Ionic Camera Uploading to S3 - ionic-framework

Question

I am having a problem taking a picture and uploading it to an S3 bucket when using FILE_URI for the camera.DestinationType. When using this same process with the DATA_URL DestinationType it works fine.
When using FILE_URI the file that gets uploaded to the S3 bucket says it's corrupt. I did notice the file size is much smaller (~100B) than an actual image.
Here are the versions I am using:
Ionic Framework 3.9.2 and cordova-plugin-camera 4.0.2
Here is the code I'm using:
const options: CameraOptions = {
quality: 100,
correctOrientation: true,
destinationType: this.camera.DestinationType.FILE_URI,
encodingType: this.camera.EncodingType.JPEG,
mediaType: this.camera.MediaType.PICTURE,
sourceType: this.camera.PictureSourceType.CAMERA,
}
this.camera.getPicture(options).then((imageData) => {
console.log(imageData);
let base64data = 'data:image/jpeg;base64,' + imageData;
this.bigImg = base64data;
// imageData is either a base64 encoded string or a file URI
// If it's base64:
this.selectedPhoto = this.dataURItoBlob(this.bigImg);
}, (err) => {
// Handle error
console.log("Get Image Error: " + err);
});
this.sub = AWS.config.credentials.identityId;
let uploadMessage = "Uploading Image...";
let photoName = "testPic";
this.upload(this.selectedPhoto, uploadMessage, photoName)
.then(data => {
// Change active page to list
this.navCtrl.setRoot(TabsPage).then(() => {
});
});
dataURItoBlob(dataURI) {
// code adapted from: http://stackoverflow.com/questions/33486352/cant-upload-image-to-aws-s3-from-ionic-camera
let binary = atob(dataURI.split(',')[1]);
let array = [];
for (let i = 0; i < binary.length; i++) {
array.push(binary.charCodeAt(i));
}
return new Blob([new Uint8Array(array)], {type: 'image/jpeg'});
};
upload(selectedPhoto, uploadMessage, photoName) {
return new Promise((resolve, reject) => {
let loading = this.loadingCtrl.create({
content: uploadMessage
});
loading.present();
if (selectedPhoto) {
this.s3.upload({
'Key': 'protected/' + this.sub + '/' + photoName,
'Body': selectedPhoto,
'ContentType': 'image/jpeg'
}).promise().then((data) => {
this.data2 = data;
console.log('upload complete:', JSON.stringify(data));
loading.dismiss();
resolve(data);
}, err => {
console.log('upload failed....', JSON.stringify(err));
loading.dismiss();
reject(err);
});
} else {
loading.dismiss();
reject("upload failed");
}
});