Cashback System

Calculates the cashback amount for each purchase from a reseller

Some concepts and technologies used

• Node.js
• Express with middleware
• MongoDB with Mongoose
• Docker and Docker Compose
• External request with node-fetch
• Cursor-based pagination without external library
• Basic and JWT authentication strategies with Passport
• Application logs with Winston

Prerequisites

• Docker 18.06.0+
• Docker-Compose
• Make

To check if the prerequisites are installed, just use the following commands:

docker -v
docker-compose -v
make -v

Test

Just run npm test

Usage

1. Run make from root project

2. Create a reseller

   curl -X POST \
   -d '{
         "email": "marcus@gmail.com",
         "password": "12345678",
         "cpf": "12345678901",
         "full_name": "Marcus"
       }' \
   localhost:3001/resellers

3. Authenticate as reseller. This will generate a JWT token as response

   curl -X POST --user 12345678901 localhost:3001/resellers/auth

   The password will be prompted

4. Create a purchase. Replace TOKEN with the token generated in step 3

   curl -X POST -H "Authorization: Bearer TOKEN" \
   -d '{
         "code": "546",
         "data": "2020/04/10",
         "amount": 100000
       }' \
   localhost:3001/resellers/12345678901/purchases

5. Get purchases. Replace TOKEN with the token generated in step 3

   curl -X GET -H "Authorization: Bearer TOKEN" localhost:3001/resellers/12345678901/purchases

   The query params next and previous can be used to navigate between pages. Default page size is 5

6. Get cashback amount. Replace TOKEN with the token generated in step 3

   curl -X GET -H "Authorization: Bearer TOKEN" localhost:3001/resellers/12345678901/purchases/cashback