asyncExample.js

const AWS = require('aws-sdk');

const client = new AWS.SecretsManager({});

// Call the AWS API and return a Promise
function getAwsSecret(secretName) {
  return client.getSecretValue({ SecretId: secretName }).promise();
}

// Create a async function to use the Promise
// Top level await is a proposal
async function getAwsSecretAsync (secretName) {
  var error;
  var response = await getAwsSecret(secretName).catch(err => (error = err));
  return [error, response];
}

// Call the async function and return NodeJS callback style
module.exports = function asyncExample () {
  var [error, secret] = getAwsSecretAsync('dev/MySecret/MyService');
  
  if (error) {
    // Trigger an error and halt
    console.error(error);
    return;
  }
  
  // Use the result
  console.debug(secret);
}

Very helpful indeed! And from it, I created:

const config = require('config');
const AWS = require('aws-sdk');

// These are variables from my config file :)
const endpoint = config.get('AWS.endpoint');
const region = config.get('AWS.region');
const secretName = config.get('secretName');

const secretsManager = new AWS.SecretsManager({
  endpoint,
  region,
});
exports.handler = async (event, context) => {
  try {
    const data = await secretsManager.getSecretValue({
      SecretId: secretName,
    }).promise();

    if (data) {
      if (data.SecretString) {
        const secret = data.SecretString;
        const parsedSecret = JSON.parse(secret);
        return {
          secrets: parsedSecret,
        };
      }

      const binarySecretData = data.SecretBinary;
      return binarySecretData;
    }
  } catch (error) {
    console.log('Error retrieving secrets');
    console.log(error);
  }
};

You helped me finish up a task I've been on for over a week. Thank you 👍

Great!! Thanks a lot!!!

Thank you, this has been very helpful 👍

You're welcome. Glad to have helped!

Awesome bro!!

You Sir, are a legend!

Many thanks, Harrisonkamau.

Thank you so much @Harrisonkamau . your code solved my task which i was trying to accomplish since last two weeks. You Sir, are a legend. :)

You're welcome guys ;)

Useful, thanks! the , I was missing the .promise()

I get this error with serverless framework:

Promise { <pending > }

with:

const AWS = require('aws-sdk');

AWS.config.logger = console;

const client = new AWS.SecretsManager({
    region: "ap-southeast-2"
});

function getAwsSecret(secretName) {
  return client.getSecretValue({ SecretId: secretName }).promise();
}

async function getAwsSecretAsync (secretName) {
  var error;
  var response = await getAwsSecret(secretName);
  return response;
}

module.exports.notify = function asyncExample () {
  var secret = getAwsSecretAsync('mysecret');
  
console.debug(secret);
}

const secretsManager = new AWS.SecretsManager({
  endpoint,
  region,
});

Thanks! It worked like a charm for my Node.10.x lambda

I get this error with serverless framework:

Promise { <pending > }

with:

const AWS = require('aws-sdk');

AWS.config.logger = console;

const client = new AWS.SecretsManager({
    region: "ap-southeast-2"
});

function getAwsSecret(secretName) {
  return client.getSecretValue({ SecretId: secretName }).promise();
}

async function getAwsSecretAsync (secretName) {
  var error;
  var response = await getAwsSecret(secretName);
  return response;
}

module.exports.notify = function asyncExample () {
  var secret = getAwsSecretAsync('mysecret');
  
console.debug(secret);
}

same here

const AWS = require('aws-sdk');

AWS.config.logger = console;

const client = new AWS.SecretsManager({
    region: 'ap-southeast-2',
});

function getAwsSecret(secretName) {
  return client.getSecretValue({ SecretId: secretName }).promise();
}

async function getAwsSecretAsync (secretName) {
  try {
    const response = await getAwsSecret(secretName);
    return response;
  } catch (error) {
    console.error('Error occurred while retrieving AWS secret');
    console.error(error);
  }
}

module.exports.notify = async function asyncExample () {
  const secret = await getAwsSecretAsync('mysecret');
  console.debug(secret);
}

I think you need to add an await to getAwsSecretAsync('mysecret'); to get the resolved Promise value

@Harrisonkamau still having the same issue with the promised value even with await :(

Hi @dc-currenxie, you can try this one. Hope this help.

