Sie sehen die automatische API-Dokumentation für die Hauptanwendung, welche nur deren eigene _Pfadoperationen_ anzeigt:

<img src="/img/tutorial/sub-applications/image01.png">

Öffnen Sie dann die Dokumentation für die Unteranwendung unter <a href="http://127.0.0.1:8000/subapi/docs" class="external-link" target="_blank">http://127.0.0.1:8000/subapi/docs</a>.

**FastAPI** ⏪ ➖ ⚙️ 🏭 📚 🈸 & ⚙️. & 💯 💰 🚧 1️⃣0️⃣0️⃣ 💯. ✋️ 🚮 🛠️ 🚚 🔜.

🆕 ⚒ 🚮 🛎, 🐛 🔧 🛎, & 📟 🔁 📉.

👈 ⚫️❔ ⏮️ ⏬ `0.x.x`, 👉 🎨 👈 🔠 ⏬ 💪 ⚠ ✔️ 💔 🔀. 👉 ⏩ <a href="https://semver.org/" class="external-link" target="_blank">⚛ 🛠️</a> 🏛.

👆 💪 ✍ 🏭 🈸 ⏮️ **FastAPI** ▶️️ 🔜 (&amp; 👆 ✔️ 🎲 🔨 ⚫️ 🕰), 👆 ✔️ ⚒ 💭 👈 👆 ⚙️ ⏬ 👈 👷 ☑ ⏮️ 🎂 👆 📟.

## 📌 👆 `fastapi` ⏬

🥇 👜 👆 🔜 "📌" ⏬ **FastAPI** 👆 ⚙️ 🎯 📰 ⏬ 👈 👆 💭 👷 ☑ 👆 🈸.

i(e,[{key:"resolveOptions",value:function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{};this.action=t.action,this.container=t.container,this.emitter=t.emitter,this.target=t.target,this.text=t.text,this.trigger=t.trigger,this.selectedText=""}},{key:"initSelection",value:function(){this.text?this.selectFake():this.target&&this.selectTarget()}},{key:"selectFake",value:function(){var t=this,e="rtl"==document.documentElement.getAttribute("dir");this.removeFake(),this.fakeHandlerCallback=function(){return...

    @CheckForNull private final T target;

    EquivalentToPredicate(Equivalence<T> equivalence, @CheckForNull T target) {
      this.equivalence = checkNotNull(equivalence);
      this.target = target;
    }

    @Override
    public boolean apply(@CheckForNull T input) {
      return equivalence.equivalent(input, target);
    }

    @Override

    public boolean contains(@CheckForNull Object target) {
      return indexOf(target) >= 0;
    }

    @Override
    public int indexOf(@CheckForNull Object target) {
      return target instanceof Long ? parent.indexOf((Long) target) : -1;
    }

    @Override
    public int lastIndexOf(@CheckForNull Object target) {
      return target instanceof Long ? parent.lastIndexOf((Long) target) : -1;
    }

    @Override

    @Override
    public boolean contains(@CheckForNull Object target) {
      return indexOf(target) >= 0;
    }

    @Override
    public int indexOf(@CheckForNull Object target) {
      return target instanceof Integer ? parent.indexOf((Integer) target) : -1;
    }

    @Override
    public int lastIndexOf(@CheckForNull Object target) {
      return target instanceof Integer ? parent.lastIndexOf((Integer) target) : -1;

    /**
    * Sent by the server in the Type 2 message to indicate that the 
    * target authentication realm is a domain.
    */
    public static final int NTLMSSP_TARGET_TYPE_DOMAIN = 0x00010000;

    /**
    * Sent by the server in the Type 2 message to indicate that the 
    * target authentication realm is a server.
    */
    public static final int NTLMSSP_TARGET_TYPE_SERVER = 0x00020000;

        sh "ls -lrt ${env.WORKSPACE}/apache-maven/target/"
        withEnv(["JAVA_HOME=${ tool "JDK 1.8 (latest)" }", "PATH+MAVEN=${tool 'Maven 3.6.3'}/bin:${env.JAVA_HOME}/bin"]) {
          sh "mvn clean install -V -B -Prun-its,embedded -Dmaven.test.failure.ignore -Dmaven.repo.local=${env.WORKSPACE}/repo -DmavenDistro=${env.WORKSPACE}/apache-maven/target/apache-maven-bin.zip"
        }
      }
    }
  }
  post {

    int tmp = 0;
    for (int i = 0; i < reps; i++) {
      StringWriter target = new StringWriter(2 * n);
      OutputStream encodingStream = encoding.encoding.encodingStream(target);
      encodingStream.write(encodingInputs[i & INPUTS_MASK]);
      encodingStream.close();
      tmp += target.getBuffer().length();
    }
    return tmp;
  }

  @Benchmark

### Check it

Open your browser at <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>.

You will see the JSON response as:

```JSON
{"message": "Hello World"}
```

### Interactive API docs

Now go to <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.