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@unlaxer/tramli-react

v0.2.0

Published

React hooks for tramli — useFlow wraps FlowEngine + FlowStore + FlowInstance lifecycle

Downloads

31

Readme

@unlaxer/tramli-react

tramli の React フック。useFlow が FlowEngine + FlowStore + FlowInstance のライフサイクルをコンポーネントに統合します。

インストール

npm install @unlaxer/tramli-react @unlaxer/tramli react

使い方

import { useFlow } from '@unlaxer/tramli-react';

function AuthPage() {
  const { state, context, resume, error, isLoading, flowId } = useFlow(authFlowDefinition, {
    initialData: new Map([['RequestOrigin', { returnTo: '/' }]]),
  });

  if (isLoading) return <Spinner />;
  if (error) return <ErrorBanner error={error} />;
  if (state === 'MFA_PENDING') return <MfaForm onSubmit={code => resume(new Map([['MfaCode', code]]))} />;
  if (state === 'COMPLETE') return <Dashboard />;
  return <LoginRedirect />;
}

API

useFlow<S>(definition, options?)

| 引数 | 型 | 説明 | |---|---|---| | definition | FlowDefinition<S> | tramli フロー定義 | | options.initialData | Map<string, unknown> | 初期データ | | options.sessionId | string | セッション ID (省略時は自動生成) |

戻り値 (UseFlowResult<S>)

| フィールド | 型 | 説明 | |---|---|---| | state | S \| null | 現在のフロー状態 | | context | FlowContext \| null | フローコンテキスト | | flowId | string \| null | フローインスタンス ID | | error | Error \| null | 直近のエラー | | isLoading | boolean | startFlow/resume 実行中 | | resume | (data?) => Promise<void> | 外部データでフローを再開 |

動作

  • FlowEngine + InMemoryFlowStore はマウント時に一度だけ生成 (useRef)
  • startFlowuseEffect で非同期実行
  • resumeuseCallback で安定参照
  • 各操作後に FlowInstance から React state を同期
  • エラーは error フィールドに格納 (throw しない)
  • 操作中は isLoading = true

License

MIT