Python developer task

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1. Go through the assigment and read all the necessary requirements
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3. Have fun :)
4. Let us know when you're done

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Assigment - Product aggregator microservice

Create a REST API JSON Python microservice which allows users to browse a product catalog and which automatically updates prices from the offer service, provided by us:

• Swagger
• Redoc

Requirements

• Provide an API to create, update and delete products
• Periodically query the provided microservice for offers
• Provide an API to get product offers

Data model

Products - each product corresponds to a real world product you can buy.

• id - UUID
• name - string
• description - string

A product has many offers.

Offers - each offer represents a product offer being sold for a price.

• id - UUID
• price - integer
• items_in_stock - integer

Each offer belongs to one product.

Specification

Must haves:

• Use an SQL database as an internal data store; the library for the API layer is up to you
• Use an access token from sign-up to access the offers microservice - this should be done only once, all your registered products are tied to this token
• To authenticate your requests, use a Bearer: <access-token> header
• Create CRUD for products
• Once a new product is created, call the offers microservice to register it
• Your API does not need authentication
• Create a background service which periodically calls the offers microservice to request offers for your products
• Price in the offers microservice updates every minute, and offers sell out
• Once an offer sells out, it is replaced by another one
• Create a read-only API for product offers
• Base URL for the offers microservice should be configurable via an environment variable
• Write basic tests with pytest
• Add a README with information on how to start & use your service
• Push your code into git repository and send us access (our preference is gitlab.com)

You can earn extra points for:

• JSON REST API simple authentication (e.g. access-token)
• Consider adding some reasonable error handling to the API layer
• Provide a working Dockerfile and docker-compose.yml for your application for easy testing
• Use reasonable dependency management (requirements.txt, Pipenv, Poetry, ...)
• Deploy your application to Heroku
• Track the history of offer prices and create an endpoint which returns the trend in offer prices and compute the percentual rise / fall in price for a chosen period of time

That's it! Good luck, and most importantly, have fun!