Hello there,
A few users struggle with this project, because the instructions are not as specific as the tests. So, one useful thing you can do is have a look at the tests: https://github.com/freeCodeCamp/freeCodeCamp/blob/master/curriculum/challenges/english/05-apis-and-microservices/apis-and-microservices-projects/exercise-tracker.english.md
They are just written in JavaScript. So, have a look at what they are looking for.
Some things to look out for:
- They are looking for
duration
to be a number - They are looking for
_id
to be specifically anIdObject
(this was taught in the lessons)
Hope this helps