500 (Unexpected character ('-' (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value at [Source: java.io.StringReader@45a1bf65; line: 1, column: 3])

I am trying to upload an excel file with ng-file-upload. When I use the uploadBySubmit method, I get the following error.

com.google.appengine.repackaged.org.codehaus.jackson.JsonParseException: Unexpected character (‘-’ (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value at [Source: java.io.StringReader@45a1bf65; line: 1, column: 3]

I will be grateful if someone could let me know what I am doing wrong.

This is my controller:

angular_app.controller(‘settingsImportOrExportController’, [‘$scope’, ‘settingsImportOrExport’, ‘Utils’, ‘Upload’, function($scope, settingsImportOrExport, Utils, Upload){

$scope.uploadUsingUpload = function (file) {
    file.upload = Upload.upload({
        url: '/_ah/api/havasay/v1/resource/categories',
        method: 'POST',
        headers: {
            'x-hs-salt': _salt,
            'skey': (Utils && Utils.getOrganizationDetails() && Utils.getOrganizationDetails().skey),
            'Content-Type': undefined
        },
        fields: {organizationId: Utils.getOrganizationDetails()._id},
        file: file,
        fileFormDataName: 'myFile'
    });

    file.upload.then(function (response) {
        $timeout(function () {
            file.result = response.data;
        });
    }, function (response) {
        if (response.status > 0)
            $scope.errorMsg = response.status + ': ' + response.data;
    });

    file.upload.progress(function (evt) {
        // Math.min is to fix IE which reports 200% sometimes
        file.progress = Math.min(100, parseInt(100.0 * evt.loaded / evt.total));
    });

    file.upload.xhr(function (xhr) {
        // xhr.upload.addEventListener('abort', function(){console.log('abort complete')}, false);
    });
};
}]);

This is my html file:

form name=“myForm” ng-controller=“settingsImportOrExportController”

<fieldset> <legend>Upload on form submit</legend> Profile Picture:

<button ng-disabled="!myForm.$valid" ng-click="uploadUsingUpload(picFile)">Submit</button>
<!-- <img ng-show="picFile != null" ngf-src="picFile" class="thumb">
<span class="progress" ng-show="picFile.progress >= 0">
    <div style="width:{{picFile.progress}}%" ng-bind="picFile.progress + '%'"></div>
</span>
<span ng-show="picFile.result">Upload Successful</span> -->

</fieldset>
/form

[gamebox]

Don’t really understand why this issue is closed. No resolution seemed to be reached. I was actually experiencing the same bug with almost identical code. For me, all that had to change was putting the widget inside of a named form. Might not address the issue above, but that may help someone else witht this issue

[torbenr]

Hi - I had a very similar problem trying to send a request via PostMan to the Nuxeo API. To cut a long story short I was mistakenly setting “content-type” as “application/json” when it should have been “multipart/form-data”