To setup your local dev environment:

• under dir aws-amplify-staging/
  execute yarn config set workspaces-experimental true
  execute npm run setup-dev

To test your category:

• cd <your test frontend project>
• amplify init
• amplify <your category> <subcommand>

About aws credentials and configurations

• For general configurations, the cli directly uses what the aws sdk provides. The aws sdk uses EC2 role, environmental variables and the shared config files in the directory ~/.aws/ folder, to get credentials. So no additional secrets are stored by the cli.
• If the user does not provide project specific configurations, the cli will use the general configurations for aws access.
• If the user configured project specific configurations, they override the general configurations when cli commands are executed inside the project.
• For project specific configurations, the cli stores the keys in a file (per project) in the ~/.amplify/ folder. Since it's not in the project's codebase, the file won't be accidentally checked into code repos.

Before pushing code or sending PR:

• run npm run lint at the top level directory. This invokes lerna to check for lint errors in all our packages
• eslint can fix some of the lint errors, so go into the package which has errors and run 'lint-fx'
• You might stil have some lint errors which you would have to resolve manually
• Linting your code would make sure of good code quality and practices. So please make sure to do it :)

The Amplify CLI, provides a command line interface for frontend developers to seamlessly enable and configure AWS services into their apps and manage their backend resources with the help of AWS Cloudformation templates.

• Installation
• Getting Started
• Configuration
• Commands Summary

The easiest way to install is using npm or yarn

npm install -g amplify-cli

or

yarn global add amplify-cli

To create a new Amplify project and pull the project configuration into your app, run the following command on your terminal.

cd <your-app>
amplify init

Running this command enables your Amplify project with cloud resuorces required to provision and deploy your project. By default the Amplify CLI uses AWS Cloudformation as the cloud provider. The command also adds the AWS Amplify JavaScript library to your app so you can easily integrate Analytics, as well as other features provided by AWS. These features can easily be added using the amplify cli commands below.

The current set of commands supported by the amplify CLI are

Category specific commands

1. auth (Cognito)
2. storage (S3 & DynamoDB)
3. function (Lambda)
4. api (AppSync & API Gateway)
5. analytics (Pinpoint)
6. hosting (S3 and CloudFront Distribution)

• Sign up for the AWS Free Tier to learn and prototype at little or no cost.

• Configure the CLI with your AWS credentials

amplify configure