password>"
  };

  const driver = new UltipaDriver(ultipaConfig);
  
  // Inserts two User nodes into the graph 'g1'

  const insertRequestConfig: InsertRequestConfig = {
    graph: "g1"
  };

  const node1 = {
    id: "U6",
    values: {
      name: "Alice",
      age: 28
    },
  };
  const node2 = {
    id: "U7",
    values: {
      name: "Quars"
    },
  };
  const nodes = [node1, node2]

  let response = await driver.insertNodes("User", nodes, insertRequestConfig);
  console.log(response.status?.message);
};

sdkUsage().catch(console.error);

SUCCESS