<span style="color: green;">INFO</span>:     Started server process [28722]
<span style="color: green;">INFO</span>:     Waiting for application startup.
<span style="color: green;">INFO</span>:     Application startup complete.
```

</div>

/// note | "Технические детали"

Команда `uvicorn main:app` обращается к:

* `main`: файл `main.py` (модуль Python).

   *
   * This method returns false unless it is overridden by a subclass.
   *
   * ### Duplex Transmission
   *
   * With regular HTTP calls the request always completes sending before the response may begin
   * receiving. With duplex the request and response may be interleaved! That is, request body bytes
   * may be sent after response headers or body bytes have been received.
   *

        NT_STATUS_ACCOUNT_LOCKED_OUT,
        NT_STATUS_PATH_NOT_COVERED,
        NT_STATUS_IO_REPARSE_TAG_NOT_HANDLED,
    };

    static final String[] NT_STATUS_MESSAGES = {
        "The operation completed successfully.",
        "A device attached to the system is not functioning.",
        "Incorrect function.",
        "The parameter is incorrect.",
        "Invalid access to memory location.",

          readyTask != null -> {
            multipleReadyTasks = true
            break@eachQueue
          }

          // We have a task to execute when we complete the loop.
          else -> {
            readyTask = candidate
          }
        }
      }

      // Implement the decision.
      when {
        // We have a task ready to go. Get ready.

* **Daha az xəta**: İnsan (developer) tərəfindən törədilən səhvlərin təxminən 40% -ni azaldın. *
* **İntuitiv**: Əla redaktor dəstəyi. Hər yerdə <abbr title="auto-complete, autocompletion, IntelliSense olaraq da bilinir">otomatik tamamlama</abbr>. Xətaları müəyyənləşdirməyə daha az vaxt sərf edəcəksiniz.

which are tied to a specific release.
-->

## Introduction {#intro}

Go's emphasis on backwards compatibility is one of its key strengths.
There are, however, times when we cannot maintain complete compatibility.
If code depends on buggy (including insecure) behavior,
then fixing the bug will break that code.
New features can also have similar impacts:
enabling the HTTP/2 use by the HTTP client broke programs

* **⏩ 📟**: 📈 🚅 🛠️ ⚒ 🔃 2️⃣0️⃣0️⃣ 💯 3️⃣0️⃣0️⃣ 💯. *
* **👩‍❤‍👨 🐛**: 📉 🔃 4️⃣0️⃣ 💯 🗿 (👩‍💻) 📉 ❌. *
* **🏋️**: 👑 👨‍🎨 🐕‍🦺. <abbr title="also known as auto-complete, autocompletion, IntelliSense">🛠️</abbr> 🌐. 🌘 🕰 🛠️.
* **⏩**: 🔧 ⏩ ⚙️ &amp; 💡. 🌘 🕰 👂 🩺.
* **📏**: 📉 📟 ❎. 💗 ⚒ ⚪️➡️ 🔠 🔢 📄. 👩‍❤‍👨 🐛.
* **🏋️**: 🤚 🏭-🔜 📟. ⏮️ 🏧 🎓 🧾.

            bufferNdx = 0;
        }
        // buffer remaining input
        if (i < len)
            System.arraycopy(input, offset + i, buffer, bufferNdx, len - i);
    }

    /**
     * Completes the hash computation by performing final operations such
     * as padding. At the return of this engineDigest, the MD engine is
     * reset.
     *
     * @return the array of bytes for the resulting hash value.

  }

  /**
   * Computes a hash code based on the data that have been provided to this hasher. This is called
   * after all chunks are handled with {@link #process} and any leftover bytes that did not make a
   * complete chunk are handled with {@link #processRemaining}.
   */
  protected abstract HashCode makeHash();

  // Process pent-up data in chunks
  private void munchIfFull() {
    if (buffer.remaining() < 8) {

<font color="#4E9A06">INFO</font>:     Started server process [<font color="#06989A">2265873</font>]
<font color="#4E9A06">INFO</font>:     Waiting for application startup.
<font color="#4E9A06">INFO</font>:     Application startup complete.
</pre>
```

</div>

**強烈建議**你編寫或複製程式碼、進行修改並在本地端運行。

在編輯器中使用它，才能真正體會到 FastAPI 的好處，可以看到你只需編寫少量程式碼，以及所有的型別檢查、自動補齊等功能。

---

## 安裝 FastAPI

第一步是安裝 FastAPI。