How to access parameter from aws parameter store using function in lambda

Question

I'm trying to pull a parameter value from the Parameter Store using the following code:

 let ssm = new AWS.SecretsManager();
   emailParam = { Path: '/myPath/Service/DestinationEmail'};
   destinationEmail = ssm.getParametersByPath(emailParam, function(err, data){
      if(err){
         console.log(err, err.stack);
      } else {
         return data;
      }
        });
    }else { 
        destinationEmail = dev.destinationEmail;  
    }

I checked the version of the SDk which is running and the console logged out version 2.339.0 so I added this as an explicit reference in package.json dependencies "aws-sdk": "^2.339.0"

Whenever I deploy this lambda and perform a test of invoking the lambda I get the following exception:

TypeError: ssm.getParametersByPath is not a function at exports.handler 

Looking at the API documentation the method I have written looks (to me) to be correct but I continue to get this exception.

Any suggestions on how to pull the parameter value out of the store and use if it within the lambda?

Answer 1

You're using the incorrect service. There's AWS Secrets Manager and AWS System Manager Parameter Store.

You're creating a client for the former, but using the API for the latter. Try using the SSM client, I think that's what you're looking for.