Quick Start

The Ultipa Go driver is the official library that allows you to interact with Ultipa from a Go application. It requires Go 1.13 or later.

Install the Driver

After initializing a local Go module, you can add the latest Ultipa Go driver as a dependency:

Bash
go get github.com/ultipa/ultipa-go-driver/v5@latest

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:

Go
package main

import (
	"log"

	"github.com/ultipa/ultipa-go-driver/v5/sdk"
	"github.com/ultipa/ultipa-go-driver/v5/sdk/configuration"
)

func main() {
	config := &configuration.UltipaConfig{
        // URI example: Hosts: []string{"xxxx.us-east-1.cloud.ultipa.com:60010"},
		Hosts:    []string{"10.xx.xx.xx:60010"},
		Username: "<username>",
		Password: "<password>",
	}

	driver, err := sdk.NewUltipaDriver(config)
	if err != nil {
		log.Fatalln("Failed to connect to Ultipa:", err)
	}

    // Tests the connection
	isSuccess, _ := driver.Test(nil)
	println("Connection succeeds:", isSuccess)
}

Output
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:

Go
package main

import (
	"fmt"
	"log"

	"github.com/ultipa/ultipa-go-driver/v5/sdk"
	"github.com/ultipa/ultipa-go-driver/v5/sdk/configuration"
)

func main() {
	config := &configuration.UltipaConfig{
        // URI example: Hosts: []string{"xxxx.us-east-1.cloud.ultipa.com:60010"},
		Hosts:    []string{"10.xx.xx.xx:60010"},
		Username: "<username>",
		Password: "<password>",
	}

	driver, err := sdk.NewUltipaDriver(config)
	if err != nil {
		log.Fatalln("Failed to connect to Ultipa:", err)
	}

    // Creates a new open graph named 'g1'
	response, _ := driver.Gql("CREATE GRAPH g1 ANY", nil)
	fmt.Println(response.Status.Code)
}

Output
SUCCESS

Insert Nodes and Edges

To insert nodes and edges into a graph:

Go
package main

import (
	"fmt"
	"log"

	"github.com/ultipa/ultipa-go-driver/v5/sdk"
	"github.com/ultipa/ultipa-go-driver/v5/sdk/configuration"
)

func main() {
	config := &configuration.UltipaConfig{
        // URI example: Hosts: []string{"xxxx.us-east-1.cloud.ultipa.com:60010"},
		Hosts:    []string{"10.xx.xx.xx:60010"},
		Username: "<username>",
		Password: "<password>",
		DefaultGraph: "g1", // Sets the default graph to 'g1'
	}

	driver, err := sdk.NewUltipaDriver(config)
	if err != nil {
		log.Fatalln("Failed to connect to Ultipa:", err)
	}

	// Inserts nodes and edges into graph the 'g1'
	response, _ := 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)`, nil)
	fmt.Println(response.Status.Code)
}

Output
SUCCESS

Retrieve Nodes

To retrieve nodes from a graph:

Go
package main

import (
	"encoding/json"
	"fmt"
	"log"

	"github.com/ultipa/ultipa-go-driver/v5/sdk"
	"github.com/ultipa/ultipa-go-driver/v5/sdk/configuration"
)

func main() {
	config := &configuration.UltipaConfig{
        // URI example: Hosts: []string{"xxxx.us-east-1.cloud.ultipa.com:60010"},
		Hosts:    []string{"10.xx.xx.xx:60010"},
		Username: "<username>",
		Password: "<password>",
		DefaultGraph: "amz", // Optional; sets the default graph as 'amz'
	}

	driver, err := sdk.NewUltipaDriver(config)
	if err != nil {
		log.Fatalln("Failed to connect to Ultipa:", err)
	}

