Introduction to Node Vault

Node Vault is a client module for HashiCorp’s Vault – a tool for securely accessing and storing secrets. It provides a simple and straightforward API for interacting with Vault’s HTTP API. By leveraging Node Vault, developers can ensure that sensitive information, such as API keys and passwords, are securely managed and accessed.

Installing Node Vault

 npm install node-vault 

Using Node Vault APIs

Here are several examples showcasing the rich set of functionalities offered by Node Vault:

Initialization

 const vault = require('node-vault')({
  apiVersion: 'v1', 
  endpoint: 'http://127.0.0.1:8200', 
  token: 'myroot'
}); 

Reading Secrets

 vault.read('secret/mySecret')
  .then((result) => {
    console.log(result)
  })
  .catch(console.error);

Writing Secrets

 vault.write('secret/mySecret', { value: 's3cr3tValu3' })
  .then(() => {
    console.log('Secret written successfully');
  })
  .catch(console.error);

Listing Secrets

 vault.list('secret')
  .then((res) => {
    console.log(res);
  })
  .catch(console.error);

Deleting Secrets

 vault.delete('secret/mySecret')
  .then(() => {
    console.log('Secret deleted successfully');
  })
  .catch(console.error);

Renewing Secret Leases

 vault.renew('sys/leases/renew', { lease_id: 'myLeaseId' })
  .then((result) => {
    console.log(result);
  })
  .catch(console.error);

Application Example

Below is a complete application example that leverages Node Vault to manage secrets securely.

 const vault = require('node-vault')({
  apiVersion: 'v1',
  endpoint: 'http://127.0.0.1:8200',
  token: 'myroot'
});
async function manageSecrets() {
  try {
    // Write a secret
    await vault.write('secret/myAppSecret', { value: 'superSecretValue' });
    console.log('Secret written');

    // Read the secret
    const result = await vault.read('secret/myAppSecret');
    console.log('Secret read:', result);

    // List all secrets
    const secretsList = await vault.list('secret');
    console.log('Secrets list:', secretsList);

    // Delete the secret
    await vault.delete('secret/myAppSecret');
    console.log('Secret deleted');
  } catch (error) {
    console.error('Error managing secrets:', error);
  }
}
manageSecrets(); 

By integrating Node Vault into your JavaScript applications, you are well-equipped to handle secret management in a secure and efficient manner.

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