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|  How to Use Google Places API for Autocomplete Address Fields in JavaScript

How to Use Google Places API for Autocomplete Address Fields in JavaScript

October 31, 2024

Learn how to implement Google Places API to enhance address fields with autocomplete functionality in JavaScript for a seamless user experience.

How to Use Google Places API for Autocomplete Address Fields in JavaScript

 

Integrate the Google Places API Script

 

  • Start by adding the Google Places API script in your HTML code. Ensure you include the Places library by appending `libraries=places` to the script URL.

 

<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places"></script>

 

 

Initialize the Autocomplete Functionality

 

  • Once the Google Places API script is loaded, you can initialize an autocomplete object by selecting an input field where you want the address suggestions to appear.

 

function initAutocomplete() {
  const input = document.getElementById('autocomplete-input');
  const autocomplete = new google.maps.places.Autocomplete(input);

  autocomplete.setFields(['address_components', 'geometry', 'icon', 'name']);
}

 

 

Handle Autocomplete Events

 

  • Listen for when the user selects a place from the autocomplete predictions. You can retrieve details about the selected place and handle it as per your needs.

 

autocomplete.addListener('place_changed', function() {
  const place = autocomplete.getPlace();
  console.log('Place details:', place);
  if (!place.geometry) {
    console.log("Returned place contains no geometry");
    return;
  }
  // Further handle the place details
});

 

 

Restrict Suggestions to Specific Areas

 

  • You may want to limit the autocomplete suggestions to specific regions, such as a particular country. Use the `componentRestrictions` property to achieve this.

 

autocomplete.setComponentRestrictions({'country': ['us']});

 

 

Customize Autocomplete Types

 

  • The autocomplete service can be customized to return only specific types of addresses or places. The most common types are geocode and address. Use the `types` option to set this preference.

 

autocomplete.setTypes(['geocode']); // Or use ['(cities)'] to get cities only

 

 

Styling the Input Field

 

  • To enhance user experience, style the autocomplete input field. This involves using CSS to define how your input field and suggestions look.

 

<style>
  #autocomplete-input {
    width: 100%;
    padding: 8px;
    font-size: 16px;
  }
</style>

 

 

Load the Autocomplete Function on Page Load

 

  • Ensure that the initialization function is called when the page loads, enabling the autocomplete feature immediately for users.

 

<body onload="initAutocomplete()">
  <input id="autocomplete-input" type="text" placeholder="Enter your address">
</body>

 

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