	// Retrieves 3 User nodes from the graph 'g1'
	requestConfig := &configuration.RequestConfig{
		Graph: "g1", // Sets the graph for the specific request as 'g1'
	}
	response, _ := driver.Gql("MATCH (u:User) RETURN u LIMIT 3", requestConfig)
	nodes, _, _ := response.Alias("u").AsNodes()
	for _, node := range nodes {
		jsonData, err := json.MarshalIndent(node, "", "  ")
		if err != nil {
			fmt.Println("Error:", err)
			continue
		}
		fmt.Println(string(jsonData))
	}
}

Output
{
  "ID": "U4",
  "UUID": 6557243256474697731,
  "Schema": "User",
  "Values": {
    "Data": {
      "name": "mochaeach"
    }
  }
}
{
  "ID": "U2",
  "UUID": 7926337543195328514,
  "Schema": "User",
  "Values": {
    "Data": {
      "name": "Brainy"
    }
  }
}
{
  "ID": "U5",
  "UUID": 14771808976798482436,
  "Schema": "User",
  "Values": {
    "Data": {
      "name": "lionbower"
    }
  }
}

Process Query Results

The driver's Gql() method returns a Response 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 Nodes:

Go
// Retrieves 3 User nodes from the graph 'g1'
requestConfig := &configuration.RequestConfig{
  Graph: "g1", // Sets the graph for the specific request as 'g1'
}
response, _ := driver.Gql("MATCH (u:User) RETURN u LIMIT 3", requestConfig)
nodes, _, _ := response.Alias("u").AsNodes()
for _, node := range nodes {
  jsonData, err := json.MarshalIndent(node, "", "  ")
  if err != nil {
    fmt.Println("Error:", err)
    continue
  }
  fmt.Println(string(jsonData))
}

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 GraphSets:

Go
package main

import (
	"log"

	"github.com/ultipa/ultipa-go-driver/v5/sdk"
	"github.com/ultipa/ultipa-go-driver/v5/sdk/configuration"
)

func main() {
	config := &configuration.UltipaConfig{
        // URI example: Hosts: []string{"xxxx.us-east-1.cloud.ultipa.com:60010"},
		Hosts:    []string{"10.xx.xx.xx:60010"},
		Username: "<username>",
		Password: "<password>",
	}

	driver, err := sdk.NewUltipaDriver(config)
	if err != nil {
		log.Fatalln("Failed to connect to Ultipa:", err)
	}

	// Retrieves all graphs in the database
	graphs, _ := driver.ShowGraph(nil)
	for _, graph := range graphs {
		println(graph.Name)
	}
}

Output
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 Nodes:

Go
package main

import (
	"fmt"
	"log"

	"github.com/ultipa/ultipa-go-driver/v5/sdk"
	"github.com/ultipa/ultipa-go-driver/v5/sdk/configuration"
	"github.com/ultipa/ultipa-go-driver/v5/sdk/structs"
)

func main() {
	config := &configuration.UltipaConfig{
        // URI example: Hosts: []string{"xxxx.us-east-1.cloud.ultipa.com:60010"},
		Hosts:    []string{"10.xx.xx.xx:60010"},
		Username: "<username>",
		Password: "<password>",
	}

	driver, err := sdk.NewUltipaDriver(config)
	if err != nil {
		log.Fatalln("Failed to connect to Ultipa:", err)
	}

	// Inserts two User nodes into the graph 'g1'

	requestConfig := &configuration.RequestConfig{Graph: "g1"}
	insertRequestConfig := &configuration.InsertRequestConfig{RequestConfig: requestConfig}

	nodes := []*structs.Node{
		{
			ID: "U6",
			Values: &structs.Values{
				Data: map[string]interface{}{
					"name": "Alice",
					"age":  28,
				},
			},
		},
		{
			ID: "U7",
			Values: &structs.Values{
				Data: map[string]interface{}{
					"name": "Quars",
				},
			},
		},
	}

	response, _ := driver.InsertNodes("User", nodes, insertRequestConfig)
	fmt.Println(response.Status.Code)
}

Output
SUCCESS