How can you locate a device that's offline or has no GPS? Discover how telco APIs can verify location with a simple true or false.
#1about 2 minutes
Understanding location verification without using GPS
Location verification uses the mobile network to confirm a device's presence in an area, which is useful for offline devices or those without GPS chips.
#2about 2 minutes
Designing a sightseeing app without GPS
The app architecture consists of a server with a list of cities and a mobile client that sends a phone number for verification.
#3about 4 minutes
Using curl to make the location verification API call
A POST request is sent to the telco API with the phone number (MSISDN) and geographic coordinates to check if the device is within a specified radius.
#4about 3 minutes
Finding nearby sights using the Google Places API
Once a city is confirmed, the server queries the Google Places API with the city's coordinates to retrieve a list of local points of interest.
#5about 6 minutes
Building the frontend with Kotlin Multiplatform
Kotlin Multiplatform (KMP) enables a shared codebase for business logic and UI across different platforms like Android, iOS, and web.
#6about 2 minutes
Understanding the ecosystem of modern Telco APIs
Industry initiatives like Camara and Open Gateway are standardizing how developers access network capabilities through open, accessible APIs.
#7about 4 minutes
Getting started and key API considerations
To use these APIs, developers can sign up on telco portals, but must handle user consent for location verification and be aware of limitations like network roaming.
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