Transactions API Rest
Implement and design a simple REST API
Description
We need to a simple API that allow us to register users' transactions and have an overview of how are they using their money. To do so, we want you to implement a REST API that:
- Can create users by receiving: name, email and age.
Example:
{"name": "Jane Doe", "email": "[email protected]", "age": 23}
-
List all users and also and see the details of a specific user.
-
Can save users' transactions. Each transaction has: reference (unique), account, date, amount, type and category.
Example:
{"reference": "000051", "account": "S00099", "date": "2020-01-13", "amount": "-51.13", "type": "outflow", "category": "groceries"}
Constraints:
- A transaction reference is unique.
- There are only two type of transactions: inflow and outflow.
- All outflow transactions amounts are negative decimal numbers.
- All inflow transactions amounts are positive decimal numbers.
- We expect to receive transactions in bulk as well.
- The transactions we receive could be already in our system, thus we need to avoid duplicating them in our database.
Goals
- Given an user id, we want to be able to see a summary by account that shows the balance of the account, total inflow and total outflows. It should be possible to specify a date range, if no date range is given all transactions should be considered.
Input:
[
{"reference": "000051", "account": "C00099", "date": "2020-01-03", "amount": "-51.13", "type": "outflow", "category": "groceries"},
{"reference": "000052", "account": "C00099", "date": "2020-01-10", "amount": "2500.72", "type": "inflow", category": "salary"},
{"reference": "000052", "account": "C00099", "date": "2020-01-10", "amount": "-150.72", "type": "outflow", category": "transfer"},
{"reference": "000054", "account": "C00099", "date": "2020-01-13", "amount": "-560.00", "type": "outflow", "category": "rent"},
{"reference": "000689", "account": "S00012", "date": "2020-01-10", "amount": "150.72", "type": "inflow", "category": "savings"},
]
Output:
[
{"account": "C00099", "balance": "1738.87", "total_inflow": "2500.72", "total_outflow": "-761.85"},
{"account": "S00012", "balance": "150.72", "total_inflow": "150.72", "total_outflow": "0.00"},
]
- Given an user id, we want to be able to see a summary by category that shows the sum of amounts per transaction category:
Input:
[
{"reference": "000051", "account": "C00099", "date": "2020-01-03", "amount": "-51.13", "type": "outflow", "category": "groceries"},
{"reference": "000052", "account": "C00099", "date": "2020-01-10", "amount": "2500.72", "type": "inflow", category": "salary"},
{"reference": "000052", "account": "C00099", "date": "2020-01-10", "amount": "-150.72", "type": "outflow", category": "transfer"},
{"reference": "000054", "account": "C00099", "date": "2020-01-13", "amount": "-560.00", "type": "outflow", "category": "rent"},
{"reference": "000689", "account": "S00012", "date": "2020-01-10", "amount": "150.72", "type": "inflow", "category": "savings"},
]
Output:
{"inflow": {"salary": "2500.72", "savings": "150.72"}, "outflow": {"groceries": "-51.13", "rent": "-560.00", "transfer": "-150.72"}}
Run
docker-compose up -d --build
Check the API with http://127.0.0.1:8000/_check
Documentation
Tests
docker-compose exec api pytest -vvv .
4 Jul 23, 2022
1 Nov 08, 2021
5 Dec 31, 2021
9 May 08, 2022
782 Dec 31, 2022
212 Dec 24, 2022
62 Oct 10, 2022
76 Nov 25, 2022
222 Jan 04, 2023
4.4k Dec 30, 2022
20.4k Jan 04, 2023
602 Jan 05, 2023
77 Nov 03, 2022
2.2k Jan 04, 2023
5 Sep 19, 2022
3 Jan 23, 2022
27 Jan 07, 2023
1 Nov 17, 2022
2 Nov 30, 2022
2 Jan 02, 2022