Let's put to production AWS Cognito for a special react native application

Hi! Be ready to challenge yourself! The "classical use" of AWS if not what we need (this is not a tutorial). We need a curious and tough expert that has experiences in AWS or that is ready to read the full AWS documentation and spend time on every available tutorial and available resources to accomplish his goals. The proposed project is mainly about setting up AWS Cognito for a mobile application that already uses React Native. Currently, we have a React Native application that can handle OAuth2 authentication to Fb accounts using an FB login button. The user clicks then connects to his Fb account, then the AccessToken and some user data are stored encrypted in the device. Currently, the react native mobile application does not authenticate to our AWS backend. We need your talent in order to create and configure perfectly the AWS backend that should include AWS API gateway, AWS Cognito and an AWS SNS to push a simple demo notification to the mobile devices. You might also need to setup a simple AWS Dynamo DB. ____________ The specifications are specials, so, please read them carefully. You will: - write a 2-pages report that includes your solution; - put to production the authentication service. ** The app has no authentication form, no username/password. There are several buttons such as FB login buttons that leverage the FB OAuth2 authentication. You can use the AccessToken and some basic account related data that are given by FB after the user clicks. You should configure our AWS Cognito so that it works in that specific case; ** Plus, for a particular device, our AWS backend authenticates several connected FB accounts at the same time. E.g. device1 authenticates fbaccount1, fbaccount2 at the same time and device2 authenticates fbaccount2, fbaccount3; - put to production an AWS SNS that pushes notifications to all the devices that have been authenticated with the specific users the notification is relevant for. E.g. an AWS SQS stores sample data relevant for fbaccounts3 and device1 and device2 receive the data; - setup some tests to ensure that the solution is working for several devices, accounts and so on. In short, you take care of the AWS configuration part for Cognito, Gateway, SNS and we take care of the React Native part. If you have some difficulties understanding this part, and you need more details, please let us know in your bid details; ___________ A use case for the app “TheApp” might be useful to properly understand our needs. For example, a user is using two smartphones and a tablet. Plus, he has 3 Fb accounts, “fbaccount1”, 2, and 3. He opens TheApp using his first phone and clicks on a Fb login button. He connects to “fbaccount1”. The app should authenticate this fbaccount1 to the AWS Cognito + Gateway backend. Plus, using the same fbaccount1, the user authenticates using his second phone and his tablet. Then, we put some data in an AWS SNS that contains fbaccount1 id. Then the SNS should notify EVERY device that authenticated with fbaccount1. That is, two phones and the tablet, in this case, receive notifications. But of course, do not notify other devices (do not notify grandma’s smartphone). Finally, the user has more than one FB account. In fact, he has 3 different FB accounts. The app should authenticate at the same time to the three accounts if the user wants it. ___________ Let us know in your bid whether you are 100% sure you can manage the specifications and how easy it is according to your background. We already have some experts in React Native, and Java in our team, so please don't be afraid if you are not familiar with JavaScript, nor in Java. Any questions? Feel free to ask, we will be delighted to answer you. A.