AWS Transcribe Streaming BadRequestException: Could not decode the audio stream...

I'm building a Transcribe Streaming app in Dart/Flutter with websockets. When I stream the test audio (pulled from a mono, 16kHz, 16bit signed little endian WAV file),...

Uploaded file to S3 via PreSigned URL from Flutter App. but the file is corrupted when i download it

I am working on a Flutter App, where I upload image file (PUT Request) to AWS S3 using a presigned URL. The upload is successful as I can see the file in S3. But when...

Platform Exception when trying to signup

I am trying to sign up a user using a simple code where I have hardcoded the email and password as well. the code looks as following: <pre><code>Future&lt;String&g...

AWS Polly Request from Flutter using sigv4 plugin

I am using <a href="https://pub.dev/packages/sigv4" rel="nofollow noreferrer">https://pub.dev/packages/sigv4</a> dart package to make a request to AWS Polly. I am gett...

Android and ios push notification with aws amplify and fcm

How push notification work with AWS SNS and amplify?<br> What i guess is AWS SNS will send notification to FCM and SNS is triggering from backend then FCM will distri...

Flutter build fails due to Amplify_core

I recently upgraded my flutter application to Android V2, and also made my code null safe. Now when I try to run my code I get the below build error: <pre><...

Disable Cognito email confirmation after sign up

I have a flutter app that uses Cognito for authentication. Unlike in Firebase the user needs to confirm the email address, so you can't proceed as a logged in u...

Most common methods to play audio and video for app users fast and efficiently?

I've seen several methods and opinions -- including streaming the media (HLS, RTSP), or just using regular mp3, AAC, mp4, etc. What is the most common method for playi...

Flutter load image to S3 bucket

I want to upload an image to a S3 bucket using a AWS presigned key. This curl command works: curl -X PUT --upload-file file.txt "Signed Key (URL)" How...

Flutter video_player initialization error when initializing multiple videos

<h2>Problem I need help with</h2> Assist with optimizing latency in its Short-Video Feed and solving intermittent performance bugs. A central feature of my...

best practice for streaming images in S3 to clients through a server

I am trying to find the best practice for streaming images from s3 to client's app. I created a grid-like layout using flutter on a mobile device (similar to i...

MaterialPage not found inside a list of pages inside a Navigator

I am trying to achieve a <a href="https://aws.amazon.com/getting-started/hands-on/build-flutter-app-amplify/module-one/" rel="nofollow noreferrer">course in AWS</a> to...

How to trigger an AWS Lambda function that takes input from a Flutter form when a submit button is pressed

I have a Lambda function, which currently works. It takes three strings as input and makes an entry in DynamoDB. I have a Flutter app (which is additionally an...

How to login with Google on AWS project in flutter

I'm using <a href="https://pub.dev/packages/amazon_cognito_identity_dart_2" rel="nofollow noreferrer">amazon_cognito_identity_dart_2</a> for handling the authenticatio...

Flutter Amplify - Cannot run appsync code gen for existing api

I have an existing AppSync API that I need to use in a new flutter app. After initializing amplify in my project, i run the command amplify add codegen --apiId...