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Using "return" in Async Google Cloud Functions

I am somewhat new to coding and recently created this script in order to pull data from Zoom and push it to Google Drive via API. I am trying to push this to a Google Cloud Function, but when running it in a Cloud Function and console logging each step in the process, it seems like the uploadFile function, specifically the drive.files.create method, is being skipped. Every other step is being console logged, but neither the err or res is being logged after the drive.files.create method. Google Cloud Functions does not show errors, instead it shows OK and that the function took 1500ms to execute. It works fine on my local machine, I am only having issues in Cloud Functions. Any suggestions on how to get this to act right would be super helpful. Thank you!
const axios = require("axios");
require("dotenv").config();
const stream = require("stream");
const request = require("request");
const { google } = require("googleapis");
const KEYFILEPATH = "./credentials.json";
const SCOPES = ["https://www.googleapis.com/auth/drive"];
const auth = new google.auth.GoogleAuth({
keyFile: KEYFILEPATH,
scopes: SCOPES,
});
let today = new Date().toISOString();
let zoomAccessToken;
let zoomDownloadUrl;
///////////////////////////////////////////////////////////////// Searching for latest Town Hall recording in Google.
const searchFile = async (auth) => {
const service = google.drive({ version: "v3", auth });
const files = [];
try {
const res = await service.files.list({
corpora: "drive",
includeItemsFromAllDrives: true,
supportsAllDrives: true,
driveId: "XXXXXXXXXXXXXXXX",
q: '"XXXXXXXXXXXXXXX" in parents',
fields: "nextPageToken, files(id, name)",
spaces: "drive",
});
Array.prototype.push.apply(files, res.files);
const filesArray = res.data.files;
const filesName = filesArray.map((x) => x.name).sort().reverse()[0];
console.log(filesName);
return filesName;
} catch (err) {
throw err;
}
};
///////////////////////////////////////////////////////////////// Get Zoom OAuth access token.
const getAccessToken = async () => {
return axios({
method: "post",
url: `https://zoom.us/oauth/token?grant_type=account_credentials&account_id=${process.env.ZOOM_ACCOUNT_ID}`,
headers: {
Authorization: "Basic" +new Buffer.from(process.env.ZOOM_CLIENT_ID + ":" + process.env.ZOOM_CLIENT_SECRET).toString("base64"),
},
});
};
///////////////////////////////////////////////////////////////// Get the latest Town Hall recording's data.
const getRecordingData = async () => {
const token = await getAccessToken();
zoomAccessToken = await token.data.access_token;
return axios({
method: "get",
url: "https://api.zoom.us/v2/meetings/XXXXXXXXX/recordings",
headers: {
"Content-Type": "application/json",
Authorization: `Bearer ${zoomAccessToken}`,
},
});
};
///////////////////////////////////////////////////////////////// Get the latest Town Hall recording's date.
const getRecordingDate = async () => {
const recording = await getRecordingData();
const lastRecordingDate = await recording.data.start_time;
const recordingDateFormatted = `${lastRecordingDate.substring(0,4)}.${lastRecordingDate.substring(5, 7)}.${lastRecordingDate.substring(8,10)} - Town Hall.mp4`;
return recordingDateFormatted;
};
///////////////////////////////////////////////////////////////// Get the latest Town Hall recording's download link.
const zoomDownloadLink = async () => {
const recording = await getRecordingData();
zoomDownloadUrl = `${recording.data.recording_files[0].download_url}?access_token=${zoomAccessToken}`;
return zoomDownloadUrl;
};
///////////////////////////////////////////////////////////////// Upload data from latest Town Hall recording's download link to Google Drive.
const uploadFile = async (auth) => {
const buffer = await zoomDownloadLink();
const bs = new stream.PassThrough();
request(buffer).pipe(bs);
const drive = google.drive({ version: "v3", auth });
var fileMetadata = {
name: `${today.substring(0, 4)}.${today.substring(5, 7)}.${today.substring(8,10)} - Town Hall.mp4`,
parents: ["XXXXXXXXXXXXXXXXX"],
};
var media = {
mimeType: "video/mp4",
body: bs,
};
drive.files.create(
{
resource: fileMetadata,
media: media,
fields: "id",
uploadType: "resumable",
supportsAllDrives: true,
},
function (err, res) {
if (err) {
console.log(err);
} else {
console.log("File Id: ", res.data.id);
}
}
);
};
///////////////////////////////////////////////////////////////// Compares Town Hall files in Google Drive and Zoom. If different, run uploadFile function.
exports.townHall = async () => {
const townHallFile = await searchFile(auth);
const lastRecordingDate = await getRecordingDate();
if (townHallFile != lastRecordingDate) {
await uploadFile(auth);
} else {
console.log("No Recording Today");
}
};

