better-async

Useful package to work with promises.

BetterPromise class

This class has 2 utility method:

• objectAll
• objectAllSettled

BetterPromise.objectAll()

Same usage of Promise.all method (MDN Documentation), but it accept a Record<string, Promise<T>> in input and return a Record<string, T>.

Usage example:

• case with standard Promise.all

const responses = await Promise.all([
    externalApiRequest1(),
    externalApiRequest2(),
    timeConsumingProcess(),
]);

console.log(responses[0]); // result of external api request 1
console.log(responses[1]); // result of external api request 2
console.log(responses[2]); // result of time consuming process

• case with BetterPromise.objectAll

const responses = await BetterPromise.objectAll({
    extApi1: externalApiRequest1(),
    extApi2: externalApiRequest2(),
    process: timeConsumingProcess(),
});

//as you can see, the code is more clear in this way. You don't need to remember which thing are in which position
console.log(responses.extApi1); // result of external api request 1
console.log(responses.extApi2); // result of external api request 2
console.log(responses.process); // result of time consuming process

BetterPromise.objectAllSettled()

Same usage of Promise.allSettled method (MDN Documentation), but it accept a Record<string, Promise<T>> in input and return a Record<string, PromiseSettledResult<T>>.

Usage example:

• case with standard Promise.allSettled

const responses = await Promise.allSettled([
    externalApiRequest1(),
    externalApiRequest2(),
    timeConsumingProcess(),
]);

console.log(responses[0].status); // status of external api request 1
console.log(responses[1].status); // status of external api request 2
console.log(responses[2].status); // status of time consuming process

• case with BetterPromise.objectAllSettled

const responses = await BetterPromise.objectAllSettled({
    extApi1: externalApiRequest1(),
    extApi2: externalApiRequest2(),
    process: timeConsumingProcess(),
});

//as you can see, the code is more clear in this way. You don't need to remember which thing are in which position
console.log(responses.extApi1.status); // status of external api request 1
console.log(responses.extApi2.status); // status of external api request 2
console.log(responses.process.status); // status of time consuming process