Node Exam

[pedroroutaboul]

Name: Pedro Routaboul

Explain your solution

Tell us how you solved each of the excercises.

Excercise 1 - Add filter by technologyId for GET /courses endpoint

*I added the technologyId field to filterFields to enable it.
Then, i created the test and i run it *

Excercise 2 - create a GET /admin/billing/getInvoices

*I created the getInvoices function, that do a request to getChargeableStudents endpoint for get the student's info, but i spend too mucch time because i didnt know how to re-call. Finally i could do it, but i couldn't finish it *

Excercise 3 - Add Middleware for caching GET requests

It was the easier, i made the middleware that catch the information of all request GET (but not the urlSinCache), and i saved in global.cache.[req.originalUrl], it mean that first the middleware chech if he has some information in this object, and if yes, return it , and if not have any info. call next().
Also I rewrite te funtion response200 to save the response.
if it is a POST or PUT i clean the global.cache.[req.originalUrl]

Excercise 4 - create GET /stats/failuresByStates

*I find all the notes and i filter by "failed", then I get only the students ids, delete the repetitions.
I create an array whit the countries and his count.
last but not least i convert to an object and i send it by response200.

also i made the tests but i couldnt finish it *

Share your ideas about the application

• Would you change anything about how the app was designed?
  In controlles/billing my be is a good idea made an unique funtion to get the Chargeable Students, but if the idea was that they supose are in "diferents applications, it ok "
• What else would you add to it?