As you are calling an API inside a cloud function which is an async function but does not have a return statement, it will only execute the function but doesn't wait for the response, because the drive.files.create call is running.
So to fix that just need to await the result of the API. Just add
return await statement on the API call
like:
const uploadFile = async (auth) => {
const buffer = await zoomDownloadLink();
const bs = new stream.PassThrough();
request(buffer).pipe(bs);
const drive = google.drive({ version: "v3", auth });
var fileMetadata = {
name: `${today.substring(0, 4)}.${today.substring(5, 7)}.${today.substring(8,10)} - Town Hall.mp4`,
parents: ["XXXXXXXXXXXXXXXXX"],
};
var media = {
mimeType: "video/mp4",
body: bs,
};
return await drive.files.create(
{
resource: fileMetadata,
media: media,
fields: "id",
uploadType: "resumable",
supportsAllDrives: true,
},
function (err, res) {
if (err) {
console.log(err);
} else {
console.log("File Id: ", res.data.id);
}
}
);
};
Also, something important when you are calling APIs inside cloud functions is the time out. Check on your CF time out is enough to wait for the API call response.
Also, you can use the Promise function to force wait for the response:
const result = uploadFile(aut);
const _response = await Promise.all(result);

Discord.js v13 REST API Guide Cat and Urban Issues

So i tried following the https://discordjs.guide/additional-info/rest-api.html guide before making my own. But I can't get either to work.
Firstly with /cat it crashes and the console returns with:
SyntaxError: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at getJSONResponse (BOTLOCATION\index.js:77:14)
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async Client.<anonymous> (BOTLOCATION\index.js:90:20)
And /urban works but no matter what term I enter it returns with NULL.
Here is the code, its nearly identical from the guides apart from the added SlashCommandBuilder and REST.
const { request } = require('undici');
const clientId = 'CLIENTID_HERE';
const guildId = 'GUILDID_HERE';
const { SlashCommandBuilder } = require('#discordjs/builders');
const { REST } = require('#discordjs/rest');
const { Routes } = require('discord-api-types/v9');
const commands = [
new SlashCommandBuilder().setName('cat').setDescription('Cat thing idk'),
new SlashCommandBuilder().setName('urban').setDescription('Urban Dictionary Thing'),
]
.map(command => command.toJSON());
const rest = new REST({ version: '9' }).setToken("TOKEN_HERE");
rest.put(Routes.applicationGuildCommands(clientId, guildId), { body: commands })
//rest.put(Routes.applicationGuildCommands(clientId), { body: commands })
.then(() => console.log('Successfully registered application commands.'))
.catch(console.error);
const trim = (str, max) => (str.length > max ? `${str.slice(0, max - 3)}...` : str);
async function getJSONResponse(body) {
let fullBody = '';
for await (const data of body) {
fullBody += data.toString();
}
return JSON.parse(fullBody);
}
client.on('interactionCreate', async interaction => {
if (!interaction.isCommand()) return;
const { commandName } = interaction;
await interaction.deferReply();
if (commandName === 'cat') {
const catResult = await request('https://aws.random.cat/meow');
const { file } = await getJSONResponse(catResult.body);
interaction.reply({ files: [{ attachment: file, name: 'cat.png' }] });
} else if (commandName === 'urban') {
const term = interaction.options.getString('term');
const query = new URLSearchParams({ term });
const dictResult = await request(`https://api.urbandictionary.com/v0/define?${query}`);
const { list } = await getJSONResponse(dictResult.body);
if (!list.length) {
return interaction.editReply(`No results found for **${term}**.`);
}
const [answer] = list;
const embed = new MessageEmbed()
.setColor('#EFFF00')
.setTitle(answer.word)
.setURL(answer.permalink)
.addFields(
{ name: 'Definition', value: trim(answer.definition, 1024) },
{ name: 'Example', value: trim(answer.example, 1024) },
{
name: 'Rating',
value: `${answer.thumbs_up} thumbs up. ${answer.thumbs_down} thumbs down.`,
},
);
interaction.editReply({ embeds: [embed] });
}
});

