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Tax Management System

Django, Docker, Heroku, Djangorestframwork, Postgresql

BACKEND

Library Used

  • Django
  • djangorestframework
  • psycopg2-binary
  • djangorestframework-simplejwt
  • drf-yasg

Why choose Django and Postgresql (For Backend)?

Django is the one of the most popular web framework for python, Django takes care of much of the hassle of web development, so you can focus on writing your app without needing to reinvent the wheel. As for Postgresql it works well with Django and also preferable for the assignment as mentioned here.

INSTALLATION && USAGE (DOCKER)

No need to worry about installation, if docker and docker-compose is not installed in your system please install and follow along the step(s).

  • Git Clone this repo and enter into the TaxManagementSystem directory.

  • Create

    • a file 'django-env' with content 
      debug=<>
secret_key=<>
postgres=<>
DB_HOST=<>
DB_NAME=<>
DB_USER=<>
DB_PASS=<>
DB_PORT=<>
      reffer this file here.
    • a file 'pgdb-env' with content 
      POSTGRES_DB=<>
POSTGRES_USER=<>
POSTGRES_PASSWORD=<>
      reffer this file here.

  • Run the command docker-compose up --build. And it should be up and running. Checkout the endpoints mentioned below. Note test case and will be run and created.

  • To run test case, docker-compose exec backend python manage.py test. Note test case automatically run during execution of previous command docker-compose up --build.

  • To create admin user, docker-compose exec backend python manage.py createsuperuser.

  • Testcase is added to in docker entrypoint.sh. You can manually run docker-compose exec backend python manage.py test

DEPLOYED (HEROKU)

Application is deployed on heroku, link of the url is https://agile-savannah-29634.herokuapp.com/ it will work similar to docker container. And admin config are email:[email protected] and password: admin required for accessing admin panel <BASE_URL>/admin/.

Admin Panel

  • Django provide built-in admin panel can be access from localhost:8000/admin url.
  • If you used docker-compose up --build then admin user will be created by docker-compose exec backend python manage.py createsuperuser. Otherwise create using python manage.py createsuperuser
  • Use django admin panel to manipulate user and tax models.

Preview

image image

Swagger UI

You can access swagger api docs from <BASE_URL>/swagger/. I have added custom swagger ui material.

image

API ENDPOINTS

BASE_URL: /api/users

To get Login

Request

POST <BASE_URL>/login/

Body: {'email': '[email protected]', 'password':'passwd123'}

Response

{
  "refresh": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ0b2tlbl90eXBlIjoicmVmcmVzaCIsImV4cCI6MTYyODY5ODMyNywianRpIjoiN2Y2YmNiZWIwMzY4NDQ5OWIzZDE3NjNkYTVmNThkZTQiLCJ1c2VyX2lkIjoiNjIyNThlM2YtMGVmYy00N2JkLTk4ZTEtODUyNTBjMWVlZmI5In0.1zK-oOrRXTv2DnarY8ax9mldrnaQg9G67QqHTnTjJv0",
  "access": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ0b2tlbl90eXBlIjoiYWNjZXNzIiwiZXhwIjoxNjMxMjAzOTI3LCJqdGkiOiJmMWVhMmMzNzQ5ZWE0ODQ1OWIxY2ZkNzJiMjIxMDQ4NCIsInVzZXJfaWQiOiI2MjI1OGUzZi0wZWZjLTQ3YmQtOThlMS04NTI1MGMxZWVmYjkifQ.hxuesV0-Y_aq6xVWZRYLj1Dz1xnRGuAvpO5QzOyNYj4",
  "id": "62258e3f-0efc-47bd-98e1-85250c1eefb9",
  "email": "[email protected]",
  "username": "admin",
  "user_type": "admin",
  "state": "",
  "date_joined": "2021-08-08T21:10:46.700375+05:30",
  "token": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ0b2tlbl90eXBlIjoiYWNjZXNzIiwiZXhwIjoxNjMxMjAzOTI3LCJqdGkiOiI4MGViZjZjOTIwNzY0NmNlYTQzNDUyMzI2NWViMmYxOSIsInVzZXJfaWQiOiI2MjI1OGUzZi0wZWZjLTQ3YmQtOThlMS04NTI1MGMxZWVmYjkifQ.OGOqm1PZPCWDBM_ykwyjHicwrT4ksPN5O0BgGWKXulE"
}

