> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/merchant-tokenization/ja/pcitkun/implement-pci-tokenization/process-a-transaction.md).

# トランザクションを処理する

支払い時にPCIトークンのデトークン化を行うにはこのフローを使用します。

## フロー

<figure><img src="/files/d038b19e89fab6d27f1620beb720854c5738f2c5" alt=""><figcaption><p>PCIトークナイゼーショントランザクションフロー</p></figcaption></figure>

<table><thead><tr><th width="100">ステップ</th><th>説明</th></tr></thead><tbody><tr><td>1</td><td>エンドユーザーが加盟店のウェブサイトまたはアプリでチェックアウトします。</td></tr><tr><td>2</td><td>加盟店またはPSPが呼び出します <code>createTransaction</code> および提供します <code>tokenId</code>.</td></tr><tr><td>3</td><td>Thalesのバックエンドがデトークン化を実行し、PANと有効期限を返します。</td></tr><tr><td>4</td><td>加盟店またはPSPはPANと有効期限を使用して承認を送信します。</td></tr></tbody></table>

## API

PCIトークナイゼーションでは、 `tokenId` および `transactionType` が必須です。

同じ `createTransaction` 操作をPCIトークナイゼーションと決済ネットワークのトークナイゼーションで使用します。

* API参照： [トランザクションの作成](broken://pages/aa59e31deefcb7087369eeed5322fc0609c32f30#post-v2-transactions)


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