Promise.then().catch() vs. async, await, try, catch

async_await_try_catch.js

async function call1() {
  try {
    return await promise1;
  }
  catch (err) {
    console.warn("promise1 – Error: ", err);
  }
}

async function call2() {
  try {
    const res = await promise1;
    return res.body;
  }
  catch (err) {
    console.warn("promise1 – Error: ", err);
  }
}

Promise.all([call1(), call2()])
  .then([data, body] => {…}) 

then_catch.js

Promise.all([
  promise1
    .catch(err => console.warn("promise1 – Error: ", err)),
  promise2
    .then(res => res.body)
    .catch(err => console.warn("promise2 – Error: ", err))
]).then([data, body] => {…})