Preview

image

To get register tax-accountant

Request

POST <BASE_URL>/register/tax-accountant/
Body: { "username":"tax_accountant_1", "email":"[email protected]", "password":"tax_accountant_1" }

Response

{
  "id": "fca6b3b4-2645-4852-948a-7f51efd1dc87",
  "email": "[email protected]",
  "username": "tax_accountant_1",
  "user_type": "tax-accountant",
  "state": "",
  "date_joined": "2021-06-29T17:21:48.585464Z",
  "token": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ0b2tlbl90eXBlIjoiYWNjZXNzIiwiZXhwIjoxNjI3NTc5MzA5LCJqdGkiOiI5ZGY4NDkzMGE3ZGI0YzZhYjg2MTVlZGM3MmY3ZmQ3YyIsInVzZXJfaWQiOiJmY2E2YjNiNC0yNjQ1LTQ4NTItOTQ4YS03ZjUxZWZkMWRjODcifQ.7cee-lCqquKTHDl0MXK0i9tFjG0FQp6oFVl8l1e5QeU"
}

Preview

image

To get register customer

Request

POST <BASE_URL>/register/tax-payer/
Body: { "username":"tax_payer_1", "email":"[email protected]", "password":"tax_payer_1" }

Response

{
  "id": "0d1739ea-ba36-4d1b-add5-e34045a76be5",
  "email": "[email protected]",
  "username": "tax_payer_1",
  "user_type": "tax_payer_1",
  "state": "",
  "date_joined": "2021-06-29T17:24:43.532383Z",
  "token": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ0b2tlbl90eXBlIjoiYWNjZXNzIiwiZXhwIjoxNjI3NTc5NDgzLCJqdGkiOiI1MTBhMzRlNjIwNTc0ZTg5YTZkYmIzOWFkYjY2MjliNCIsInVzZXJfaWQiOiIwZDE3MzllYS1iYTM2LTRkMWItYWRkNS1lMzQwNDVhNzZiZTUifQ.OwrAsVp9CuMzGOG0GMNejlYI6I-WEj5FQkjGSuhGEF4"
}

Preview

image

To get list of user

Request

GET <BASE_URL>/list/
Header: { 'Authorization':'Bearer <TOKEN>' }

Response

Response will be different for different user base on token.

[
  {
    "id": "b2bc4f19-42c2-4169-873e-9d8fe8282cda",
    "email": "[email protected]",
    "username": "sample",
    "first_name": null,
    "last_name": null,
    "user_type": "tax-payer",
    "state": "Bihar",
    "date_joined": "2021-08-10T19:35:42.024118+05:30"
  },
  {
    "id": "8d5bcc5c-f050-412b-9d79-41f62784bd84",
    "email": "[email protected]",
    "username": "tax-payer-3",
    "first_name": null,
    "last_name": null,
    "user_type": "tax-payer",
    "state": "",
    "date_joined": "2021-08-08T21:43:00.899768+05:30"
  },
  {
    "id": "e91bad56-c4b9-42ce-ae68-c645e6b166a9",
    "email": "[email protected]",
    "username": "tax-accountant-1",
    "first_name": null,
    "last_name": null,
    "user_type": "tax-accountant",
    "state": "",
    "date_joined": "2021-08-08T21:31:03.586683+05:30"
  },
  {
    "id": "6af0da57-5806-46ed-b5f1-4089861d328e",
    "email": "[email protected]",
    "username": "tax-accountant-2",
    "first_name": null,
    "last_name": null,
    "user_type": "tax-accountant",
    "state": "",
    "date_joined": "2021-08-10T22:04:58.542297+05:30"
  },
  {
    "id": "566a1d36-f6f9-4382-b4a5-61b01dd16ea8",
    "email": "[email protected]",
    "username": "tax-payer-2",
    "first_name": null,
    "last_name": null,
    "user_type": "tax-payer",
    "state": "Goa",
    "date_joined": "2021-08-08T21:28:16.223335+05:30"
  },
  {
    "id": "2a370b8e-2c92-4519-ad55-14ef070b12cf",
    "email": "tax-payer-1",
    "username": "tax-payer-1",
    "first_name": "first",
    "last_name": "last",
    "user_type": "tax-payer",
    "state": "Jharkhand",
    "date_joined": "2021-08-08T21:31:11.228430+05:30"
  }
]

