filhodanuvem / api-transfer

Transfer API

This API was created based on the (DevGym)[https://app.devgym.com.br/challenges/9af13172-e1fe-4c2e-ac10-cb6b0bcf2efc] challenge

Requirements

• Create an endpoint that receives a user ID and returns their balance.
• Validate if the source user has sufficient balance before performing a transfer.
• Create an endpoint that receives two user IDs and a monetary value representing the transfer between them.
• Consider the possibility of concurrent transfers where two people transfer money to a third person at the same time.
• If a transfer fails, the balance of the source user should be restored.

Note: There is no need to create endpoints for creating users; populate the database in a way that both users exist, and transfers can be made between them.