Connecting with the Aerospike Node.js Client

The Aerospike Nodejs client can connect and periodically ping nodes for cluster status.

To connect to the Aerospike cluster, you must:

• Import the module into your application.
• Configure a client instance.
• Connect to the cluster.

Import the Module

To enable the Aerospike Node.js client, import the module into your application:

const Aerospike = require('aerospike')

Creating a Client

Before making any database operation, you must configure a client object, and successfully connect to the database.

To create a client, initialize the client using a configuration object and specify the following options:

• user — The username to login to the Aerospike cluster (only available in security-feature clusters).
• password — The password for the username (only available in security-feature clusters).
• hosts — Specify an array of hosts to connect to. The client iterates over the list until it successfully connects with a server.
• log — Specify the log verbosity level and redirect log messages to a file.
• policies — Specify client default behavior.

This example shows how to connect to an Aerospike cluster with the default authentication method:

let client = Aerospike.client({
    hosts: [
        { addr: "127.0.0.1", port: 3000 }
    ],
    log: {
        level: aerospike.log.INFO
    }
})

This example shows how to connect to an Aerospike cluster with the PKI authentication method:

let client = Aerospike.client({
    hosts: [
        { addr: "127.0.0.1", port: 4333 }
    ],
    tls: {
      cafile: process.env.CAFILE,
      keyfile: process.env.KEYFILE,
      certfile: process.env.CERT,
    }
    authMode: Aerospike.auth.AUTH_PKI,
    log: {
        level: aerospike.log.INFO
    }
})

On successful client creation, you can connect and execute operations in the cluster.

Connecting to the Cluster

To connect to the Aerospike cluster:

client.connect(function (error) {
  if (error) {
    // handle failure
    console.log('Connection to Aerospike cluster failed!')
  } else {
    // handle success
    console.log('Connection to Aerospike cluster succeeded!')
  }
})

Your application is ready to execute database operations.