@partylayer/adapter-send

@partylayer/adapter-send

---

Overview

Adapter for Send, a passkey-based Canton wallet. Send is delivered as a browser extension that injects a window.canton provider following the splice-wallet-kernel OpenRPC contract; the dApp connection layer is open-sourced as Sigilry.

Note: This adapter is included in @partylayer/sdk by default. You only need to install it separately if you build a custom adapter list.

---

Installation

npm install @partylayer/adapter-send

Users connect through a browser extension. Direct them to sigilry.org for current installation instructions before they can connect.

---

Quick start

import { useConnect } from '@partylayer/react';

function ConnectWithSend() {
  const { connect, isConnecting } = useConnect();
  return (
    <button onClick={() => connect('send')} disabled={isConnecting}>
      {isConnecting ? 'Connecting…' : 'Connect with Send'}
    </button>
  );
}

PartyLayerKit registers Send automatically — no extra wiring needed.

For explicit registration in a custom adapter list:

import { createPartyLayer, getBuiltinAdapters, SendAdapter } from '@partylayer/sdk';

const client = createPartyLayer({
  network: 'mainnet',
  appName: 'My dApp',
  adapters: [...getBuiltinAdapters(), new SendAdapter()],
});

---

Capabilities

Capability	Send	Notes
connect	✓	Sigilry connect RPC + getPrimaryAccount
disconnect	✓	—
restore	✓	Silent status probe — no popup on page reload
signMessage	✓	Passkey-signed (WebAuthn-PRF / Touch ID / Face ID)
signTransaction	✗	Fused into prepareExecute; throws CapabilityNotSupportedError pointing at submit
submitTransaction	✓	Via prepareExecuteAndWait; receipt populated from tx.payload.updateId
ledgerApi	✓	Full Sigilry passthrough (matches Console / Nightly)
events	✓	txChanged bridged to PartyLayer tx:status
injected	✓	window.canton discovery with registry-driven detection guard

---

CIP-0103 compliance

@partylayer/adapter-send is a CIP-0103 native adapter. It exposes the Send wallet's window.canton provider through PartyLayer's standard WalletAdapter interface so the same dApp code that talks to any other CIP-0103 wallet (Console, Loop, Nightly, Cantor8) also talks to Send.

The adapter:

• Maps every Sigilry RPC method (status, connect, disconnect, getPrimaryAccount, signMessage, prepareExecute, prepareExecuteAndWait, ledgerApi) onto the PartyLayer capability surface declared in getCapabilities().
• Bridges Send's txChanged event into PartyLayer's tx:status channel so transaction subscribers receive the same shape regardless of which wallet is connected.
• Routes structured JSON-RPC errors (4001 user-rejected, 4100/4900/4901 transport, -32601 method-not-supported) onto the canonical PartyLayer error taxonomy (UserRejectedError, TransportError, CapabilityNotSupportedError), so existing error-handling branches in dApp code continue to work without modification.

---

Detection

The Send adapter detects whether the running browser has a compatible Send install via the registry's providerDetection rules. The same window.canton slot is shared with other splice-wallet-kernel-compatible extensions, so the adapter funnels every RPC call through a guard that verifies the live provider matches Send's detection rule before forwarding.

When detection fails — Send is not installed, or another Canton wallet is currently occupying window.canton — the adapter raises a typed error consumers can branch on:

• SendNotInstalledError (subclass of WalletNotInstalledError) — surfaced from detectInstalled() and from any RPC call when window.canton is absent. Carries details.installUrl so a dApp can present a single click-through to the Send wallet homepage.
• SendKernelMismatchError (also a subclass of WalletNotInstalledError) — surfaced when window.canton is present but its identity doesn't match Send. The adapter cleanly returns "not installed" so any other CIP-0103 adapter present in the registry can claim the active provider instead.
• SendAuthTimeoutError — surfaced when Send's authentication backend is unreachable or slow. Carries details.cause = 'send-auth-timeout' plus retry: true so a dApp can present a "try again" affordance rather than treating the failure as a permanent error.

---

Compatibility

Requirement	Value
Browser	Chromium-based browsers with WebAuthn-PRF support
Authentication	Passkey (Touch ID / Face ID / platform authenticator)
Canton network	canton:mainnet
@partylayer/sdk	>=0.3.6

---

Send-specific behaviors

• Passkey per signature. Every signMessage and every submitTransaction triggers a fresh passkey unlock. Send does not cache passkey approval across calls — by design.
• Sign-and-submit are fused. Send does not expose a standalone signTransaction step. The adapter mirrors that: signTransaction() throws CapabilityNotSupportedError pointing at submitTransaction() (prepareExecuteAndWait under the hood).
• CIP-56 hint. Submitting a legacy Amulet_Transfer exercise on Splice.Amulet:Amulet produces an actionable error pointing at the Token Standard TransferFactory_Transfer flow. Same hint as the Loop adapter.

---

References

• Send (cantonwallet.com)
• Sigilry — open-source dApp SDK powering Send
• PartyLayer documentation: Send
• GitHub Repository
• Report issues

---

License

MIT