Need Help Implementing Location-Based Filters on a Used Car Sales Website

I am working on developing a website that lists used cars for sale, and I require guidance on how to add location-based filters for buyers and sellers.

The website’s most critical feature is to enable buyers to filter car listings by location, specifically by city, region/state, or country. Additionally, sellers should be able to select the location for their listings when creating them, so buyers can easily find cars in their preferred location.

As a developer, I am unsure about the best way to implement this feature. I am considering using a local database of locations or integrating Google API or a similar service to create an extensive location database.

I would appreciate any advice or suggestions on how to develop location-based filters that are user-friendly and easy for both buyers and sellers to use. Thank you for your help!

If you are using postgres, you will probably want to look into using postgis. From the home page.

PostGIS is a spatial database extender for PostgreSQL object-relational database. It adds support for geographic objects allowing location queries to be run in SQL.

Which is exactly what you are asking for.

If you are using another database, I am sure there are similar extensions. But I have no idea what they are.

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