upscopeio_flutter_sdk 2026.4.9

Flutter SDK for Upscope cobrowsing — screen sharing, annotations, and remote control

Upscope Flutter SDK

Flutter plugin for Upscope cobrowsing — lets support agents view and interact with your users' screens in real-time, with no extra permissions required.

Requirements

• Flutter 3.19+
• Dart SDK 3.3+
• iOS 14.0+
• Android API 26+ (Android 8.0)

Installation

flutter pub add upscopeio_flutter_sdk

Or add it manually to your pubspec.yaml:

dependencies:
  upscopeio_flutter_sdk: ^2026.4.8

Then run:

flutter pub get

Quick Start

1. Initialize

Call initialize once, early in your app lifecycle (e.g. in main or your root widget's initState):

import 'package:upscopeio_flutter_sdk/upscopeio_flutter_sdk.dart';

await Upscope.instance.initialize(
  UpscopeConfiguration(apiKey: 'your_api_key'),
);

By default autoConnect: true, so the SDK connects immediately after initialization.

2. Identify the visitor

await Upscope.instance.updateConnection(
  uniqueId: 'user-123',
  callName: 'Jane Smith',
  tags: ['premium', 'mobile'],
);

Call this any time visitor identity changes (e.g. after sign-in).

3. Show a lookup code to the user

The lookup code lets a support agent start a session by entering a short code in the Upscope dashboard:

Upscope.instance.lookupCode.listen((code) {
  if (code != null) {
    print('Share this code with support: $code');
  }
});

That's all. The agent can now initiate a cobrowsing session from the dashboard.

Core Concepts

Connection vs. Session

• Connection — persistent WebSocket link to Upscope servers. Established via connect(), torn down via disconnect(). Required before any session can start.
• Session — an active cobrowsing window with an agent. Begins when an agent joins (or when requestAgent() is called), ends when either party stops it.

Reactive streams

All state is exposed as Streams so you can drive your UI reactively without polling.

// Show connection status in a StreamBuilder
StreamBuilder<ConnectionState>(
  stream: Upscope.instance.connectionState,
  builder: (context, snapshot) {
    return Text(switch (snapshot.data) {
      ConnectionState.connected    => 'Ready',
      ConnectionState.connecting   => 'Connecting…',
      ConnectionState.reconnecting => 'Reconnecting…',
      ConnectionState.error        => 'Error',
      _                            => 'Offline',
    });
  },
);

Masking sensitive widgets

Wrap any widget in UpscopeMasked to hide it from the agent's view. The region is replaced with a black rectangle in the screen capture; your users see the real content as normal.

UpscopeMasked(
  child: CreditCardField(),
)

UpscopeMasked tracks position automatically — it handles layout changes, device rotation, and scroll without any extra wiring.

Common Tasks

Listen for session lifecycle events

Upscope.instance.onSessionStarted.listen((_) {
  showBanner('Screen sharing started');
});

Upscope.instance.onSessionEnded.listen((reason) {
  showBanner('Session ended: $reason');
});

React to observer changes

Upscope.instance.onObserverJoined.listen((observer) {
  print('Agent joined: ${observer.name}');
});

Upscope.instance.onObserverCountChanged.listen((count) {
  print('Observers watching: $count');
});

Request an agent

Proactively ask for a support agent without waiting for them to initiate:

await Upscope.instance.requestAgent();

// Cancel if the user changes their mind
await Upscope.instance.cancelAgentRequest();

Stop a session

await Upscope.instance.stopSession();

Send a custom message to the agent

await Upscope.instance.sendCustomMessage('{"event": "checkout_started"}');

Receive messages from the agent:

Upscope.instance.onCustomMessageReceived.listen((msg) {
  print('From ${msg.observerId}: ${msg.message}');
});

Reset the connection

Clears stored identity and reconnects (useful on sign-out):

// Reset and reconnect
await Upscope.instance.reset();

// Reset without reconnecting
await Upscope.instance.reset(reconnect: false);

Handle errors

Upscope.instance.onError.listen((error) {
  print('Upscope error [${error.code}]: ${error.message}');
});