Preview

image

To get user

Request

GET <BASE_URL>/<uuid:id>/
Header: { 'Authorization':'Bearer <TOKEN>' }

Response

{
  "id": "b2bc4f19-42c2-4169-873e-9d8fe8282cda",
  "email": "[email protected]",
  "username": "sample",
  "first_name": null,
  "last_name": null,
  "user_type": "tax-payer",
  "state": "Bihar",
  "date_joined": "2021-08-10T19:35:42.024118+05:30"
}

Preview

image

To edit user

Request

PUT <BASE_URL>/<uuid:id>/
Body: { "username":"tax_payer_1", "email":"[email protected]", "password":"tax_payer_1", "first_name":"tax_payer_1 update", "last_name":"tax_payer_1 last", "state": "Goa" }
Header: { 'Authorization':'Bearer <TOKEN>' }
Note add state in user otherwire tax will not work.

Response

{
  "id": "2f837973-6f08-4ff0-8d18-12f791d30504",
  "email": "[email protected]",
  "username": "tax_payer_1",
  "first_name": "tax_payer_1 update",
  "last_name": "tax_payer_1 last",
  "user_type": "tax_payer_1",
  "date_joined": "2021-06-27T15:26:04.635540Z"
}

Preview

image

To list of state

Request

GET <BASE_URL>/state_list/
Header: { 'Authorization':'Bearer <TOKEN>' }

Response

[
  "Andhra Pradesh",
  "Arunachal Pradesh",
  "Assam",
  "Bihar",
  "Chhattisgarh",
  "Goa",
  "Gujarat",
  "Haryana",
  "Himachal Pradesh",
  "Jharkhand",
  "Karnataka",
  "Kerala",
  "Madhya Pradesh",
  "Maharashtra",
  "Manipur",
  "Meghalaya",
  "Mizora",
  "Nagaland",
  "Odisha",
  "Punjab",
  "Rajasthan",
  "Sikkim",
  "Tamil Nadu",
  "Telangana",
  "Tripura",
  "Uttar Pradesh",
  "Uttarakhand",
  "West Bengal",
  "Andaman and Nicobar Island",
  "Chandigarh",
  "Dadra and Nagar Haveli and Daman and Diu",
  "Delhi",
  "Ladakh",
  "Lakshadweep",
  "Jammu and Kashmir",
  "Puducherry"
]

Preview

image

BASE_URL: /api/tax

To create tax

Request

POST <BASE_URL>/create/
Header: { 'Authorization':'Bearer <TOKEN>' }
Body: { 'income': 100000, 'deadline':'2021/08/20', 'tax_accountant': 'tax_accountant_1', 'tax_payer': 'tax_payer_1'}

Response

Only tax-accountant type user is allowed

{
  "id": 17,
  "income": 150000,
  "status": "NEW",
  "tax_amount": 0,
  "tax_accountant": "tax_accountant_1",
  "tax_payer": "tax_payer_1",
  "created_at": "2021-08-10T22:40:10.879332+05:30",
  "updated_at": "2021-08-10T22:40:11.043337+05:30",
  "deadline": "2021-08-20T00:00:00+05:30",
  "fines": 0,
  "total_amount": 0,
  "payment_status": false,
  "payment_date": null
}

Preview

image

To get list of tax

Request

GET <BASE_URL>/list/?status=<new|paid|delayed>&created_at='yyyy/mm/dd'&updated_at='yyyy/mm/dd'
Header: { 'Authorization':'Bearer <TOKEN>' }

Response

Response result different for different user.

