This is your captain speaking
please put your phone in airplane mode

Olivier Leplus

@olivierleplus

—Pilote

@olivierleplus

bit.ly/botfuel-sdk

https://github.com/tagazok/pwa-backgroundsync-idb-demo

Let's have more fun.

LIVE CODING TIME !

client.js

sw.js

Internet

This is you

local DB

save image to local DB

trigger sync event
Retrieve from DB
upload to the internet

IndexedDb

This is a tiny library that mirrors IndexedDB, but replaces the weird IDBRequest objects with promises, plus a couple of other small changes.

— Jake Archibald

https://github.com/jakearchibald/idb

Indexed Database API

async/await

Promise-based implementation with the advantage of the synchronous-looking generator style.

— Nicolás Bevacqua

https://ponyfoo.com/articles/understanding-javascript-async-await

function getFirstUser() {
    return getUsers().then(function(users) {
        return users[0].name;
    });
}
getFirstUser().then(user => {
    console.log(user);
}

async function getFirstUser() {
    const users = await getUsers();
    return users[0].name;
}

const user = getFirstUser();

const a = await getA();
const b = await getB();
const c = await getC();

@olivierleplus

Thanks.

This is your captain speaking please put your phone in airplane mode

This is your captain speaking
please put your phone in airplane mode