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Browse SDKs · WASM
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OpenIM SDK for WASM

OpenIM Chat for WASM brings users, conversations, groups, messages, calling signals, realtime events, and local storage to browser applications. Start with the runtime setup, then connect each capability to your application state through the SDK APIs and events.

Manage conversationsConfigure conversation state, drafts, unread counts, hiding, and deletion.Unread message countKeep conversation lists and app badges in sync with unread counts.Read receiptsShow who has read group messages and update receipt state from SDK events.Send a messageCreate text, file, and custom messages, then send them to users or groups.Receive messagesSubscribe to message events and merge new messages into your UI state.Message historyPage through local and synced history with stable message cursors.
AuthenticationSign in with backend-issued tokens and handle connection lifecycle events.CallingCoordinate call invitations, room credentials, custom signals, and events.EventsRegister connection and domain events through the shared SDK instance.

Resources

Send your first messageInstall, initialize, sign in, choose a target, and send a message.Environment setupPlace WASM assets correctly for browser, SSR, and Electron runtimes.Logging and diagnosticsCapture error codes, messages, and the context needed for diagnosis.Client SDK error codesIdentify common client errors and choose the correct handling path.