FAST-BANK BACKEND

Project Description 🌐

RESTFUL API for a digital bank, demonstrating knowledge in backend development, HTTP protocols, authentication and authorization, REST design, MVC architecture and application of business rules

Main Requirements

• Endpoints protected by JWT authentication;
• Creating new users and accounts (Natural and Legal);
• Apply for card and loans upon approval;
• Allow transfers between existing accounts;
• Allow installments of purchases;
• Allow installments payment;
• Transaction history;

Used Technologies 💻📚

• Python 🐍
• Django
  • Django REST Framework
  • Djoser
  • Jazzmin
• Docker 🐳
• Insomnia

Executing the project

Setup the environment variables according to .env.example

IP = ''
PORT = ''

SECRET_KEY = ''

DEBUG = ''

ALLOWED_HOSTS = ''

DB_ENGINE = ''
POSTGRES_DB = ''
POSTGRES_USER = ''
POSTGRES_PASSWORD = ''
POSTGRES_HOST = ''
POSTGRES_PORT = ''

Run the command below to generate de Django Secret Key

python -c "from django.core.management.utils import get_random_secret_key; print(get_random_secret_key())"

With Docker conatiners 🐳

docker-compose build
docker-compose up

or with virtual environment

py -m venv .venv
.venv\Scripts\activate
pip install -r requirements.txt

Run the server and populate

py client.py

This command does everything you need to prepare the django environment: - makemigrations - migrate - runserver - create superuser - database population

ENDPOINTS 🏁

If endpoint has authorization=True use {"Authorization": "Bearer <jwt.access>"}

USERS

authorization=False

/api/v1/auth/users/

POST METHOD

{
  "register_number": <int>,
  "picture": "<str>",
  "password": "<str>"
}

JWT

authorization=False

/api/v1/auth/jwt/create/

POST METHOD

{
  "register_number": <int>,
  "password": "<str>"
}

RETRUN EXAMPLE

{
  "refresh": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9",
  "access": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"
}

You need the {"access": "jwt"}

NATURAL PEOPLE

authorization=True

/api/v1/natural-people/

POST METHOD

{
  "user": <user_RN_fk>,
  "name": "<str>",
  "birth_date": "<yyyy-mm-dd>",
  "cpf": "<str>",
  "rg": "<str>",
  "social_name": "<str>"
}

LEGAL PEOPLE

authorization=True

/api/v1/legal-people/

POST METHOD

{
  "user": <user_RN_fk>,
  "fantasy_name": "<str>",
  "establishment_date": "<yyyy-mm-dd>",
  "cnpj": "<str>",
  "municipal_registration": "<str>",
  "state_registration": "<str>",
  "legal_nature": "<str>"
}

ADDRESSES

authorization=True

/api/v1/addresses/

POST METHOD

{
  "user": <user_RN_fk>,
  "street": "<str>",
  "number": "<str>",
  "neighborhood": "<str>",
  "city": "<str>",
  "state": "<str>",
  "cep": "<str>"
}

EMAILS

authorization=True

/api/v1/emails/

POST METHOD

{
  "user": <user_RN_fk>,
  "email": "<email>"
}

PHONES

authorization=True

/api/v1/phones/

POST METHOD

{
  "user": <user_RN_fk>,
  "area_code": "<str>",
  "prefix_number": "<str>",
  "phone_number": "<str>"
}

ACCOUNTS

authorization=True

/api/v1/accounts/

POST METHOD

{
  "type": "<str>"
}

The value for "type" needs to be "Savings" or "Current"

GET METHOD

{
    "user": [
      654321
    ],
    "agency": 1,
    "number": 1112,
    "type": "Current",
    "balance": "275.25",
    "credit_limit": "500.00",
    "is_active": true
}

INVESTMENTS

authorization=True

/api/v1/investments/

POST METHOD

{
  "type": "<str>",
  "contribution": <float>,
  "admin_fee": <float>,
  "period": "<yyyy-mm-dd>", 
  "risc_rate": <float>,
  "profitability": <float>,
  "is_active": <boolean>
}

GET METHOD

{
  "id": 1,
  "type": "LCA",
  "contribution": "135.25",
  "admin_fee": "1.50",
  "period": "2030-12-11",
  "risc_rate": "2.30",
  "profitability": "15.60",
  "is_active": true
}

ACCOUNTS INVESTMENTS

authorization=True

/api/v1/account-investments/

POST METHOD

{
  "id_account": <account_fk>,
  "id_investment": <investment_fk>
}

GET METHOD

For GET Method need to pass the query parameter "?account=<account_number>"

{
  "id_account": 1111,
  "id_investment": 1
}

INSTALLMENTS

authorization=True

GET METHOD

GET all installments

For GET Method need to pass the query parameter "?account=<account_number>"

{
  "id": 1,
  "id_account": 1111,
  "number": "1",
  "expiration_date": "2023-10-18",
  "payment_date": null,
  "payment_amount": "419.53",
  "paid": false
}

GET installment final amount

For GET Method need to pass the query parameter "?account=<account_number>&final=true"

{
  "Installment final amount": 927.45
}

CARDS

authorization=True

/api/v1/cards/

POST METHOD

{
  "id_account": <account_fk>
}

GET METHOD

For GET Method need to pass the query parameter "?account=<account_number>"

{
  "id_account": 1111,
  "number": "570054397143",
  "expiration_date": "2027-06-22",
  "flag": "Mastercard",
  "verification_code": "843",
  "is_active": true
}

CARDS TRANSACTIONS

authorization=True

/api/v1/card-transactions/

POST METHOD

{
  "id_account": <account_fk>,
  "id_card": <card_fk>,
  "amount": <float>
}

LOANS

authorization=True

/api/v1/loans/

POST METHOD

{
  "id_account": <account_fk>,
  "amount_request": <float>,
  "installment_amount": <int>,
  "observation": "<str>"
}

GET METHOD

For GET Method need to pass the query parameter "?account=<account_number>"

{
  "id_account": 1111,
  "request_date": "2023-10-11",
  "amount_request": "1459.25",
  "interest_rate": "15.00",
  "installment_amount": 4,
  "observation": "personal use"
}

PIX

authorization=True

/api/v1/pix/

POST METHOD

{
  "id_account": <account_fk>,
  "id_receiver_account": <account_fk>,
  "amount": <float> 
}

STATEMENT

authorization=True

/api/v1/statements/

GET METHOD

For GET Method need to pass the query parameter "?account=<account_number>"

{
  "id_account": <int>,
  "transaction_type": "<str>",
  "amount": <float>,
  "balance": <float>,
  "created_at" <yyyy-mm-dd>
}