Forum | Appery.io

I am trying to list specific messages from a database on a grid(I am building a kinda messaging app)
I want to discart some messages that dont meet a distance requirement,and only list specific messages.

(Actually my main condition is ,if the distance of two gps points is smaller than 100meter then show the messages.I know how to impement that thing on javascript but I can't find how to make that thing "play" with appery)

Hello -
ol
liIf you are using Appery.io Database, then you can make request and get only the messages you needed. More info here :: http://docs.appery.io/documentation/b.../li
liYou can add verification in mapping (and hide the messages that will not pass)
:: http://docs.appery.io/documentation/u.../li
liYou can use the Generic service and to exclude irrelevant data in it.
:: https://getsatisfaction.com/apperyio/.../li
/ol

thank you.By looking on the header of 1 ,it may not be on my situation,but 2 and 3 I hope that will help