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Upload An Image With The BaaS Components For Delphi XE6 Firemonkey On Android And IOS

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Delphi XE6 Firemonkey BaaS Image Uploader | Delphi 11 10 XE8 XE7 XE Seattle Berlin Tokyo Rio Firemonkey Delphi Android Delphi IOSSarina DuPont from Embarcadero has a blog post up with a tutorial for uploading and viewing images using the BaaS components in Delphi XE6 Firemonkey. Parse is the backend provider used in the tutorial. The main component is the TBackendFiles component which plugs into the provider component (in this case TParseProvider). You basically save your image to a TMemoryStream and pass that to the UploadFile function of TBackendFiles.Files. What is also interesting about this tutorial is that it shows how to use the response object which is a TBackendEntityValue to get the URL of the uploaded file. Here is the example upload code:
LStream: TStream;
LFile: TBackendEntityValue;
LStream := SaveImage;
BackEndFiles1.Files.UploadFile(’mypicture3.png’,LStream, ‘image/png’,LFile);
ShowMessage(’Image has been uploaded’);
Edit1.Text := LFile.DownloadURL;

The download image function is also interesting and it downloads to a TMemoryStream as well before loading it into a bitmap. The download code snippet is here:
LStream: TMemoryStream;
LStream := TMemoryStream.Create;
REST.Client.TDownloadURL.DownloadRawBytes(AUrl, LStream);

Head over and check out the full tutorial on how to upload an image using the BaaS components and then download and view the same image.

Have Delphi Firemonkey questions? Ask and get answers on StackOverflow.

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