[AccessHeadersJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/AccessHeaders.java
 [AccessHeadersKotlin]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/kt/AccessHeaders.kt
 [PostStringJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PostString.java

# How To - Recipes { #how-to-recipes }

Here you will see different recipes or "how to" guides for **several topics**.

Most of these ideas would be more or less **independent**, and in most cases you should only need to study them if they apply directly to **your project**.

If something seems interesting and useful to your project, go ahead and check it, but otherwise, you might probably just skip them.

/// tip

private fun mainFiles(): List<File> {
  val directories =
    listOf(
      "$prefix/samples/guide/src/main/java/okhttp3/guide",
      "$prefix/samples/guide/src/main/java/okhttp3/recipes",
      "$prefix/samples/guide/src/main/java/okhttp3/recipes/kt",
    ).map { File(it) }

  return directories.flatMap {
    it
      .listFiles()
      .orEmpty()
      .filter { f -> f.isFile }
      .toList()
  }
}

# General - How To - Recipes { #general-how-to-recipes }

Here are several pointers to other places in the docs, for general or frequent questions.

## Filter Data - Security { #filter-data-security }

To ensure that you don't return more data than you should, read the docs for [Tutorial - Response Model - Return Type](../tutorial/response-model.md).

 [CustomTrustJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/CustomTrust.java
 [CustomTrustKotlin]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/kt/CustomTrust.kt
 [CertificatePinningJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/CertificatePinning.java

      .url(url)
      .post(body)
      .build();
  try (Response response = client.newCall(request).execute()) {
    return response.body().string();
  }
}
```

Further examples are on the [OkHttp Recipes page][recipes].


Requirements
------------

OkHttp works on Android 5.0+ (API level 21+) and Java 8+.

On Android, OkHttp uses [AndroidX Startup][androidx_startup]. If you disable the initializer in the manifest,

# ハウツー - レシピ { #how-to-recipes }

ここでは、**複数のトピック**に関するさまざまなレシピや「ハウツー」ガイドを紹介します。

これらのアイデアの多くはおおむね**独立**しており、ほとんどの場合、**あなたのプロジェクト**に直接当てはまるものだけを読めば十分です。

プロジェクトにとって興味深く有用だと思うものがあれば、ぜひ確認してください。そうでなければ、読み飛ばしても問題ありません。

/// tip | 豆知識

**FastAPI を学ぶ**ことを体系的に進めたい場合（推奨）、代わりに [チュートリアル - ユーザーガイド](../tutorial/index.md) を章ごとに読んでください。

![Events Diagram](../assets/images/******@****.***)

Here’s a [sample event listener](https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PrintEventsNonConcurrent.java) that prints each event with a timestamp.

```java
class PrintingEventListener extends EventListener {
  private long callStartNanos;

  private void printEvent(String name) {

# 一般 - ハウツー - レシピ { #general-how-to-recipes }

ここでは、一般的またはよくある質問に対して、ドキュメント内の他の箇所への参照をいくつか示します。

## データのフィルタリング - セキュリティ { #filter-data-security }

返すべき以上のデータを返さないようにするには、[チュートリアル - レスポンスモデル - 戻り値の型](../tutorial/response-model.md) を参照してください。

## レスポンス性能の最適化 - レスポンスモデル - 戻り値の型 { #optimize-response-performance-response-model-return-type }

    - deployment/https.md
    - deployment/manually.md
    - deployment/concepts.md
    - deployment/cloud.md
    - deployment/server-workers.md
    - deployment/docker.md
  - How To - Recipes:
    - how-to/index.md
    - how-to/general.md
    - how-to/migrate-from-pydantic-v1-to-pydantic-v2.md
    - how-to/graphql.md
    - how-to/custom-request-and-route.md
    - how-to/conditional-openapi.md