file upload fails and creates two "successful" json fields for hidden input

[birthdaycorp]

When the file upload fails and I try to upload the file a second time, the json encoded string that gets inserted has one empty successful field, one failed field, and then another successful field with the successfully uploaded file data. Is the empty successful array necessary? Is this by design or is this a bug?

[Murderlon]

Hi, what do you mean exactly with "another succesful" field?

There is only one per file: https://uppy.io/docs/uppy/#uppy-upload.

[birthdaycorp]

I closed this because I wasn't able to reproduce it, but just got the same bug again.

I don't know how else to describe this? What I meant was: I'm uploading an image, right? But say it fails. In the hidden uppyResults input, Uppy then creates an empty successful array and one failed array with its own uploadID. When I try again, and the upload is successful, I get a second successful field (this one actually containing the successfully uploaded file's data), and one empty failed field. The uploadID for this attempt is different from the other one.

When I submit the form afterwords, the successful field containing the data I need is ignored. My app only sees the first empty one.

Is there a reason for saving the failures to the input?

<input 
 name="uppyResult" 
  type="hidden" 
  	value="[{
   		"successful":[],
    	"failed":[{
    		"source":"Dashboard",
    		"id":"uppy-a8geo/fw/400x400/jpg-1d-2v-1e-image/jpeg-10097-1626922525568",
    		"name":"a8GeO-FW_400x400.jpg",
    		"extension":"jpg",
    		"meta":{
    			"relativePath":null,
    			"name":"a8GeO-FW_400x400.jpg",
    			"type":"image/jpeg"
    		},
    		"type":"image/jpeg",
    		"data":{},
    		"progress":{
    			"uploadStarted":1629936957479,
   				"uploadComplete":false,
   				"percentage":0,
   				"bytesUploaded":0,
   				"bytesTotal":10097
   			},
    		"size":10097,
    		"isRemote":false,
   			"remote":"",
   			"preview":"blob:https://example.com/c9b493d4-aeda-4b6e-b733-fe1e7527a2ba",
   			"error":"Could not get /media_files/s3/params?filename=a8GeO-FW_400x400.jpg&amp;type=image%2Fjpeg&amp;. Error: This looks like a network error, the endpoint might be blocked by an internet provider or a firewall.\n\nSource error: [TypeError: Failed to fetch]"
    	}],
    	"uploadID":"ckss6dpgk00013h63y3dieyle"
  	}, 
  	{
  		"successful":[{
  			"source":"Dashboard",
  			"id":"uppy-a8geo/fw/400x400/jpg-1d-2v-1e-image/jpeg-10097-1626922525568",
  			"name":"a8GeO-FW_400x400.jpg",
  			"extension":"jpg",
  			"meta":{	
  				"relativePath":null,
  				"name":"a8GeO-FW_400x400.jpg",
  				"type":"image/jpeg",
  				"key":"cache/e539f2ef0d2729f52462dff4a1f225dd.jpg",
  				"Content-Disposition":"inline; filename=\"a8GeO-FW_400x400.jpg\"; filename*=UTF-8''a8GeO-FW_400x400.jpg",
  				"Content-Type":"image/jpeg",
  				"policy":"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",
  				"x-amz-credential":"AKIA3JEZZFANO3B6R4TO/20210826/us-west-1/s3/aws4_request",
  				"x-amz-algorithm":"AWS4-HMAC-SHA256",
  				"x-amz-date":"20210826T001617Z",
  				"x-amz-signature":"7bfb97293d887e4bbb287f69b9bf8dd4ebcfd80bb8113bbbc714ec462ef4f158"
  			},
  			"type":"image/jpeg",
  			"data":{},
  			"progress":{
  				"uploadStarted":1629936977540,
  				"uploadComplete":true,
  				"percentage":100,
  				"bytesUploaded":11980,
  				"bytesTotal":11980,
  				"postprocess":null
  			},
  			"size":10097,
  			"isRemote":false,
  			"remote":"",
  			"preview":"blob:https://example.com/b6029b40-ea7f-4453-9809-5741005feed6",
  			"xhrUpload":{
  				"method":"post",
  				"formData":true,
  				"endpoint":"https://example.com",
  				"metaFields":[
  					"key","Content-Disposition",
  					"Content-Type","policy",
  					"x-amz-credential",
  					"x-amz-algorithm",
  					"x-amz-date",
  					"x-amz-signature"
  				],"headers":{}
  			},
  			"response":{
  				"status":204,
  				"body":{
  					"location":null
  				},
  				"uploadURL":null
  			},
  			"uploadURL":null,
  			"isPaused":false
  		}],
    	"failed":[],
   		"uploadID":"ckss6e4xv00023h63uov94n5e"
 		}
  ]"
 >

[Murderlon]

@arturi could you shed some light on this problem?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.