So for the cat command since there is a deferReply first we need to use editReply since deferReply counts as the first/initial reply.
await interaction.deferReply();
const catResult = await request('https://aws.random.cat/meow').catch((err) => { console.log(err); });;
const { file } = await getJSONResponse(catResult.body).catch((err) => { console.log(err); });
return await interaction.editReply({ files: [{ attachment: file, name: 'cat.png' }] });
I also added a .catch to the end of each await, this was just for testing however I recommend it.
Now with the urban command, the reason it is using null is since you don't have the string option's text. We can check for it by adding an if statement.
await interaction.deferReply();
const term = interaction.options.getString('term');
if (!term) return await interaction.editReply('Please provide a term.'); // We need to add this check to see if the user provided the term option or not.
const query = new URLSearchParams({ term });
const dictResult = await request(`https://api.urbandictionary.com/v0/define?${query}`);
const { list } = await getJSONResponse(dictResult.body);
if (!list.length) {
return interaction.editReply(`No results found for **${term}**.`);
}
const [answer] = list;
const embed = new MessageEmbed()
.setColor('#EFFF00')
.setTitle(answer.word)
.setURL(answer.permalink)
.addFields(
{ name: 'Definition', value: trim(answer.definition, 1024) },
{ name: 'Example', value: trim(answer.example, 1024) },
{
name: 'Rating',
value: `${answer.thumbs_up} thumbs up. ${answer.thumbs_down} thumbs down.`,
},
);
return await interaction.editReply({ embeds: [embed] });
IMPORTANT: When you are building your slash command you are not setting a string option. In the commands array, when creating the second slash command called urban we will add the support for the string option there. (An example using the string option, discord.js guide all command options)
This is how we can do this:
const commands = [
new SlashCommandBuilder().setName('cat')
.setDescription('Cat thing idk'),
new SlashCommandBuilder()
.setName('urban')
.setDescription('Urban Dictionary Thing')
.addStringOption((option) => option.setName('term').setDescription('term')) // We first add the string option then set the name to 'term' which is what the code calls for and then the description.
].map((command) => command.toJSON());
If you would like to make the term input required, add .setRequired(true) which will not allow the command to be ran without entering the term to search.
Once you do that you should be all good! Tested the code and it's working once that's fixed

How to call balanceOf() method for non published ABI

I'm trying to call balanceOf() method on a specific Tron contract (TYukBQZ2XXCcRCReAUguyXncCWNY9CEiDQ), but what I get is Failed to execute . If I do not provide the parameters I get Invalid argument count provided - meaning at some level it works for this contract.
What is interesting it works well on contracts other than the ones created with JustSwap Factory contract eg. https://tronscan.io/#/contract/TYukBQZ2XXCcRCReAUguyXncCWNY9CEiDQ/code .
The code includes the standard TRC20 methods - including balanceOf() - I'm stuck and tried all that's possible form my side, but let's just say I'm not fluent in tronweb api.
My code:
export const getDataToken = async (contractAddress, account, account2) => {
try {
const instance = await window.tronWeb.contract(
[
{
constant: true,
inputs: [{ name: "owner", type: "address" }],
name: "balanceOf",
outputs: [{ name: "", type: "uint256" }],
payable: false,
stateMutability: "view",
type: "function"
}
],
contractAddress
);
console.log(instance);
if (instance.balanceOf) {
console.log("dadadad if");
const tokenBalance = await instance.balanceOf(account).call();
const tokenBalance2 = await instance.balanceOf(account2).call();
return {
tokenBalance: (tokenBalance / Math.pow(10, 18)).toString(),
tokenContract: instance,
tokenBalance2: (tokenBalance2 / Math.pow(10, 18)).toString()
};
}
} catch (message) {
console.log("error getData :" + message);
}
};
const { tokenBalance, tokenContract, tokenBalance2 } = getDataToken(
"TYukBQZ2XXCcRCReAUguyXncCWNY9CEiDQ",
"TL4HzzxGMc1LMfs3XCi4yTJikaBVubz5y4",
"TTFp171XD4JdUB33sDq2ydXJyUEEZjNhLD"
);

This function can help (example for getting JustSwap pair price):
async function takePrice(contractAddress, token){
var functionSelector = 'getTokenToTrxInputPrice(uint256)';
var parameter = [
{
type: 'uint256',
value: token
}
]
var options = {};
transaction = await window.tronWeb.transactionBuilder.triggerConstantContract(contractAddress, functionSelector, options, parameter);
return window.tronWeb.BigNumber("0x"+transaction['constant_result'][0]);
}
priceUSDTTRX = window.tronWeb.fromSun(await takePrice(USDTTRX_ADDRESS, "1000000"));
priceSomeTone18TRX = window.tronWeb.fromSun(await takePrice(SomeTone18TRX_ADDRESS, "1"+"0".repeat(18)));

