What is the best way to extract longitude and latitude from a string using Angular 4 TypeScript?

Question

What is the best way to extract longitude and latitude from a string using Angular 4 TypeScript?

Currently I am diving into the world of Angular 4 and experimenting with Google Maps integration. I came across a helpful tutorial on how to incorporate Google Maps into my project successfully. However, I now face a new challenge. I have strings of addresses stored in my database, such as "London", and I need to show markers on those specific locations. Can anyone guide me on how to retrieve the longitude and latitude for a given string address so that I can accurately place markers?

I have searched through various resources but have not found a solution that converts a string into longitude and latitude values. Any assistance would be greatly appreciated.

location = "London"
longitude: any;
latitude: any;

//How can I obtain these values in Typescript?

Your help will be immensely valued.

Thank you

angular google-maps typescript

Answer 1

Answer №1

Here is a method you can utilize to retrieve the latitude and longitude by geocoding an address:

fetchCoordinates(address: string): Observable<any> {
    console.log('Retrieving coordinates for address: ', address);
    let geocoder = new google.maps.Geocode();
    return Observable.create(observer => {
        geocoder.geocode({
            'address': address
        }, (results, status) => {
            if (status == google.maps.GeocoderStatus.OK) {
                observer.next(results[0].geometry.location);
                observer.complete();
            } else {
                console.log('Error encountered: ', results, ' & Status: ', status);
                observer.error();
            }
        });
    });
}

Answer 2

Here is a method you can utilize to retrieve the latitude and longitude by geocoding an address:

fetchCoordinates(address: string): Observable<any> {
    console.log('Retrieving coordinates for address: ', address);
    let geocoder = new google.maps.Geocode();
    return Observable.create(observer => {
        geocoder.geocode({
            'address': address
        }, (results, status) => {
            if (status == google.maps.GeocoderStatus.OK) {
                observer.next(results[0].geometry.location);
                observer.complete();
            } else {
                console.log('Error encountered: ', results, ' & Status: ', status);
                observer.error();
            }
        });
    });
}

What is the best way to extract longitude and latitude from a string using Angular 4 TypeScript?

Answer №1

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