node-aws-metadata

Library to fetch aws metadata for the application running on EC2 instances in AWS

Installation

This is a Node.js module available through the npm registry.

Before installing, download and install Node.js. Node.js 12 or higher is required.

npm install --save node-aws-metadata

The top-level metadata items can be fetched

Usage

const AWSMetaData = require('node-aws-metadata');

// To Get Instance Meta Data by a meta data category
const getInstanceData = async() =>{
    try{
        const _aws_metadata = new AWSMetaData();
        const metadata = await _aws_metadata.getInstanceMetaData('ami-id');
        console.log(metadata);
    }
    catch(err=>{
        console.log(err);
    })
    
}

// To Get Instance Avaliable Meta Data
const getInstanceAllMetaData = async() =>{
    try{
        const _aws_metadata = new AWSMetaData();
        const metadata = await _aws_metadata.getInstanceAvailableMetaData();
        console.log(metadata);
    }
    catch(err=>{
        console.log(err);
    })
    
}

Outputs

getInstanceMetaData('ami-id') :

{ 
    'ami-id': 'amazon-linux-image-id' 
}

getInstanceAvailableMetaData()

{
  'ami-id': '',
  'ami-launch-index': ,
  'ami-manifest-path': '',
  'hostname': '',
  'instance-action': '',
  'instance-id': '',
  'instance-type': 't2.micro',
  'local-hostname': '',
  'local-ipv4': '',
  'profile': '',
  'public-hostname': '',
  'public-ipv4': '',
  'placement/availability-zone': 'us-west-1',
  'placement/availability-zone-id': '',
  'placement/region': 'us-west-1'
}

License

ISC © NiteshVishwakarma896