I have good result:
const TronWeb = require("tronweb");
const ethers = require('ethers')
const MAINNET_RPC = "https://api.trongrid.io";
const PLACEHOLDER_PRIVATE_KEY = "YOUR_PRIVATE_KEY";
const HttpProvider = TronWeb.providers.HttpProvider;
const fullNode = new HttpProvider(MAINNET_RPC);
const solidityNode = new HttpProvider(MAINNET_RPC);
const eventServer = new HttpProvider(MAINNET_RPC);
const tronWeb = new TronWeb(fullNode,solidityNode,eventServer,PLACEHOLDER_PRIVATE_KEY);
const startJustSwap = async () => {
try {
const contractTokenExchangeUSDT = 'TQn9Y2khEsLJW1ChVWFMSMeRDow5KcbLSE'; //S-USDT-TRX Token
const parameter = [{type:`uint256`,value: 10000000}];
const tx = await tronWebLocal.transactionBuilder.triggerConstantContract(contractToken, `trxToTokenSwapInput(uint256,uint256)`, {}, parameter);
console.log(tx);
} catch (e) {
console.log(e);
}
};
startJustSwap();

try const tokenBalance = await instance.balanceOf(account).call({ _isConstant: true });
It works for me.
transactionBuilder.triggerConstantContract works too, but mine is simpler

Make axios wait for redirection

I'm trying to scrape data from google map using the /search/ from maps.
When I search it myself, I tape this:
'https://www.google.com/maps/search/new york'
And then I'm redirected to this url:
'https://www.google.com/maps/place/New+York,+%C3%89tat+de+New+York,+%C3%89tats-Unis/#40.6974881,-73.979681,10z/data=!3m1!4b1!4m5!3m4!1s0x89c24fa5d33f083b:0xc80b8f06e177fe62!8m2!3d40.7127753!4d-74.0059728'
I can't manage to reproduce this behavior using axios. I guess there's maybe something to make with async / await but i didn't find any solution since then.
here's my code :
const axios = require('axios');
const cheerio = require('cheerio');
var map = 'www.google.com/maps/search/';
axios.get(map + 'New York')
.then(response => {
let getData = html => {
coor = [];
v= -1;
const $ = cheerio.load(html);
$('.widget-pane-content scrollable-y').each((i, elem) => {
coor.push({
adress : $(elem).find('span.widget-pane-link').text(),
});
});
console.log(coor);
console.log(coor.length);
}
getData(response.coor);
})
.catch(error => {console.log(error);})
When I execute the file, I get this error:
'Error: Request failed with status code 400'
If you have any clue to solve my problem, thanks for sharing it!

Look into a tool like Selenium, or Cypress.js (a wrapper around selenium)
(search "end to end testing" or "automated browser")
This unfortunately cannot be done with a tool like Axios. Google Maps doesn't return a redirect response, but rather uses JavaScript to reload the page.
example with cypress:
cy.visit("https://www.google.com/maps/search/new york");
cy.wait(2000); // sit for 2 seconds
cy.get('#thing-im-looking-for')

Try using cookieJar with axios
https://github.com/axios/axios/issues/943#issuecomment-599174929
Or set jar to true with request package
request(url, { jar: true })
https://stackoverflow.com/a/48912841/11686526

