Long text/string on Parse server

I'm trying to save a long text/string on a parse-server instance that's hosted on heroku. I'm saving this through a node-js code. Of course, mongodb is used as the db.

The string is part of a parse object and when I try to save it, I get an error on Parse that doesn't help:

ParseError { code: 1, message: undefined }

Upon checking the logs through Parse Dashboard, I see:

Error generating response. { MongoError: Btree::insert: key too large to index, failing aaa.prod.$_p_productDescription_1 1034 { : "aaaLocation$jw5PnglCB1", : new Date(1494147063161), : "This is the text I'm trying to create in mongo blablablablalbalbalbalbalbalblablalbalalbalblablablalbalbalblalbalblab..." }
    at Function.MongoError.create (/app/node_modules/mongodb-core/lib/error.js:31:11)
    at toError (/app/node_modules/mongodb/lib/utils.js:139:22)
    at /app/node_modules/mongodb/lib/collection.js:739:67
    at /app/node_modules/mongodb-core/lib/connection/pool.js:461:18
    at _combinedTickCallback (internal/process/next_tick.js:73:7)
    at process._tickDomainCallback (internal/process/next_tick.js:128:9)
  name: 'MongoError',
  message: 'Btree::insert: key too large to index, failing aaa.prod.$_p_productDescription_1 1034 { : "aaaLocation$jw5PnglCB1", : new Date(1494147063161), : "This is the text I'm trying to create in mongo blablablablalbalbalbalbalbalblablalbalalbalblablablalbalbalblalbalblab..." }',
  driver: true,
  index: 0,
  code: 17280,
  errmsg: 'Btree::insert: key too large to index, failing

Is there no way to store long texts in mongo through a Parse server?

Maybe I'm not supposed to be doing this with such an implementation, but what's the alternative?

via theNotSoPro