# Elixir (/ja/quickstarts/elixir)

<!-- agent-signals: reading_time_min: 3 · est_tokens: 1721 · updated: 2026-07-30 -->

<div id="prerequisites">
  ## 前提条件 [#前提条件]
</div>

* Elixir 1.14+ と OTP 25+
* Firecrawl APIキー — [無料で取得できます](https://www.firecrawl.dev/app/api-keys)

<div id="install-the-sdk">
  ## SDK をインストール [#sdk-をインストール]
</div>

`mix.exs` に `firecrawl` を追加します。

```elixir
defp deps do
  [
    {:firecrawl, "~> 1.0"}
  ]
end
```

`config/config.exs` でAPIキーを設定します：

```elixir
config :firecrawl, api_key: System.get_env("FIRECRAWL_API_KEY")
```

<div id="search-the-web">
  ## ウェブを検索する [#ウェブを検索する]
</div>

```elixir
{:ok, result} = Firecrawl.search_and_scrape(query: "firecrawl web scraping", limit: 5)

for entry <- result.body["data"]["web"] do
  IO.puts("#{entry["title"]} - #{entry["url"]}")
end
```

<div id="scrape-a-page">
  ## ページをスクレイピングする [#ページをスクレイピングする]
</div>

```elixir
{:ok, result} = Firecrawl.scrape_and_extract_from_url(url: "https://example.com")
IO.puts(result.body["data"]["markdown"])
```

<Accordion title="レスポンス例">
  ```json
  {
    "success": true,
    "data": {
      "markdown": "# Example Domain\n\nThis domain is for use in illustrative examples...",
      "metadata": {
        "title": "Example Domain",
        "sourceURL": "https://example.com"
      }
    }
  }
  ```
</Accordion>

<div id="interact-with-a-page">
  ## ページを操作する [#ページを操作する]
</div>

ページをスクレイピングした後、ブラウザセッション API を使ってそのまま操作を続けます。

```elixir
{:ok, scrape} = Firecrawl.scrape_and_extract_from_url(
  url: "https://www.amazon.com",
  formats: ["markdown"]
)

scrape_id = get_in(scrape.body, ["data", "metadata", "scrapeId"])

# インタラクト用のREST APIを使用する（プロンプトベース）
headers = [
  {"Authorization", "Bearer #{Application.get_env(:firecrawl, :api_key)}"},
  {"Content-Type", "application/json"}
]

{:ok, _} = Req.post(
  "https://api.firecrawl.dev/v2/scrape/#{scrape_id}/interact",
  json: %{prompt: "Search for iPhone 16 Pro Max"},
  headers: headers
)

{:ok, response} = Req.post(
  "https://api.firecrawl.dev/v2/scrape/#{scrape_id}/interact",
  json: %{prompt: "Click on the first result and tell me the price"},
  headers: headers
)

IO.inspect(response.body)

# セッションを停止する
Req.delete(
  "https://api.firecrawl.dev/v2/scrape/#{scrape_id}/interact",
  headers: headers
)
```

<div id="environment-variable">
  ## 環境変数 [#環境変数]
</div>

ハードコードする代わりに、`FIRECRAWL_API_KEY` を環境変数として設定します:

```bash
export FIRECRAWL_API_KEY=fc-YOUR-API-KEY
```

<div id="next-steps">
  ## 次のステップ [#次のステップ]
</div>

<CardGroup cols="2">
  <Card title="スクレイピングのドキュメント" icon="<svg xmlns=&#x22;http://www.w3.org/2000/svg&#x22; viewBox=&#x22;0 0 24 24&#x22; fill=&#x22;none&#x22;><path d=&#x22;M8 7L16 7&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M8 11L12 11&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M13 21.5V21C13 18.1716 13 16.7574 13.8787 15.8787C14.7574 15 16.1716 15 19 15H19.5M20 13.3431V10C20 6.22876 20 4.34315 18.8284 3.17157C17.6569 2 15.7712 2 12 2C8.22877 2 6.34315 2 5.17157 3.17157C4 4.34314 4 6.22876 4 10L4 14.5442C4 17.7892 4 19.4117 4.88607 20.5107C5.06508 20.7327 5.26731 20.9349 5.48933 21.1139C6.58831 22 8.21082 22 11.4558 22C12.1614 22 12.5141 22 12.8372 21.886C12.9044 21.8623 12.9702 21.835 13.0345 21.8043C13.3436 21.6564 13.593 21.407 14.0919 20.9081L18.8284 16.1716C19.4065 15.5935 19.6955 15.3045 19.8478 14.9369C20 14.5694 20 14.1606 20 13.3431Z&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/></svg>" href="/ja/features/scrape">
    フォーマット、アクション、プロキシを含むスクレイピングの全オプション
  </Card>

