Having problems deleting file via REST api - getting 404

[astanton]

I have some cloud code that I'm calling from my parse instance that is the following:

Parse.Cloud.httpRequest({
            method: 'DELETE',
            url: url,
            headers: {
                'X-Parse-Application-Id': process.env.APP_ID,
                'X-Parse-Master-Key': process.env.MASTER_KEY
            }
        }).then(function(httpResponse) {
            console.log(httpResponse.text);
        }, function(httpResponse) {
            console.error('Request failed with response code ' + httpResponse.status);
        })

I'm getting the message Request failed with response code 404 in the heroku log. I'm positive that the url exists that I'm passing in because I can hit it in my browser and it downloads the image that I am trying to delete.

I'm also positive that my process.env.APP_ID and process.env.MASTER_KEY are correct as well since I've printed those to the log as well and seen them.

Is there another step that I'm missing here?

[astanton]

Just for reference, this is what I was trying to follow to delete the files.

https://parse.com/questions/how-can-i-delete-a-file

[drew-gross]

Could you post some parse server logs as well? Also, was this file originally created on api.parse.com? If so, you'll need to use api.parse.com to delete it.

[astanton]

@drew-gross No these were created with the server hosted on Heroku.

Here is the log of a delete request that fails:

2016-05-13T20:14:43.495784+00:00 heroku[router]: at=info method=DELETE path="/parse/files/SBcAs3A0hkTsaoU5JW7GP4YlRVNfMNo7tRg1rQJy/774d87665ad847441f9b31bd7b0ea9a3_file.bin" host=app-name.herokuapp.com request_id=3f12a88e-6857-4cc0-9c6e-b889bdfd7f0b fwd="54.166.161.252" dyno=web.1 connect=0ms service=4ms status=404 bytes=626

And in this case, the url that was passed into the Parse.Cloud.httpRequest call as shown in my original post was:

http://app-name.herokuapp.com/parse/files/SBcAs3A0hkTsaoU5JW7GP4YlRVNfMNo7tRg1rQJy/774d87665ad847441f9b31bd7b0ea9a3_file.bin

And if I hit that URL directly, it downloads the picture to my laptop.

[drew-gross]

Thats a Heroku log. I need the Parse Server log. Set verbose: true in your server options to enable logging.

[astanton]

@drew-gross would that be in the Heroku Config Variables that I set that? Or in my index.js file where I'm calling new ParseServer() and pass that to it in the config object?

[drew-gross]

In your index.js where you call new ParseServer().

[astanton]

@drew-gross Sorry for the noobness, but where will these logs appear after I add that flag? I assumed they would add more stuff to the application server log that I see on Heroku but nothing more is showing up there.

[drew-gross]

That flag will cause every request and response to be logged. If there is nothing showing up, then there must be some other issue with your configuration.

[astanton]

@drew-gross any idea how I can figure out what else may be wrong with the configuration? Here's the call that creates the new server object.

var api = new ParseServer({
    databaseURI: databaseUri,
    cloud: __dirname + '/cloud/index.js',
    appId: appId,
    masterKey: masterKey,
    serverURL: serverURL,
    facebookAppIds: ['1234567890'],
    verbose: true,
    push: {
        ios: {
            pfx: __dirname + '/certs/cert.p12',
            bundleId: 'bundle.id',
            production: false
        }
    }
});

[astanton]

@drew-gross okay so I figured out the issue with verbose and I now have it working.

When I call the code in question, I don't even see the DELETE request in the parse-server logs at all.

I have this running locally and here is the exact code I'm running:

Parse.Cloud.define('removeOldFilesFromDB', function (request, response) {

    var fileUrls = request.params.fileUrls;
    var promises = [];

    for (var a = 0; a < fileUrls.length; a++) {

        promises.push(Parse.Cloud.httpRequest({
            method: 'DELETE',
            url: fileUrls[a],
            headers: {
                'X-Parse-Application-Id': process.env.APP_ID || 'myAppId',
                'X-Parse-Master-Key': process.env.MASTER_KEY || 'myMasterKey'
            }
        }));

    }

    Parse.Promise.when(promises).then( function (result) {
        console.log("Successfully deleted files");
        response.success(result);
    }, function(a,b,c,d,e) {
        console.log("Nope jacked it up!");
        response.error("Error deleting files");
    });

})

When I put a break point down in the error function, "a" is just an array and they all say error 404.

