isabella232 / geolocation-api

W3C Geolocation API

Geolocation API

Welcome to the home of the W3C's Geolocation API!

Once a user grants permission, the Geolocation API provides access to geographical location information from device.

This repository is where the friendly folks of the Devices and Sensors Working Group maintain the specification.

• Editor's draft

Examples of usage

This HTTPs-only API exposes the navigator.geolocation object with a couple of useful methods:

• .getCurrentPosition(successCallback, [errorCallback, options]) - "one shot" position request
• .watchPosition(successCallback, [errorCallback, options]) - Watch a position and get notified of any changes.
• .clearWatch(someId) - allows you to stop watching for location changes.

No location information is made available through this API without the user's permission.

.getCurrentPosition() method

Request the user's current location. If the user allows it, you will get back a position object.

navigator.geolocation.getCurrentPosition(position => {
  const { latitude, longitude } = position.coords;
  // Do something cool with latitude, longitude
});

.watchPosition() method

Request the ability to watch user's current location. If the user allows it, you will get back continuos updates of the user's position.

const watchId = navigator.geolocation.watchPosition(position => {
  const { latitude, longitude } = position.coords;
  // Do something cool with latitude, longitude
});

.clearWatch() method

Finally, stop watching the user's location.

navigator.geolocation.clearWatch(watchId);

More examples

The specification provides a great range of examples covering a diverse range of different use case.