Programlamada **"Dependency Injection"**, kodunuzun (bu örnekte *path operation function*'larınızın) çalışmak ve kullanmak için ihtiyaç duyduğu şeyleri: "dependencies" (bağımlılıklar) olarak beyan edebilmesi anlamına gelir.

Ardından bu sistem (bu örnekte **FastAPI**), kodunuza gerekli bağımlılıkları sağlamak ("inject" etmek) için gereken her şeyi sizin yerinize halleder.

Bu yaklaşım, şunlara ihtiyaç duyduğunuzda özellikle faydalıdır:

### 启动时运行的示例工具 { #example-tools-to-run-at-startup }

可以完成这项工作的工具的一些示例是：

* Docker
* Kubernetes
* Docker Compose
* Docker in Swarm Mode
* Systemd
* Supervisor
* 作为其服务的一部分由云提供商内部处理
* 其他的...

我将在接下来的章节中为您提供更具体的示例。

## 重新启动 { #restarts }

与确保应用程序在启动时运行类似，您可能还想确保它在挂掉后**重新启动**。

### 我们会犯错误 { #we-make-mistakes }

        "per_commit" : [ "linux", "windows", "macOs" ]
      }
    } ]
  }, {
    "testId" : "org.gradle.performance.regression.java.JavaIncrementalExecutionPerformanceTest.assemble for non-abi change with file system sensitive archives",
    "groups" : [ {
      "testProject" : "largeJavaMultiProject",
      "coverage" : {
        "per_commit" : [ "linux", "windows", "macOs" ]
      }
    }, {

Algunos ejemplos de las herramientas que pueden hacer este trabajo son:

* Docker
* Kubernetes
* Docker Compose
* Docker en Modo Swarm
* Systemd
* Supervisor
* Manejado internamente por un proveedor de nube como parte de sus servicios
* Otros...

Te daré más ejemplos concretos en los próximos capítulos.

## Reinicios { #restarts }

///

## Types et validation { #types-and-validation }

Ces variables d'environnement ne gèrent que des chaînes de texte, car elles sont externes à Python et doivent être compatibles avec d'autres programmes et le reste du système (et même avec différents systèmes d'exploitation, comme Linux, Windows, macOS).

    assertThat(in.readDouble()).isEqualTo(Double.longBitsToDouble(0x1234567876543210L));
  }

  public void testNewDataInput_readUTF() {
    byte[] data = new byte[17];
    data[1] = 15;
    System.arraycopy("Kilroy was here".getBytes(UTF_8), 0, data, 2, 15);
    ByteArrayDataInput in = ByteStreams.newDataInput(data);
    assertThat(in.readUTF()).isEqualTo("Kilroy was here");
  }

      accumulator.addAll(createPairedStatsOf(xPartitions.get(index), yPartitions.get(index)));
    }
    return accumulator;
  }

  private static boolean isAndroid() {
    return checkNotNull(System.getProperty("java.runtime.name", "")).contains("Android");
  }

  private StatsTesting() {}

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// This wrapper uses syscall.Flock to prevent concurrent adb commands,
// so for now it only builds on platforms that support that system call.
// TODO(#33974): use a more portable library for file locking.

//go:build darwin || dragonfly || freebsd || illumos || linux || netbsd || openbsd

// This program can be used as go_android_GOARCH_exec by the Go tool.

    "linux" : 326,
    "windows" : 726,
    "macOs" : 209
  } ]
}, {
  "scenario" : "org.gradle.performance.regression.java.JavaIncrementalExecutionPerformanceTest.assemble for non-abi change with file system sensitive archives",
  "durations" : [ {
    "testProject" : "largeJavaMultiProject",
    "linux" : 518,
    "windows" : 1007,
    "macOs" : 275
  }, {
    "testProject" : "largeMonolithicJavaProject",

 * {@code int} values. When possible, it is recommended that the {@link UnsignedInteger} wrapper
 * class be used, at a small efficiency penalty, to enforce the distinction in the type system.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/PrimitivesExplained#unsigned-support">unsigned
 * primitive utilities</a>.
 *
 * @author Louis Wasserman
 * @since 11.0