node-promise-wrapper

Wrap promise to get both error & result in same line of code. Saves time & code. Useful for async functions only.

Usage: (without wrapper name)

var wrapper = require("node-promise-wrapper");
var {error, data} = await wrapper(promise);

• error: Holds any error returned by the promise.
• data: Holds any result returned by the promise.

Usage: (with wrapper name)

var wrapper = require("node-promise-wrapper");
var {error, result} = await wrapper("result", promise);

• error: Holds any error returned by the promise.
• result: Holds any result returned by the promise.
  result variable name must be same as wrapper name. Default is data.

Example:

var testPromise = new Promise(function(resolve, reject) {
  setTimeout(function() {
    if (Math.random() > 0.5) {
      resolve("success");
    } else {
      reject("error");
    }
  }, 2000); // wait for 2 seconds
});

(async function() {
  var wrapper = require("node-promise-wrapper");
  // testPromise can be any other promise like fs.read(); fs.write(); etc.
  var {error, result} = await wrapper("result", testPromise);
  console.log(error, result);
})();