Check list for any back end task

check_list_backend.md

1. Tests or spec it could be unit, integration, if 3rd party APIs are involved then functional test for that API.
2. Data base -> New table or adding a column -> Migrations, default values for the column, unique constraints if needed, indexes?
3. APIs -> should they be cached? if yes based on what?, Correct response codes, correct response errors, parameter validation at the API level.
4. Models -> does it have enough validation.
5. Logging -> Do we have enough logging in place, if we're logging are we able to get alerts.
6. Database adding columns -> should we populate data
7. Renaming columns -> Are we backfilling data before we completely delete the data.
8. Task to backfill data.
9. Does it need testing by the QA or so? if yes is documentation available if no write the documentation.