* 應用程式

* 請求
* 回應
* 錯誤回應

* 路徑操作
* 路徑操作裝飾器
* 路徑操作函式

* 主體
* 請求主體
* 回應主體
* JSON 主體
* 表單主體
* 檔案主體
* 函式主體

* 參數
* 主體參數
* 路徑參數
* 查詢參數
* Cookie 參數
* 標頭參數
* 表單參數
* 函式參數

* 事件
* 啟動事件
* 伺服器的啟動
* 關閉事件
* 生命週期事件

* 處理器
* 事件處理器
* 例外處理器
* 處理

* 模型
* Pydantic 模型
* 資料模型
* 資料庫模型
* 表單模型
* 模型物件

// See go.dev/issue/67401.
//
// Note that this comment is not part of the doc comment.
//
//go:linkname Repeat

// Repeat returns a new byte slice consisting of count copies of b.
//
// It panics if count is negative or if the result of (len(b) * count)
// overflows.
func Repeat(b []byte, count int) []byte {
	if count == 0 {
		return []byte{}
	}

/// tip | Совет

Здесь мы используем `Query()`, потому что это **query-параметр**. Позже мы увидим другие — `Path()`, `Body()`, `Header()` и `Cookie()`, — они также принимают те же аргументы, что и `Query()`.

///

Теперь FastAPI будет:

* **валидировать** данные, удостоверяясь, что максимальная длина — 50 символов;

      granted to You under this License for that Work shall terminate
      as of the date such litigation is filed.

   4. Redistribution. You may reproduce and distribute copies of the
      Work or Derivative Works thereof in any medium, with or without
      modifications, and in Source or Object form, provided that You
      meet the following conditions:

   *     for the keys
   */
  @CanIgnoreReturnValue
  @Nullable V put(
      @ParametricNullness R rowKey, @ParametricNullness C columnKey, @ParametricNullness V value);

  /**
   * Copies all mappings from the specified table to this table. The effect is equivalent to calling
   * {@link #put} with each row key / column key / value mapping in {@code table}.
   *
   * @param table the table to add to this table

      checkNotNull(value);
      checkArgument(!range.isEmpty(), "Range must not be empty, but was %s", range);
      entries.add(immutableEntry(range, value));
      return this;
    }

    /** Copies all associations from the specified range map into this builder. */
    @CanIgnoreReturnValue
    public Builder<K, V> putAll(RangeMap<K, ? extends V> rangeMap) {

func (*parser) parseString(b []byte) string {
	if i := bytes.IndexByte(b, 0); i >= 0 {
		return string(b[:i])
	}
	return string(b)
}

// formatString copies s into b, NUL-terminating if possible.
func (f *formatter) formatString(b []byte, s string) {
	if len(s) > len(b) {
		f.err = ErrFieldTooLong
	}
	copy(b, s)
	if len(s) < len(b) {
		b[len(s)] = 0
	}

Now let's imagine these aren't "Concurrent Burgers", but "Parallel Burgers".

You go with your crush to get parallel fast food.

You stand in line while several (let's say 8) cashiers that at the same time are cooks take the orders from the people in front of you.

/// tip

Here we are using `Query()` because this is a **query parameter**. Later we will see others like `Path()`, `Body()`, `Header()`, and `Cookie()`, that also accept the same arguments as `Query()`.

///

FastAPI will now:

* **Validate** the data making sure that the max length is 50 characters

* the response body
* the JSON body
* the form body
* the file body
* the function body

* the parameter
* the body parameter
* the path parameter
* the query parameter
* the cookie parameter
* the header parameter
* the form parameter
* the function parameter

* the event
* the startup event
* the startup of the server
* the shutdown event
* the lifespan event