You can't get places info from Google Maps using axios, because results builds on the page via JavaScript, so you need to use some browser automation, e.g. Puppeteer. In the code below I show you how you can do this (also check it on the online IDE):
const puppeteer = require("puppeteer-extra");
const StealthPlugin = require("puppeteer-extra-plugin-stealth");
puppeteer.use(StealthPlugin());
const requestParams = {
baseURL: `http://google.com`,
query: "starbucks", // what we want to search
coordinates: "#47.6040174,-122.1854488,11z", // parameter defines GPS coordinates of location where you want your query to be applied
hl: "en", // parameter defines the language to use for the Google maps search
};
async function scrollPage(page, scrollContainer) {
let lastHeight = await page.evaluate(`document.querySelector("${scrollContainer}").scrollHeight`);
while (true) {
await page.evaluate(`document.querySelector("${scrollContainer}").scrollTo(0, document.querySelector("${scrollContainer}").scrollHeight)`);
await page.waitForTimeout(5000);
let newHeight = await page.evaluate(`document.querySelector("${scrollContainer}").scrollHeight`);
if (newHeight === lastHeight) {
break;
}
lastHeight = newHeight;
}
}
async function fillDataFromPage(page) {
const dataFromPage = await page.evaluate(() => {
return Array.from(document.querySelectorAll(".bfdHYd")).map((el) => {
const placeUrl = el.parentElement.querySelector(".hfpxzc")?.getAttribute("href");
const urlPattern = /!1s(?<id>[^!]+).+!3d(?<latitude>[^!]+)!4d(?<longitude>[^!]+)/gm; // https://regex101.com/r/KFE09c/1
const dataId = [...placeUrl.matchAll(urlPattern)].map(({ groups }) => groups.id)[0];
const latitude = [...placeUrl.matchAll(urlPattern)].map(({ groups }) => groups.latitude)[0];
const longitude = [...placeUrl.matchAll(urlPattern)].map(({ groups }) => groups.longitude)[0];
return {
title: el.querySelector(".qBF1Pd")?.textContent.trim(),
rating: el.querySelector(".MW4etd")?.textContent.trim(),
reviews: el.querySelector(".UY7F9")?.textContent.replace("(", "").replace(")", "").trim(),
type: el.querySelector(".W4Efsd:last-child > .W4Efsd:nth-of-type(1) > span:first-child")?.textContent.replaceAll("·", "").trim(),
address: el.querySelector(".W4Efsd:last-child > .W4Efsd:nth-of-type(1) > span:last-child")?.textContent.replaceAll("·", "").trim(),
openState: el.querySelector(".W4Efsd:last-child > .W4Efsd:nth-of-type(3) > span:first-child")?.textContent.replaceAll("·", "").trim(),
phone: el.querySelector(".W4Efsd:last-child > .W4Efsd:nth-of-type(3) > span:last-child")?.textContent.replaceAll("·", "").trim(),
website: el.querySelector("a[data-value]")?.getAttribute("href"),
description: el.querySelector(".W4Efsd:last-child > .W4Efsd:nth-of-type(2)")?.textContent.replace("·", "").trim(),
serviceOptions: el.querySelector(".qty3Ue")?.textContent.replaceAll("·", "").replaceAll(" ", " ").trim(),
gpsCoordinates: {
latitude,
longitude,
},
placeUrl,
dataId,
};
});
});
return dataFromPage;
}
async function getLocalPlacesInfo() {
const browser = await puppeteer.launch({
headless: false,
args: ["--no-sandbox", "--disable-setuid-sandbox"],
});
const page = await browser.newPage();
const URL = `${requestParams.baseURL}/maps/search/${requestParams.query}/${requestParams.coordinates}?hl=${requestParams.hl}`;
await page.setDefaultNavigationTimeout(60000);
await page.goto(URL);
await page.waitForNavigation();
const scrollContainer = ".m6QErb[aria-label]";
const localPlacesInfo = [];
await page.waitForTimeout(2000);
await scrollPage(page, scrollContainer);
localPlacesInfo.push(...(await fillDataFromPage(page)));
await browser.close();
return localPlacesInfo;
}
getLocalPlacesInfo().then((result) => console.dir(result, { depth: null }));
Output
[
{
"title":"Starbucks",
"rating":"4.4",
"reviews":"210",
"type":"Coffee shop",
"address":"3300 W McGraw St",
"openState":"Closed ⋅ Opens 6AM",
"phone":"(206) 298-3390",
"description":"Iconic Seattle-based coffeehouse chain",
"serviceOptions":"Dine-in Takeout Delivery",
"gpsCoordinates":{
"latitude":"47.639704",
"longitude":"-122.399869"
},
"placeUrl":"https://www.google.com/maps/place/Starbucks/data=!4m7!3m6!1s0x54901580f2d8ba8b:0xcc4a61a86f6d87ec!8m2!3d47.639704!4d-122.399869!16s%2Fg%2F1td6mc1x!19sChIJi7rY8oAVkFQR7Idtb6hhSsw?authuser=0&hl=en&rclk=1",
"dataId":"0x54901580f2d8ba8b:0xcc4a61a86f6d87ec"
},
{
"title":"Starbucks",
"rating":"4.3",
"reviews":"201",
"type":"Coffee shop",
"address":"701 5th Ave",
"openState":"Closed ⋅ Opens 5:30AM Mon",
"phone":"(206) 447-9934",
"description":"Iconic Seattle-based coffeehouse chain",
"serviceOptions":"Dine-in Takeout No delivery",
"gpsCoordinates":{
"latitude":"47.604155",
"longitude":"-122.330827"
},
"placeUrl":"https://www.google.com/maps/place/Starbucks/data=!4m7!3m6!1s0x54906ab0bab91e09:0xd1284ac9106e9c7e!8m2!3d47.604155!4d-122.330827!16s%2Fg%2F1tdmk5c9!19sChIJCR65urBqkFQRfpxuEMlKKNE?authuser=0&hl=en&rclk=1",
"dataId":"0x54906ab0bab91e09:0xd1284ac9106e9c7e"
},
... and other places
]
You can read more about scraping Google Maps Places from my blog post Web Scraping Google Maps Places with Nodejs.

