This project it's a web API to make CRUD operations about Supermarket scenario;

This repository contains the solution implemented by the DM111 discipline from the Pos Graduation course Mobile and Cloud Development by Inatel.

During the classes was implemented a web service to deal with a minimal structure of supermarket, i.e. The CRUD operations for Products, Users (Client and Admin), Shopping Lists. But now this API has CRUD operation for Promotions and others manipulations;

To make these exposed APIs secure it was implemented an Authentication API as well using JWT token.

In addition to the auth API an Interceptor was created and all the endpoints that required the authorization was added behind this interceptor. It means, only authenticated users could access the resources and in some scenarios only authenticated and authorized users were able to perform some operations.

The current project does have the integrations with: Firebase DB, Firebase Cloud Message, Pub Sub.

In order to reduce the cost and also reduce the risk of reach the Free tier limit of U$ 300 provided by the Google Cloud I have decided to use Firebase as our main database solution. That decision helped us to reduce the number of resources required to be deployed and simplify our deployment letting us move our focus on the code itself.

You have to generate the service accounts from your Firebase project and paste into the right place, i.e.the folder src/main/resources

The following entities are stored on the Firebase:

User

{
  "email": "[email protected]",
  "id": "uuid",
  "name": "name",
  "password": "encrypted",
  "role": "ADMIN|CLIENT"
}

Products

{
  "id": "uuid",
  "name": "name",
  "amount": 0,
  "brand": "brand",
  "price": 5.99,
  "unit": "kg|lt|ml"
}

Supermarket list

{
  "id": "uuid",
  "name": "name",
  "products": [
    "product_id1",
    "product_id2"
  ]
}

Promotion

{
  "id": "uuid",
  "name": "name",
  "starting": "starting_date",
  "expiration": "expiration_date",
  "products": [
    {
      "productId": "product_id",
      "discount": 15
    }
  ]
}

In order to prepare the machine to either run or change the project follow the instructions detailed at DM111 setup instructions

To deploy the code to GAE (Google App Engine), it is necessary first initialize the gcloud environment, please run the following command:

gcloud init

During the execution of this command, it will be necessary to authenticate at the Google Cloud account. After the initialization has been completed the deployment will be straightforward you only need to execute the following command.

gcloud app deploy --version 1 dm111/app.yaml

Some data/confirmation will be requested via terminal at the end of this step and as result of the deploy the link to access the service via API will be there.

To deploy both services simultaneously, please run the following command:

gcloud app deploy --version 1 dm111/app.yaml dm111-promo/app.yaml