Functional requirements

Requirement	Status	How to use it?
Takes a CSV file destination as an input.	✅	It's the default implementation. If need to change the csv file, change it in the line 58
The input can be a URL or file on machine.	✅	The readed file is already in the project. To use the local file implementation, uncomment from line line 68 to 78
Allows the consumer to pass a transformer function that will run for each row of the CSV.	✅	To create a valid transformer, create a class that implements Transformable. Pass the created instance as tranform in the second argument object in the main function
Add ability to run a hook before the file is read.	✅	To create a valid beforeHook, create a class that implements BeforeAllHook. Pass the created instance as beforeAllHook in the second argument object in the main function
Add ability to run a hook after the file is processed.	✅	To create a valid afterAllHook, create as many class as you need that implements AfterAllHook. Pass the created instance as an array afterAll in the second argument object in the main function
Capture the time it takes for the file to get processed.	✅	An abstract class called TimeTracker has the implementation. Just extends that class and call the startTimeTrack and endTimeTrack methods when needed and the variable time will have the lapse in `msà between those call.

Extra requirements

Requirement	Status
Docker	✅
Allow to run multiple after all hooks	✅

How to run the project?

• Running on StackBlitz ⚡️ ?

npx tsc 
node ./dist/index.js

• Running locally? (Needs to have docker installed)

docker build -t gd_michael . 
docker run gd_michael

Repeat again if changes are made...

Approach

Props?

1. I'm using docker so you don't need to have any specific nodejs version installed in your machine.
2. You can implements many others transformers without the need to modify the codebase.
3. You can execute as many after all hooks as you want. (ex. in the code i ran 3)

Const?

1. After all hooks does not receive the transformed data. Could be fixed forcing all transformers to return the data and modifiying the AfterAllHook to stop inheriting from Hook and receive the transformed data as arguments in the run method.

Included libraries

• csv-parse: I chose to use it to have the flexibility to parse the csv file from text into array or object. The reason i pick this one and not other that made a similar job is because of the maintance, this library has active support and the documentation is great because many people uses it.

• nodejs: I chose it because i had to have a backend languaje in order to interact with local files.