NodeJS script not actioning with async/await

Cannot figure out why the below script won't run. It is likely the script is not going to do what I want but using
node ./contentful/contentful-assets.js
in the terminal, it does nothing - No errors, nothing logged for me to even start debugging. However, if I remove async it will attempt the script and shoot back an error.
./contentful/contentful-assets.js
const contentful = require('contentful-management');
const iterator = require('make-iterator');
const assets = require('./assetObject.js');
async resolve => {
console.log('Creating Contentful client');
const client = contentful.createClient({
accessToken: 'token',
logHandler: (level, data) => console.log(`${level} | ${data}`)
});
const iterableAssets = iterator(assets);
const space = await client.getSpace('space');
const environment = await space.getEnvironment('enviroment');
const cmsAssets = [];
const assetProcessingTimes = [];
const inProcess = new Map();
let processedAssetsCounter = 0;
const createAndPublishSingleAsset = async ({ asset, done, index }) => {
if (done) {
if (inProcess.size > 0) return false;
return resolve(cmsAssets);
}
const start = Date.now();
const id = '' + start + Math.round(Math.random() * 100);
inProcess.set(id, true);
let cmsAsset;
try {
cmsAsset = await environment.createAssetWithId(asset.postId, {
fields: {
title: {
'en-US': asset.title
},
description: {
'en-US': asset.description
},
file: {
'en-US': {
contentType: 'image/jpg',
fileName: asset.filename,
upload: asset.link
}
}
}
});
} catch (e) {
console.log(`Asset "${asset.title}" failed to create, retrying...`);
createAndPublishSingleAsset({
asset,
done,
index
});
}
try {
const processedCMSAsset = await cmsAsset.processForAllLocales();
const publishedCMSAsset = await processedCMSAsset.publish();
cmsAssets.push(publishedCMSAsset);
assetProcessingTimes.push((Date.now() - start) / 1000);
inProcess.clear(id);
const eta = Math.floor(
assetProcessingTimes.reduce((a, b) => a + b, 0) /
assetProcessingTimes.length *
(assets.length - index) /
60
);
processedAssetsCounter += 1;
console.log(
`Processed asset ${processedAssetsCounter}/${assets.length} - eta: ${eta}m`
);
createAndPublishSingleAsset(iterableAssets.next());
} catch (e) {
console.log(`Asset "${asset.title}" failed to process, retrying...`);
await cmsAsset.delete();
createAndPublishSingleAsset({
asset,
done,
index
});
}
};
console.log('Starting to create assets');
createAndPublishSingleAsset(iterableAssets.next());
createAndPublishSingleAsset(iterableAssets.next());
createAndPublishSingleAsset(iterableAssets.next());
};
assetObject.js
[
{
link: 'https://example.com/example1.jpg',
title: 'Example 1',
description: 'Description of example 1',
postId: '1234567890',
filename: 'example1.jpeg'
}, ... // Many more
]
What have I missed here?

I fear that you are not calling the function, could you try, the following?
const contentful = require('contentful-management');
const iterator = require('make-iterator');
const assets = require('./assetObject.js');
const doWork = async resolve => {
console.log('Creating Contentful client');
...
}
doWork();
You are just declaring a function that is async and does all of the code defined, but you are not actually calling it.

In this code snippet you are declaring a function, but never invoking it:
//declaring an async function, with "resolve" as the argument
async resolve => {
//function definition
}
In order to be able to later reference the function to invoke you can assign it to const/let/etc.:
const createAssets = async resolve => { }
//now, invoke
createAssets()