java script react native maps find markers close to a location using local db

Asked Aug 28 '18 at 08:59

Active Aug 29 '18 at 07:46

Viewed 323 times

I have an application that has a bunch or latitudes and longitudes of restaurants stored in a database,

I need to load map markers based where the map is currently focused. for example if the map is focused on a city i need to load markers only within the city/ radius.

i am using react-native-maps for the map rendering and the backend is nodejs.

edited Aug 29 '18 at 07:46

asked Aug 28 '18 at 08:59

Naveed Sheriffdeen

What is your database? Some databases (eg PostgreSQL) have good support for geo queries. – Aug 28 '18 at 18:55
i am using mysql – Naveed Sheriffdeen Aug 29 '18 at 05:05
Fair enough. If you are able to index the restaurant lat/longs in the database yourself, I suggest following something like https://stackoverflow.com/questions/42799118/mysql-find-points-within-radius-from-database. By the way, this question isn't really about react-native. – Aug 29 '18 at 07:01
ok thanks - @mrblewog – Naveed Sheriffdeen Aug 29 '18 at 07:47

java script react native maps find markers close to a location using local db

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