Cloud code doesn't automatically parse File objects

[smassin]

Issue Description

When uploading a ParseFile as a parameter to cloud code it does not automatically parse the object and transform it into the ParseFile on the cloud code side. On parse.com it would do this automatically. Essentially I could save a file on the client and then pass the ParseFile as a parameter in a cloud call and then on the cloud side it would show up as a ParseFile. Documented here: https://parse.com/docs/rest/guide#objects-data-types . Instead the cloud side just sees a normal JSON object that would represent a ParseFile. Even using the Parse Client JS SDK has the same problem.

To further muck up the situation, parse-server allows these JSON objects to be saved in File columns but when they are retrieved they are still a basic JSON object and calling .url() causes the server to spin forever and never complete the request.

1. Was this functionality intentionally removed?
2. While its fine that it doesn't automatically convert to a ParseFile, the Parse SDK doesn't provide a way to create a Parse.File manually from such a JSON structure. Any thoughts?

Steps to reproduce

1. Run code such as:

var parseFile = new Parse.File("theFile", document.getElementById("theFile").files[0]);
parseFile.save().then(function(file){
   Parse.Cloud.run("cloudFunction", {file:file})
})

Expected Results

Parse.Cloud.define("cloudFunction", function(request, response) {
 response.success(request.params.file instanceof Parse.File);
})

request.params.file instanceof Parse.File === true;

Actual Outcome

request.params.file instanceof Parse.File === false;

Environment Setup

• Server
  • parse-server version: 2.2.14
  • Localhost or remote server? Azure
• Database
  N/A -- Completely parse-server software issue

Logs/Trace

Outcomes above should be detailed enough.

[flovilmart]

That seems to be valid, do you want to try to fix it?

[smassin]

Ha, didn't see that coming. I haven't actually compiled the source myself.
I could have a look if you can give me an idea which file deals with parsing the request parameters?

EDIT: Even still, I don't know the correct procedure for converting a JSON structure in a Parse.File. Is that documented somewhere?

[flovilmart]

@smassin this is a community project :)

We already have a parse for Dates, https://github.com/ParsePlatform/parse-server/blob/master/src/Routers/FunctionsRouter.js#L63

Need to add a new Parser for files.

[flovilmart]

I can give it a go, that seems pretty straight forward

[smassin]

Thanks I appreciate it.

[smassin]

Confirmed working. Thanks a lot @flovilmart 👍