Added endpoint to get latest ads from a cursor (last_id)

[eydine]

No description provided.

[Lejo1]

This wont do what you would like to. This allows you to go through all ads in inverse order of the ad_id. This ad_id is in no way related to the time of the ads being published.
The kinda dirty way the latest ads are returned is by using the natural order in reverse, just meaning: Reading the database from the end. Therefore new or largely changed ads will always be there, allowing the query to return the current ads.
I think the best way would be some query by the ad_creation_time, it also got a indice.
I quickly created an endpoint for it: GET /adsbydate/date?offset=0&limit=0
As of the amount of ads per day, the offset shouldn't get to high to hit the timeout. Also you shouldn't have such the problem of the moving position of the cursor when crawling older dates.
Let me know, if this works for you!

FYI, these are the current indices:

New ones are of course possible!

[eydine]

Thanks man, this is actually insanely helpful