Hello 

I'm trying since hours to delete file(s) in backend by Business Logic but file(s) won't be deleted. I assume what I have done is pretty ok. There must be a small change then it works: 

var appKey = modules.backendContext.getAppKey();
var masterSecret = modules.backendContext.getMasterSecret();
var authString = "Basic " + modules.utils.base64.encode(appKey + ":" + masterSecret);

modules.request.get(        // with post: res.status = 201
      {uri: 'https://baas.kinvey.com/appdata/kid_xxxxxxx/_blob/',
       method: 'DELETE',
        params: {'gameid':gameId},
       headers: {"Authorization":authString}
      },
            function(error, res, body){
            if (error){
              logger.info(error);
            } else {
              logger.info ("del ok");
              response.body = JSON.parse(body);
              logger.info(res.status);
              logger.info (JSON.stringify(response.body) );
            }
});

 The execution heads into the else case (no error) and outputs this:

• del ok
  
• 200
  
• [{"_id":"9b42b619-0a0f-1c6b-9d6d-8701c5fda37e","gameid":"GNREB1A","_filename":"9b42b...
  

That tells me everything is ok but the file(s) with gameid = GNREB1A won't be deleted!

Someone an idea why files still there?

Desperate greetings

Thanks a ton, Pranav, for your help! Sadly I was not able to make your version work:  

var logger = modules.logger;
modules.request.request(
    {uri: 'https://baas.kinvey.com/blob/kid_xxxxxxxx?query={"gameid":"'+gameId+'"}',
     method:'DELETE',
     headers: {
          "Authorization": request.headers.authorization
        }
     //params: {'gameid':gameId}, // won't work either this way
    },
    function(error, res, body){
      if (error){
              logger.info ("entered error");
              logger.info(error);
              response.error(error);
            } else {
              response.body = JSON.parse(body);
              logger.info(res.status);
              logger.info (JSON.stringify(response.body) );
              response.complete();
            }
    });

Output:

400

{"error":"The request was not understood.","request":"DELETE /blob/kid_xxxxxxxx?query={%22gameid%22:%22GNJB5B4%22}"}... 

I found out that the URI path is causing the error. So I switched back to mine:

uri: 'https://baas.kinvey.com/appdata/kid_SkYzM4SHM/_blob/?query=...

Your URI looks much cleaner but can't makie it work with it. :(

In between I was able to make it work with the "del" command as well:

No big thing but I wasn't able to hand over the query parameter by "params":

params: {'gameid':gameId}

{"error":"MissingRequestParameter","description":"A required parameter is missing from the request.","debug":"The request URI should either specify th...

400

Probably my fault somewhere in the code. Nevertheless it works like a charm attaching it to the URI path.

The fully working example:

// works also with modules.request.del(...)
    modules.request.request(
    {uri: 'https://baas.kinvey.com/appdata/<kid_xxxxxxxx>/_blob?query={"gameid":"'+gameId+'"}',
     method:'DELETE',
     headers: {
          "Authorization": request.headers.authorization
        }
     //params: {'gameid':gameId},
    },
    function(error, res, body){
      if (error){
              logger.info ("entered error");
              logger.info(error);
              response.error(error);
            } else {
              response.body = JSON.parse(body);
              logger.info(res.status);
              logger.info (JSON.stringify(response.body) );
              response.complete();
            }
    });

Thanks and Regards