How to get Lambda functions configuration using async await?

Question

I want to get the configuration of a lambda function using the GetFunctionConfiguration API.

Currently the code I am using is based on callbacks but I want to transform it to use async await.

var params = {
  FunctionName: "my-function",
};

lambda.getFunctionConfiguration(params, function (err, data) {
  // Do Something
});

Answer 1

You can promisify your function with

const util = require('util');
const getFunctionConfiguration = util.promisify(lambda.getFunctionConfiguration);

and call it with

const data = await getFunctionConfiguration(params);

You can find more on promisify here: https://nodejs.org/dist/latest-v8.x/docs/api/util.html#util_util_promisify_original