Dropbox Bearer token is too short

[TheKrominator]

When I log in to DropBox, I get approved and receive my auth token. But, the token is too short!

I should receive : "################################-###############################"

but I get :             "###################-#######################"

This returns a "invalid_access_token" error. 

Below is my layout for passport-dropbox-oauth2:

app.get('/dropboxLogin', passport.authenticate('dropbox-oauth2'));

app.get('/auth/dropbox/callback',
passport.authenticate('dropbox-oauth2', { failureRedirect: '/' }),
function(req, res)
{
// Successful authentication, redirect home.
res.render('index', { title:'Dropbox Login', body:res});
});

app.get('/loggedIn', function(req,res)
{
//have bearer token
let token = req.query.code;
console.log(req.query);
res.redirect('/Callback/?token='+token);
});

[Greg-DB · Accepted solution]

It sounds like you're using the "code" flow, so Dropbox will return an "authorization code", not an access token. When using the code flow, once you receive the authorization code, you need to then exchange it for an access token using /oauth2/token.

Check out the /oauth2/authorize and /oauth2/token documentation for more information on how this works.