task

[Natalia2408-forever]

https://github.com/Natalia2408-forever/node_accounting-app-v2

[mateacademy-ai-mentor]

Review Summary

Your implementation successfully meets all core requirements for the expense tracking API. You have correctly implemented both collections (users and expenses) with all 5 CRUD endpoints each, used Express.js in src/createServer.js, stored data in memory with empty initial state, and properly returned 404 for non-existent entities and 400 for invalid input across all endpoints. The createServer() function returns the app without calling app.listen(), as required. The issues identified in the review are validation edge cases rather than blocking problems. For instance, PATCH /expenses/:id could more thoroughly validate the request body against the Swagger spec, and POST /expenses accepts empty strings for note which may need explicit handling depending on spec interpretation. These are improvements you can address as you continue refining the codebase. Overall, the implementation is functional and fulfills the task specification. Well done on meeting the requirements!

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