Problems integrating Dropbox NPM

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1

I am trying to integrate access to dropbox within my backend code. I followed this thread: https://www.wix.com/velo/forum/coding-with-velo/dropbox-package-installation

But I am getting hung up on something very basic. Here is the top part of my https-functions.js file:

import {ok, badRequest} from 'wix-http-functions';
import wixUsers from 'wix-users-backend';
import wixData from 'wix-data';
import wixCrm from 'wix-crm-backend';
import {getSecret} from 'wix-secrets-backend';
import dropbox from 'dropbox';
import {fetch} from 'wix-fetch';

And here is a simple API to test with:

case 'deleteexpiredpendingxfers': {
    let results;
    try {
        results = await deleteExpiredPendingTransfers();
        response.body = {[RESULT_KEY]:true,"deleteexpiredpendingxfers":results.entries.length};
    } catch (error) {
        response.body = {[RESULT_KEY]:false};
    }
    return ok(response);

And finally, the function written initially not to do much except just ensure everything is wired up correctly:

async function deleteExpiredPendingTransfers() {
    console.log("deleteExpiredPendingTransfers function called");

    // Get a  Dropbox class
    let Dropbox = dropbox.Dropbox;
    // Get DB access token
    let token = await getSecret("dbat");
    // Get folder for items
    let xferfolder = "/" + await getSecret("dbpx");
    // Get a dropbox object
    let dbx = new Dropbox({ accessToken: token, fetch: fetch });

    return dbx.filesListFolder({path: xferfolder});

}

The problem is right off the bat, I’m getting an exception thrown:

Got error in deleteexpiredpendingxfers: TypeError: Cannot read property ‘Dropbox’ of undefined

Presumably this means that the variable ‘dropbox’ that I’ve imported at the top is ‘undefined’, so when I reference it in the function like:

let Dropbox = dropbox.Dropbox;

It is throwing an error because it doesn’t recognize the variable ‘dropbox’. Why is this? I can see that my dropbox npm is installed:

574×746 26.9 KB

Separately, when I get this error, even though my API returns a response on the client side caller (an android app), I am getting a “Timeout accessing the website” from within that app (I’m using Volley to make the https API call). I am not sure why that would be happening either, it is as if my:

 return ok(response)

is not being processed at the server?

2

OK I figured out the latter problem (“timeout at website”) which turned out to be a problem in my client mobile app.

However the main issue of the back-end code not recognizing the ‘dropbox’ variable still remains.

Help!

3

So I found a different example on the internet and tried it and this seems to work:

const { Dropbox } = require('dropbox');

Then I use ‘Dropbox’ directly as in:

// Get DB access token
let token = await getSecret("dbat");
// Get folder for items
let xferfolder = "/" + await getSecret("dbpx");
// Get a dropbox object
let dbx = new Dropbox({ accessToken: token, fetch: fetch });
// List the contents
results = await dbx.filesListFolder({path: xferfolder});

Not sure why a ‘require’ seems to be needed here when it isn’t with the other variables I reference from import statements, but apparently it is.