Have problems perceived the whole phenomenon? Take the example of the Food Ordering app that you often use, that is a prime example of using user location and suggesting you the best restaurants nearby.
- GPS or Global Positioning System: GPS is regarded as the most authentic method to derive the location. The accuracy of the GPS is tracked up to 1 foot. The best part is, most of the devices have GPS in them.
- WiFi: Another convenient mode of device location is WiFi. Not only modern but traditional devices also support a WiFi connection. Despite offering a weaker connection than a Geolocation, WiFi is advantageous in devices where Geolocation is not offered or non-GPS devices.
- IP Geolocation: This option has received the last position probably because of offering the least precision. Only if the device supports neither GPS nor WiFi, there is a use of IP Geolocation.
- getCurrentPostion(): This approach is used to draw the user’s current location. The method will provide information with the help of an object that comprises the longitude, latitude, accuracy in meters, and so on.
- watchPosition(): In this approach, the user will state all about the location changes. And if any location change occurs, it will call for a function.
- clearWatch(): This technique is useful in erasing any handler attached to a watchPosition() call, and the site will not track the user if any change in location takes place.
Step 1: Geolocation API (h3)
The property named ‘navigator’ is found on the’ window’ object inside the browser. The ‘navigator’ is itself an object that further comprises a property called ‘geolocation’ which is again an additional object.
Note: You might find it suitable to wrap your code in an ‘if’ statement since not every browser backs up the Geolocation Web API.
When you will note the browser backing it, follow it up by requesting the user’s location from the Geolocation API utilizing the ‘getCurrentPosition’ function. The term ‘request’ is used since it relies on the sole user’s decision to grant permission.
Step 2: Get the Current Position
Two arguments are circling the getCurrentPosition function. These are callback functions determining the victory or defeat of the geolocation. When you notice a user approving the request to share the location, you will receive information regarding their longitude and latitude of them. You might be requiring a Geocoding service for decoding the information into real locations.
Step 3: Geocoding
One will encounter plentiful Geocoding providers. You can use any free address lookup API to translate the longitude and latitude. Once you gather your API and account keys, generate a function for a thriving callback. Post that, hook it up to the ‘getCurrentPosition’ function. You will be receiving numerous metadata but there is a ‘results’ array consisting of a specific item comprising all the location details. You will soon gather all the location details through the ‘components’ option that provides immediate entry to every trivial data.