async secretManager(secretName) {
    try {
      const data = await client.getSecretValue({
        SecretId: secretName
      }).promise();
      if (data) {
        if (data.SecretString) {
          const secret = data.SecretString;
          const parsedSecret = JSON.parse(secret);
          return {
            data: parsedSecret,
            error: null
          };;
        }
        const binarySecretData = data.SecretBinary;
        return {
          data: binarySecretData,
          error: null
        };
      }
    } catch (error) {
      return {
        data: null,
        error: error
      };
    }
  }

@ToungMartin @dc-currenxie

Sorry to hear. Normally, a Promise returns Promise<Pending> if there's no await so there no way to access the resolved value.

Are you able to send me a formatted (using markdown) code that you're running and how you're calling the functions?

const AWS = require('aws-sdk');

const client = new AWS.SecretsManager({});

// Call the AWS API and return a Promise
function getAwsSecret(secretName) {
  return client.getSecretValue({ SecretId: secretName }).promise();
}

// Create a async function to use the Promise
// Top level await is a proposal
async function getAwsSecretAsync (secretName) {
  var error;
  var response = await getAwsSecret(secretName).catch(err => (error = err));
  return [error, response];
}

// Call the async function and return NodeJS callback style
module.exports = function asyncExample () {
  var [error, secret] = getAwsSecretAsync('dev/MySecret/MyService');
  
  if (error) {
    // Trigger an error and halt
    console.error(error);
    return;
  }
  
  // Use the result
  console.debug(secret);
}

This might be a dumb question but how do you then import and use this from elsewhere?

const { asyncExample } = require('./foobar');

module.exports.createStore = () => {
  // console.log(asyncExample())
};

This code works :

const clientsecrets = new SecretsManager( { region: 'eu-west-3' } );

  const getMySecret = async ( SecretId ) =>
  {
    const s = await clientsecrets.getSecretValue( { SecretId } ).promise();
    return s.SecretString;
  };

  const secret = await getMySecret( 'STRIPE_PUBLISHABLE_TEST_KEY' );
  console.log( 'secret : ', secret );

@rudyhadoux That'll work! You'll have to watch out for SecretString not being found on s if the result of clientsecrets.getSecretValue isn't perfect (rejected).

I don't understand your message. The only thing I can say is I tested this code today within a Typescript AWS Lamba and it works.
If it works once, it always works in the same type of environment.

s could be null or undefined if clientsecrets.getSecretValue takes too long or something happens on AWS servers.

This code works :

const clientsecrets = new SecretsManager( { region: 'eu-west-3' } );

  const getMySecret = async ( SecretId ) =>
  {
    const s = await clientsecrets.getSecretValue( { SecretId } ).promise();
    return s.SecretString;
  };

  const secret = await getMySecret( 'STRIPE_PUBLISHABLE_TEST_KEY' );
  console.log( 'secret : ', secret );

I'm getting this error
SyntaxError: await is only valid in async functions and the top level bodies of modules

This code works :

const clientsecrets = new SecretsManager( { region: 'eu-west-3' } );

  const getMySecret = async ( SecretId ) =>
  {
    const s = await clientsecrets.getSecretValue( { SecretId } ).promise();
    return s.SecretString;
  };

  const secret = await getMySecret( 'STRIPE_PUBLISHABLE_TEST_KEY' );
  console.log( 'secret : ', secret );

I'm getting this error SyntaxError: await is only valid in async functions and the top-level bodies of modules

const secret = await getMySecret( 'STRIPE_PUBLISHABLE_TEST_KEY' );
console.log( 'secret : ', secret );

This block of code needs to be wrapped in an async function. Node.js doesn't, yet, natively support calling await outside of an async unlike Deno.

To fix your issue, you can do this:

// Either
// using an IIFE (Immediately-invoke Function Expression)

(async () => {
  const secret = await getMySecret( 'STRIPE_PUBLISHABLE_TEST_KEY' );
  console.log( 'secret : ', secret );
})();

// or just use a Promise expression
getMySecret
  .then((secret) => console.log( 'secret : ', secret ))
  .catch((error) => console.error(error));

Top level async/await is now available in Node.js LTS (v16.15.0 as of now).