geophrase_flutter 1.2.0

The Flutter SDK for Geophrase Connect.

geophrase_flutter

Drop-in address selector for Flutter apps serving Indian customers. Captures perfectly structured addresses and GPS coordinates to reduce Return to Origin (RTO) costs.

📖 Full documentation and integration guide

Also building for web or React Native? See @geophrase/core, @geophrase/react, and @geophrase/react-native.

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Install

flutter pub add geophrase_flutter

iOS

Add to ios/Runner/Info.plist:

<key>NSLocationWhenInUseUsageDescription</key>
<string>We need your location to accurately place the delivery pin.</string>

Android

Add to android/app/src/main/AndroidManifest.xml (inside <manifest>):

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

Web

No extra configuration needed — the widget is rendered in a sandboxed iframe with allow="geolocation".

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Quick Start

The snippet below uses mode: 'server' so you can drop it into your app and see the widget without creating an API key first. Switching to client mode is a two-line change — see the inline comment.

import 'package:flutter/material.dart';
import 'package:geophrase_flutter/geophrase_flutter.dart';

class Checkout extends StatelessWidget {
  const Checkout({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Select Delivery Location')),
      body: GeophraseConnect(
        // 'server' (used here): widget returns a token. Pass it to your backend to resolve the address. No apiKey needed.
        // 'client' (default):   widget resolves and returns the full address directly. Requires apiKey.
        mode: 'server',

        // apiKey: 'YOUR_API_KEY', // required when mode is 'client'
        theme: 'system',            // 'light' | 'dark' | 'system'
        orderId: 'ORD-98765',       // your internal reference ID
        phone: '9999999999',        // prefills the phone field

        onSuccess: (result) {
          // server mode → GeophraseToken. POST the token to your backend.
          // client mode → GeophraseAddress. Use directly.
          if (result is GeophraseToken) {
            debugPrint('Token: ${result.token}');
          } else if (result is GeophraseAddress) {
            debugPrint('Resolved: ${result.phrase}');
          }
          Navigator.of(context).pop();
        },
        onError: (error) => debugPrint('Geophrase error: ${error.message}'),
        onClose: () => Navigator.of(context).pop(),
      ),
    );
  }
}

Open it from wherever you'd like (button press, checkout step, etc.):

Navigator.of(context).push(
  MaterialPageRoute(builder: (_) => const Checkout()),
);

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Props

Parameter	Type	Default	Required	Description
mode	String	'client'	No	'client' resolves the address in the app. 'server' returns a token for your backend to exchange.
apiKey	String	—	Conditional	Your Geophrase API key. Required when mode: 'client'.
theme	String	'system'	No	'light', 'dark', or 'system' (follows OS preference).
orderId	String	—	No	Your internal reference ID for this session.
phone	String	—	No	Pre-fills the phone field with a 10-digit Indian mobile number.
onSuccess	Function(dynamic)	—	Yes	Receives a GeophraseAddress in client mode, or a GeophraseToken in server mode.
onError	Function(GeophraseError)	—	No	Fired on API or network errors.
onClose	VoidCallback	—	No	Fired when the user dismisses the widget without selecting an address.

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Response payloads

Client mode — GeophraseAddress

Field	Type
phrase	String
verifiedAccountMobileNum	String
addressType	String
contactFullName	String
contactMobileNum	String
addressLineOne	String
addressLineTwo	String
landmark	String
city	String
state	String
postalCode	int
latitude	double
longitude	double
digiPin	String
qrCode	String
rawData	Map<String, dynamic>

Example:

{
  "phrase": "eid-hiu-sac",
  "verified_account_mobile_num": "9999999999",
  "address_type": "OFFICE",
  "contact_full_name": "Rohan",
  "contact_mobile_num": "9999999999",
  "address_line_one": "Floor 99",
  "address_line_two": "GTB Building",
  "landmark": "Map: gphr.in/eid-hiu-sac",
  "city": "Delhi",
  "state": "Delhi",
  "postal_code": 110007,
  "latitude": 16.241303391104953,
  "longitude": 99.7836155238037,
  "digi_pin": "202-P85-M87C",
  "qr_code": "https://storage.googleapis.com/geophrase/qr-codes/eid-hiu-sac.png"
}

rawData holds the unmodified API response so you can read new fields before the SDK exposes them as typed getters.

Server mode — GeophraseToken

{ "token": "d098dc34-8995-4c07-b10c-1abcade94651" }

Pass this token to your backend, where you can exchange it for the full address object using your Geophrase API key.

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Which mode should I use?

Have a backend? Use mode: 'server'. Your API key stays on your server. Combined with server IP whitelisting in the Geophrase dashboard, only requests from your own backend can use the key — the most secure configuration.

No backend? Use mode: 'client' with strict restrictions. The SDK automatically sends your app's Bundle Identifier (iOS) or Package Name (Android) with every request. Bind your API key to those in the Geophrase dashboard, and a key lifted from your binary is useless in a different app.

On Flutter Web, bundle/package restrictions don't apply — prefer mode: 'server' with origin restrictions set in the Geophrase dashboard.

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Additional information

For full documentation, advanced configuration, and dashboard access, visit business.geophrase.com/docs. To report issues or request features, use the GitHub issue tracker.