Power Platform Community Forum Thread Details

Hey there everyone, so I had an issue that is giving me a little of a headache. I was setting an app to take a couple of pictures and sent them to Power Automate to evalute both photos by photo recognition. Now, everything was working smooth while I was making test with the computer, but now I started to make tests with phones. So this is the deal, when I was working with the PC, the process was able to convert the photo taken by the camera to JSON and to evaluate properly on Power Automate and IA Hub. When I tried to take the pictures with the phone, surprise! now we do not have a string as we had at the PC, we have just an output like this: /SessionStorage/F80808c-asd-asdlijasdij.jpeg

So what I think is the app running on the iphone is making things different, but now I am not reaching an answer with my knowledge, do you know how to get this string correct again when we are working with the phones?

Thank you!

Donaldo

Categories:

Building Power Apps

Hi @DZ-24020228-0,

This is expected behavior on mobile.

On iOS/Android, the Camera/Add picture controls often return a media URI reference (like /SessionStorage/...jpeg) when the value gets coerced to text. Microsoft calls this out: captured media can be “referenced by a text string URI,” and if you need to transmit it, you should base64-encode it using JSON().

Fix (Power Apps)

Don’t pass the camera output directly. Convert it explicitly to a base64 data URI:

Set(
    varImgJson,
    JSON(Camera1.Photo, JSONFormat.IncludeBinaryData)
);
MyFlow.Run(varImgJson);

This forces Power Apps to include the binary image data (base64) instead of the /SessionStorage/... reference.

In Power Automate

Your parameter will look like: "data:image/jpeg;base64,AAAA..."

Convert it to binary before sending to AI/vision actions (example expression):

dataUriToBinary(triggerBody()?['text'])

(Use the action/input where your Power Apps parameter lands.)

Hope that will help you with the above issue.

Community site session details

Camera images and JSON on Iphone

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