sakshampathak1508 / Invoice-Generator

Invoice-Generator

Task:

Develop an application that generates invoices in fairly simple format. Format for reference can be found at the end of this task. You can make a model for items and other details as per your convenience. The application must facilitate the following API(s):

1. GET: get the list of available items with details such as (name, price, description).
2. POST: to send the list of items to buy with corresponding quantities.
3. PUT: to update the list of items in the purchase list.
4. GET: get the invoice for the purchase in pdf format as per the above format but with all the necessary details filled dynamically. Configure and deploy the application mentioned in first point to any open and free hosting service like Heroku/PythonAnywhere. Add the link to the project.

The admin panel of this app can be accessed by:

https://invoice-disecto.herokuapp.com/admin/ username: 123456 password: 123456

1. TO GET THE LIST OF ALL AVAILABLE ITEMS

    Api Path :- https://invoice-disecto.herokuapp.com/all-items/
    its a simple get request so you get all the available items
   

2. TO POST THE ITEM LIST OF SEVERAL ITEMS FOR A PARTICUALR ORDER

    Api Path :- https://invoice-disecto.herokuapp.com/item-list/
    This post request takes two things as a request data one of which is the list of items id and their quantities
    and the order name.
    
    eg: in json
    	{
    		"item_list": [{"item": 1,"quantity": 2},{"item": 2,"quantity": 4}],
    		"name": "arun"
    	}
   

3. TO UPDATE THE ITEM LIST IN AN ORDER BEFORE PLACING IT A SIMPLE PUT REQUEST

    Api Path :- https://invoice-disecto.herokuapp.com/item-list/
    This put request simply edits the list items accordingly
    
    eg: in json it takes lid as required field
    	{
    		"lid": 1,
    		"quantity": 5
    	}
   

4. GET INVOICE PDF

    Api path:- https://invoice-disecto.herokuapp.com/invoice-pdf/?oid=2
    
    it takes a parameter at the end as an order id as oid to generate an invoice of that particular order
   

Q2: Ans2:

in order to auto generate a list of products/items with low stock/expiry from the inventory database. The list must be updated at 12 A.M. daily

we need to have a field inside the model as expiry days and it needs to be sorted using the django order_by udated in the def save() function in django models.py to (expiry-datetime.datetime.date)

Items.Objects.all().order_by(expiry)

Q3: Ans3:

Post save signal can be used to send api request to another server to create that user in it's database also