[
  {
    "id": 15,
    "income": 250001,
    "status": "NEW",
    "tax_amount": 30000.12,
    "tax_accountant": "tax-accountant-2",
    "tax_payer": "tax-payer-1",
    "created_at": "2021-08-10T20:57:24.662578+05:30",
    "updated_at": "2021-08-10T23:00:05.529047+05:30",
    "deadline": "2021-07-21T21:03:39+05:30",
    "fines": 0,
    "total_amount": 30000,
    "payment_status": false,
    "payment_date": null
  },
  {
    "id": 14,
    "income": 56000,
    "status": "NEW",
    "tax_amount": 0,
    "tax_accountant": "tax-accountant-1",
    "tax_payer": "",
    "created_at": "2021-08-09T23:04:51.759259+05:30",
    "updated_at": "2021-08-10T23:00:52.665686+05:30",
    "deadline": null,
    "fines": 0,
    "total_amount": 0,
    "payment_status": false,
    "payment_date": null
  }
]

Preview

image

To edit tax

Request

PUT <BASE_URL>/edit/<int:id>
Header: { 'Authorization':'Bearer <TOKEN>' }
Body: { "income": 60000, "deadline": "2022/10/12", "status":"delayed", "tax_payer": "tax_payer_1" }

Response

Only tax-accountant type use can edit

{
  "id": 17,
  "income": 60000,
  "status": "DELAYED",
  "tax_amount": 0,
  "tax_accountant": "tax_accountant_1",
  "tax_payer": "tax_payer_1",
  "created_at": "2021-08-10T22:40:10.879332+05:30",
  "updated_at": "2021-08-10T22:40:11.043337+05:30",
  "deadline": "2021-08-20T00:00:00+05:30",
  "fines": 0,
  "total_amount": 0,
  "payment_status": false,
  "payment_date": null
}

Preview

image

To list of tax history

Request

GET <BASE_URL>/list/<int:id>/history/
Header: { 'Authorization':'Bearer <TOKEN>' }

Response

admin and tax-accountant type use can edit

{
  "history": [
    {
      "id": 14,
      "income": 56000,
      "status": "NEW",
      "tax_amount": 0,
      "created_at": "2021-08-09T17:34:51.759259Z",
      "updated_at": "2021-08-10T17:30:52.665686Z",
      "deadline": null,
      "fines": 0,
      "total_amount": 0,
      "payment_status": false,
      "payment_date": null,
      "tax_accountant_id": "e91bad56-c4b9-42ce-ae68-c645e6b166a9",
      "tax_payer_id": null,
      "history_id": 82,
      "history_date": "2021-08-10T17:30:52.666224Z",
      "history_change_reason": null,
      "history_type": "~",
      "history_user_id": "62258e3f-0efc-47bd-98e1-85250c1eefb9"
    },
    {
      "id": 14,
      "income": 56000,
      "status": "NEW",
      "tax_amount": 0,
      "created_at": "2021-08-09T17:34:51.759259Z",
      "updated_at": "2021-08-10T17:03:49.481736Z",
      "deadline": null,
      "fines": 0,
      "total_amount": 0,
      "payment_status": false,
      "payment_date": null,
      "tax_accountant_id": "e91bad56-c4b9-42ce-ae68-c645e6b166a9",
      "tax_payer_id": "2a370b8e-2c92-4519-ad55-14ef070b12cf",
      "history_id": 75,
      "history_date": "2021-08-10T17:03:49.482729Z",
      "history_change_reason": null,
      "history_type": "~",
      "history_user_id": "62258e3f-0efc-47bd-98e1-85250c1eefb9"
    }
  ]
}

Preview

image

To payment for tax

Request

GET <BASE_URL>/payment/<int:id>/
Header: { 'Authorization':'Bearer <TOKEN>' }
Body: {'payment':'1000'}

Response

Only tax-payer user type allowed

Preview

image

About

Django Tax management system API, with swagger and redoc

agile-savannah-29634.herokuapp.com/

Topics

heroku django django-rest-framework swagger jwt-authentication management-system redoc

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