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@@ -92,3 +92,36 @@ MongoDB before and felt comfortable with its JSON-like syntax. I was set on lear SQL, but that was going to take some time and I did not want to wait until I learned it to start the project. Now that I am taking the [Databases](https://www.colorado.edu/program/data-science/databases) specialisation though, if I were to redo the project I would definitely use SQL. + +## Requirements + +### User requirements + +1. The user should be able to add subscriptions using their YouTube URLs (channels +or playlists). +2. The user should be able to set and modify the duration between fetches for each +subscription (some may upload more frequently than others). +3. The user should be able to delete subscriptions. +4. The user should be able to see the videos of each subscription along with the +duration of each video. +5. New videos (added since last time viewed) should be indicated to the user. + +### System requirements + +1. The application should be able to verify valid YouTube URLs. +2. The application should be able to identify valid subscription. +3. The application should be able to convert channel/playlist URLs to feed links. +4. The flask application should have CRUD APIs set up. +5. The data collector should be able to fetch each subscription with the appropriate +interval between fetches (set duration + <= 60s). +6. The data collector should be able to identify new/updated videos. +7. The data analyser should update all non-analysed videos in each iteration. +8. The data analyser should get the correct duration (as long as the video is not +private for example). +9. The database (MongoDB in this example) should store the data persistently. +10. The React.js application should be able to correctly communicate with the appropriate +APIs from the flask application. + +All of these are easy to test. That being said, some of them, like 5., would take +a considerable time to test, even for an integration test. For the purpose of this +project, only tests taking under a minute were allowed into the integration test. |