FlexChange

Provides actual information for UAH/USD exchange rate Allows subsribtion to the exchange rate updates

** Unfortunately this project is not finished yet

Technical Requirements

Implement a service with API, which allows:

• acquire current exchange rate USD to UAH (the API can be extended to allow other currencies also)
• email subscription for alternations in the exchange rate

Additional Requirements:

1. Service must be implemented in appliance with described API
2. Emails have to be dispatched once a day
3. All the application data must be stored inside database. Additionally "migrations" mechanism has to be provided/implemented.
4. A Dockerfile is a requirement as well as docker-compose.yml.
5. Comments are encouraged. Description of the program logic is encouraged.
6. Properly described logic maybe an advantage in project estimation in case not all features are implemented.
7. Implementation can be provided in one of the next languages: PHP, Go, NodeJS. This is not a limitation, but there is no advantage in the choice of a language.
8. Finished project has to be published to a github repository.

Project

Requirements

For containerized application

• Docker v26.0.2
• Docker Compose v26.0.2

For local development

• Go >= v1.20
• PostgreSQL >= 14
• nodejs == 20.0.*
• npm >= 9.8.0

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Simple Frontend

This is simple frontend app composed using Next.js and Typescript

It provides bare simple interface to interact with the backend through UI in the browser

• Proceed with frontend documentation

Backend

This app is written in Go and provides backend API service.

As well as a CLI Crontab app to perform routine tasks

• Proceed with backend documentation