Need iOS Swift Help With An App (GPS, etc)

First I need you to help me via screenshare because I cannot share the XCode files. I think it should be fairly quick and easy for someone because I can almost do it myself. 1. I need to pass the users GPS coordinates back to my API - I have an endpoint already and I think we save the user coords to a user default so this should be easy. 2. There's something crashing my home page and I think I know what it is. I think we are trying to assign a location ID to a user default before the user even chooses a location. This probably should be an easy fix because we just need to remove this, but then we DO want to set it after a Location is clicked on/chosen. 3. My app was originally set up to load some locations then a search filter at the top filters through those but I now have 300,000 locations so I want to make it so the search sends the entered text to an API endpoint where I'll return some possible matching locations that the user can then choose from (which we can use my existing locations search page to handle all this). Thanks! Ps - I'm a novice App developer but very good at APIs so I make all the APIs for a lot of Apps