[GitHub] [cordova-plugin-file] breautek commented on issue #448: How can i get the real js File Object from the localpath?

[GitBox <gi...@apache.org>]

breautek commented on issue #448:
URL: https://github.com/apache/cordova-plugin-file/issues/448#issuecomment-747074073


   Unfortunately the `File` type is a special type that cannot be constructed manually, therefore Cordova cannot give you the "real" (browser native `File`) object. Only the browser itself can construct native `File` objects through certain browser APIs.
   
   A workaround is to read the file into a blob, which can be sent to the server in the same way as a `File` type can be. The native `File` type is a `Blob`, so any API that expects a `File` type will also work with a `Blob` type.
   
   see below for an example of how to read the file as a blob:
   
   ```js
   function readBinaryFile(fileEntry) {
   
       fileEntry.file(function (file) {
           var reader = new FileReader();
   
           reader.onloadend = function() {
   
               console.log("Successful file write: " + this.result);
               displayFileData(fileEntry.fullPath + ": " + this.result);
   
               var blob = new Blob([new Uint8Array(this.result)], { type: "image/png" });
               displayImage(blob);
           };
   
           reader.readAsArrayBuffer(file);
   
       }, onErrorReadFile);
   }
   ```


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