  <Card title="検索ドキュメント" icon="<svg xmlns=&#x22;http://www.w3.org/2000/svg&#x22; viewBox=&#x22;0 0 24 24&#x22; fill=&#x22;none&#x22;><path d=&#x22;M8 7L16 7&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M8 11L12 11&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M13 21.5V21C13 18.1716 13 16.7574 13.8787 15.8787C14.7574 15 16.1716 15 19 15H19.5M20 13.3431V10C20 6.22876 20 4.34315 18.8284 3.17157C17.6569 2 15.7712 2 12 2C8.22877 2 6.34315 2 5.17157 3.17157C4 4.34314 4 6.22876 4 10L4 14.5442C4 17.7892 4 19.4117 4.88607 20.5107C5.06508 20.7327 5.26731 20.9349 5.48933 21.1139C6.58831 22 8.21082 22 11.4558 22C12.1614 22 12.5141 22 12.8372 21.886C12.9044 21.8623 12.9702 21.835 13.0345 21.8043C13.3436 21.6564 13.593 21.407 14.0919 20.9081L18.8284 16.1716C19.4065 15.5935 19.6955 15.3045 19.8478 14.9369C20 14.5694 20 14.1606 20 13.3431Z&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/></svg>" href="/ja/features/search">
    ウェブを検索し、ページ全体のコンテンツを取得
  </Card>

  <Card title="Interact ドキュメント" icon="<svg xmlns=&#x22;http://www.w3.org/2000/svg&#x22; viewBox=&#x22;0 0 24 24&#x22; fill=&#x22;none&#x22;><path d=&#x22;M8 7L16 7&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M8 11L12 11&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M13 21.5V21C13 18.1716 13 16.7574 13.8787 15.8787C14.7574 15 16.1716 15 19 15H19.5M20 13.3431V10C20 6.22876 20 4.34315 18.8284 3.17157C17.6569 2 15.7712 2 12 2C8.22877 2 6.34315 2 5.17157 3.17157C4 4.34314 4 6.22876 4 10L4 14.5442C4 17.7892 4 19.4117 4.88607 20.5107C5.06508 20.7327 5.26731 20.9349 5.48933 21.1139C6.58831 22 8.21082 22 11.4558 22C12.1614 22 12.5141 22 12.8372 21.886C12.9044 21.8623 12.9702 21.835 13.0345 21.8043C13.3436 21.6564 13.593 21.407 14.0919 20.9081L18.8284 16.1716C19.4065 15.5935 19.6955 15.3045 19.8478 14.9369C20 14.5694 20 14.1606 20 13.3431Z&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/></svg>" href="/ja/features/interact">
    クリック、フォーム入力、動的コンテンツの抽出
  </Card>

  <Card title="Elixir SDK リファレンス" icon="<svg xmlns=&#x22;http://www.w3.org/2000/svg&#x22; viewBox=&#x22;0 0 24 24&#x22; fill=&#x22;none&#x22;><path d=&#x22;M3.5 13.678C3.5 9.49387 7.08079 5.35907 9.59413 2.97222C10.9591 1.67593 13.0409 1.67593 14.4059 2.97222C16.9192 5.35907 20.5 9.49387 20.5 13.678C20.5 17.7804 17.2812 22 12 22C6.71878 22 3.5 17.7804 3.5 13.678Z&#x22; stroke=&#x22;currentColor&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M16 14C16 16.2091 14.2091 18 12 18&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/></svg>" href="/ja/sdks/elixir">
    クロール、map、バッチスクレイプなどを含む SDK の完全なリファレンス
  </Card>
</CardGroup>
