在laravel api中从react-native app调整base64图像的大小？

I'm trying to develop an app that can send a user image input in base64 from their device camera and let my api handle, resize and save the image in jpg format, I'm using react-native image-picker as the camera handler. Here's my code so far

// in imageHandlerController.php
public function resizeImage($image) {
    $resizeImage = Image::make($images)->resize(512, 512, function($constraint) {
            $constraint->aspectRatio();
        })->orientate();

    return $resizeImage->response();
}

public function imageHandler(Request $request){
DB::beginTransaction();
    try {
        $constants = Config::get('constants');
        $path = $constants['UPLOAD_PATH'].'/images';
        $random_name = str_random(20);
        $selfie = $request->selfieImage;
        $selfie = str_replace('data:image/png;base64,', '', $selfie);
        $selfie = str_replace(' ', '+', $selfie);
        $selfie_name = 'selfie-'.$random_name.'.png';
        File::put($path.'/partners/'.$selfie_name, $this->resizeImage($selfie));
 }

Here's the post request on index.js

launchCameraSelfie = () => {
    ImagePicker.showImagePicker(response => {
      if (response.didCancel) {
        console.log('User cancelled image picker');
      } else if (response.error) {
        console.log('ImagePicker Error: ', response.error);
      } else {
        let source = response;
        this.setState({
          selfieImage: source.data
        });
      }
    });
 };

It show Unable to init from binary data as an error How can i do this? any help will be appreciated...

It looks like you are using the Intervention Image package. The documentation shows that it is indeed possible to convert a base64 string to an Image.

What is unclear to me is why you remove the initial string data:image/png;base64, from the encoded image. I can imagine this part to be necessary for Intervention to work.

I shortened and rewrote your code a bit. This works for me:

use Intervention\Image\ImageManagerStatic as Image;

$selfie = $request->selfieImage;

$img = Image::make($selfie);
$img->resize(512, 512, function($constraint) {
    $constraint->aspectRatio();
})->orientate();
$img->save(storage_path('images') . '/test.png');

For easy testing, the following base64 image can be used (it represents a single black pixel):

$selfie = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNk+A8AAQUBAScY42YAAAAASUVORK5CYII=';

If you want to do some in-depth debugging, have a look at Intervention's AbstractDecoder class and its init() function. It is the place where the image type is identified, and for some reason your image is identified as binary.