AWS-Online-Tech-Talks
The video discusses Flutter, its advantages, and AWS Amplify for mobile, web, and desktop platforms. The speaker provides tips for setting up and installing Flutter and explains how AWS Amplify helps developers build full-stack applications. They show how to use the Amplify CLI to configure and maintain a backend, add authentication using Amplify UI and Cognito, and implement persistence using Amplify DataStore. The video also demonstrates Amplify Starter, which allows for easy project creation and initialization.
In this section, the presenter explains what Flutter is and its advantages for developers. Flutter is Google's portable UI toolkit for creating beautiful and native applications for mobile, web, and desktop from a single codebase. Flutter uses the Dart language, which is great for writing UI and has spent the last few years making it easier to write Flutter apps. Dart is fast on all platforms and has native performance with its ahead-of-time compilation. Flutter supports 60 frames per second or more, thanks to its own Graphics engine called Skia, which enables hardware-accelerated graphics. Flutter is open source, has many contributors worldwide, and hosts its development discussions on Github. Flutter enables developers to deploy apps to all desktop platforms, including macOS, Windows, and Linux. Flutter also has tools that help developers with their development experience, including Visual Studio code, IntelliJ IDEA, or Android Studio. Lastly, Flutter has UI and performance monitoring tools to improve app quality, and many companies have trusted Flutter for their applications, with over 400,000 published applications since its first stable release in December 2018.
In this section, the video discusses how Java and Dart are used to communicate with the host application and how Flutter allows developers to have full control over the widget rendering, animation, and gestures by using Dart. The video then goes on to explain how AWS Amplify provides tools and services for front-end web and mobile developers to quickly and easily build full-stack applications powered by AWS. AWS Amplify comes with purpose-built tools such as open-source client libraries, Amplify CLI, AWS Amplify Studio, and Amplify Hosting, which support different platforms, including flutter applications. AWS Amplify supports authentication, serverless APIs, storage analytics, and DataStore libraries for flutter applications. The video concludes by encouraging viewers to create a two-door application with authentication and cloud persistence by using Flutter and AWS Amplify.
In this section, the speaker provides tips for installing and setting up Flutter for mobile, web, and desktop platforms. They suggest adding the Flutter SDK to your path and downloading both Android Studio and Xcode to avoid potential errors. Additionally, the speaker recommends installing the Flutter and Dot plugins to streamline the app creation process and offers instructions for creating a new project. They also introduce the concept of widgets and how to use them to build a user interface. Finally, the speaker discusses how to add AWS Amplify to a Flutter project by importing it as a library.
In this section, the video discusses how to use the Amplify CLI to configure and maintain your app's backend from your local desktop. After installing Amplify CLI, you must configure it to use your AWS account by providing your IAM user's credentials. Once configured, you can initialize your project by running the "amplify init" command in your project's root directory. To use Amplify with Flutter for iOS and Android, you must update your project's configuration files and add the necessary libraries. Additionally, for desktop platforms like Linux and macOS, you must install certain libraries and configure settings like enabling keychain sharing and updating the deployment target for macOS to 10.15.
In this section, the video explains how to add authentication to a Flutter application using AWS Amplify. The Amplify auth category provides built-in support for Amazon Cognito user pool and identity pool. The Amplify CLI can be used to create and configure the auth category with authentication providers such as email, phone number, or social media, among other options. After adding the amplify auth Cognito library to the project, developers can update the configure amplify function in the main.dart file to connect the Flutter app with the authentication library. The video also demonstrates how to add Amplify UI's authentication to the project with a fully customizable flow that works out of the box. Finally, the video explains how to run the application on desktop platforms and showcases a user logging in with their credentials.
In this section, the speaker discusses how to implement persistence in Flutter apps using Amplify DataStore. Amplify DataStore is an offline-first, real-time database that provides persistent on-device storage repositories for reading, writing, and observing changes. The speaker explains that data modeling is done in GraphQL and that everything is converted into models. In order to enable DataStore, the user needs to write "amplify API add" to their terminal, select GraphQL for the services to be used, and enable conflict detection. The user must also pick a strategy for conflict resolution. Once data store libraries are added to the Flutter project, the schema.graphql file should be updated and code generation run to generate model files. After code generation, amplify push is used to push changes and enable the To-Do object, which can be created using the English Words package. Finally, the user can add a new action button to their app bar to add to-dos and configure Amplify DataStore in the configureAmplify function.
In this section, the video demonstrates Amplify Starter, which allows for easy project creation and initialization without needing to manually configure settings. The demo showcases a basic Flutter app with user authentication and CRUD functionality for to-do items. Users can reference various resources for further learning such as tutorials, documentation, and the source code on the presenter's GitHub.
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