Also, this is the exact output after I make that call, on the log:

verbose: POST /parse/functions/removeOldFilesFromDB { host: 'e0ae0682.ngrok.io',
  'x-parse-client-version': 'i1.12.0',
  accept: '*/*',
  'x-parse-session-token': 'r:5290c76c47678213770765d990ee38b6',
  'x-parse-application-id': 'myAppId',
  'x-parse-client-key': 'myClientKey',
  'x-parse-installation-id': '3fafc219-1c63-4d68-b42f-5caa3e1c27cb',
  'accept-language': 'en-us',
  'accept-encoding': 'gzip, deflate',
  'x-parse-os-version': '8.1 (12B411)',
  'content-type': 'application/json; charset=utf-8',
  'content-length': '204',
  'user-agent': 'Spin%20the%20Bottle/1 CFNetwork/711.1.12 Darwin/14.0.0',
  'x-parse-app-build-version': '1',
  'x-parse-app-display-version': '1.0',
  'x-forwarded-for': '71.163.238.223' } {
  "fileUrls": [
    "http://e0ae0682.ngrok.io/parse/files/myAppId/7b5b50e2871af27971be0425f367ab96_file.bin",
    "http://e0ae0682.ngrok.io/parse/files/myAppId/cff909602b60b15331b1ac60a4f08697_file.bin"
  ]
}
At top of remove old files func file urls length is 2 and values are ["http://e0ae0682.ngrok.io/parse/files/myAppId/7b5b50e2871af27971be0425f367ab96_file.bin","http://e0ae0682.ngrok.io/parse/files/myAppId/cff909602b60b15331b1ac60a4f08697_file.bin"]
Nope jacked it up!
verbose: error: code=141, message=Error deleting files

So it's odd that the DELETE call is not even showing up in there. Am I calling it wrong with the Parse.Cloud.httpRequest method or something?

And again, if I hit the values for fileUrl in my browser, it downloads the images I'm trying to delete so the path is correct.

This is on the latest released version of parse-server, 2.2.10.

[drew-gross]

That is not the correct way to delete files. Please check the docs or ask a question on Stack Overflow if you are having trouble, this repo is for reporting bugs in Parse Server.

[astanton]

Well I was following this here:

https://parse.com/docs/rest/guide/#files-deleting-files

And this here to make the rest call from the cloud code:

https://parse.com/questions/making-a-rest-call-from-within-cloud-code

According to that, it says I can use Parse.Cloud.httpRequest to make REST calls, so I am not sure what you are referring to as that not the correct ways. Both of those have links to the docs and that is what I followed.

[ZhenanH]

@astanton have you solved the problem, I have similar problem. I used Parse.Cloud.httpRequest to make REST calls to delete photos, but always fails.

[junal]

@astanton how did you fix this problem?

[iatek]

At long last, I determined why the endpoint was not working, and always returning a 404. The name of the request URL is very important! It's NOT the full file url as one would expect. For example, the full url of the files on my parse-server look like:

http://myserver.com/parse/files/MqX4RIjBpnVgUg9lRrxmWRsDVmqR5SCOaYmnSpnx/fa4492b3be10b5eac60881d2c6462730.png

To get the /files endpoint to DELETE this file the request URL is:

http://site2img-api.herokuapp.com/parse/files/fa4492b3be10b5eac60881d2c6462730.png

So, when the docs mentioned "To delete a file, send a DELETE request to the files URL, postfixed with the name of the file", it's correct! You just need to get rid of that extra /xxxxxxxxx before the actual filename.

Here's my working cloud code....

Parse.Cloud.httpRequest({
	method: "DELETE",
	url: "http://.../parse/files/664a8e00a0ccd0fd44ca1d4e4a0c2ca5.png",
	headers: {
		'X-Parse-Application-Id':'MqX4RIjBpnVgUg9lRrxmWRsDVmqR5SCOaYmnSpnx',
		'X-Parse-Master-Key':'ZjpLGVWBJujDdElxxGeEh2fpS041PiQSAqk8cwCi',
	}
}).then(function(httpResponse) {
   //... it worked!!
}, function(httpResponse) {
	console.error('Delete request failed with response code ' + JSON.stringify(httpResponse));
});

[JacobJT]

I think it may also have had to do with you using ngrok in the request instead of your actual server URL.

[emadehsan]

@iatek you are right! remove the Application Id from file URL
If file is at: https://YOUR.PARSE-SERVER.HERE/parse/files/SOME_APP_ID/profile.png, you need to make request at https://YOUR.PARSE-SERVER.HERE/parse/files/profile.png

curl -X DELETE \
  -H "X-Parse-Application-Id: ${APPLICATION_ID}" \
  -H "X-Parse-Master-Key: ${MASTER_KEY}" \
  https://YOUR.PARSE-SERVER.HERE/parse/files/profile.png

Docs don't explicitly specify this