Configuration Reference

All options are set once in UpscopeConfiguration passed to initialize:

Option	Type	Default	Description
apiKey	String	required	Your Upscope API key
autoConnect	bool	true	Connect automatically on initialize
requireAuthorizationForSession	bool	true	Prompt user before allowing agent to view screen
authorizationPromptTitle	String	'Screen Sharing Request'	Title of the consent dialog
authorizationPromptMessage	String	'An agent wants to view your screen. Do you accept?'	Body of the consent dialog
showBanner	bool	true	Show an in-app banner while a session is active
showTerminateButton	bool	true	Show a stop-sharing button in the banner
stopSessionText	String	'Stop Sharing'	Label on the stop-sharing button
endOfSessionMessage	String?	null	Message shown to the user when the session ends
allowRemoteClick	bool?	null	Override server-side remote click permission
allowRemoteScroll	bool?	null	Override server-side remote scroll permission
requireControlRequest	bool?	null	Require explicit user approval before agent can interact
region	String?	null	Force a specific Upscope server region

API Reference

Upscope.instance — methods

Method	Returns	Description
initialize(UpscopeConfiguration)	Future<void>	Initialize and optionally auto-connect
connect()	Future<void>	Connect to Upscope servers
disconnect()	Future<void>	Disconnect from Upscope servers
reset({bool reconnect})	Future<void>	Clear identity and optionally reconnect
updateConnection({uniqueId, callName, tags, identities, metadata})	Future<void>	Update visitor identity
stopSession()	Future<void>	End the current cobrowsing session
requestAgent()	Future<void>	Request a support agent
cancelAgentRequest()	Future<void>	Cancel a pending agent request
getLookupCode()	Future<void>	Trigger a lookup code refresh
getShortId()	Future<String?>	Get the persistent visitor short ID
getWatchLink()	Future<String?>	Get a direct watch link for the current session
sendCustomMessage(String)	Future<void>	Send a custom string to all connected agents

Upscope.instance — streams

Stream	Type	Emits
connectionState	Stream<ConnectionState>	Connection state changes
sessionState	Stream<SessionState>	Session state changes
lookupCode	Stream<String?>	Current lookup code (refreshes periodically)
shortId	Stream<String?>	Persistent visitor short ID
onSessionStarted	Stream<String?>	Session ID when a session begins
onSessionEnded	Stream<SessionEndReason>	Reason the session ended
onObserverJoined	Stream<Observer>	Agent joined the session
onObserverLeft	Stream<String>	Agent ID when an agent leaves
onObserverCountChanged	Stream<int>	Current number of watching agents
onCustomMessageReceived	Stream<CustomMessage>	Custom message from an agent
onError	Stream<UpscopeError>	SDK-level errors

Enums

ConnectionState — inactive, connecting, connected, reconnecting, error

SessionState — inactive, pendingRequest, active, paused, ended

SessionEndReason — userStopped, agentStopped, timeout, error

Widgets

UpscopeMasked({required Widget child}) — Wraps a child and masks its screen region during cobrowsing. Handles position tracking, rotation, and scroll automatically. No configuration needed.

Troubleshooting

Sessions never start / connection stays inactive

• Confirm autoConnect: true (default) or that you called connect() explicitly.
• Verify the API key is correct for your Upscope account.
• Check that the device has internet access.

Streams receive no events

• Subscribe to streams before calling initialize, or use a StreamController with sync: false to avoid missing the first emission.

Masked widget position is wrong after navigation

• UpscopeMasked tracks metrics changes and scroll, but not route transitions. If you push/pop routes while a masked widget is off-screen, the rect will be corrected on the next frame when the widget is visible again. This is typically transparent to the agent.

iOS build fails with missing plugin

• Ensure you have run pod install (or flutter pub get which runs it for you).
• The plugin class is UpscopePlugin registered under the io.upscope.flutter namespace.

Android build fails

• Minimum supported API is 26. Check minSdk in your app-level build.gradle.

Support

• Documentation: Flutter Docs
• Email: [e-mail]

License

Proprietary. See your agreement with Upscope for details.