},
    "paths": {
        "/items/": {
            "get": {
                "responses": {
                    "200": {
                        "description": "Successful Response",
                        "content": {
                            "application/json": {



...
```

#### À quoi sert OpenAPI

Le schéma **OpenAPI** est ce qui alimente les deux systèmes de documentation interactive.

    },
    "paths": {
        "/items/": {
            "get": {
                "responses": {
                    "200": {
                        "description": "Successful Response",
                        "content": {
                            "application/json": {



...
```

#### Para que serve o OpenAPI

O *schema* OpenAPI é o que possibilita os dois sistemas de documentação interativos mostrados.

      names, trademarks, service marks, or product names of the Licensor,
      except as required for reasonable and customary use in describing the
      origin of the Work and reproducing the content of the NOTICE file.

   7. Disclaimer of Warranty. Unless required by applicable law or
      agreed to in writing, Licensor provides the Work (and each
      Contributor provides its Contributions) on an "AS IS" BASIS,

* **`200`** 以上は「成功」のレスポンスのためのものです。これらは最も利用するであろうものです。
    * `200`はデフォルトのステータスコードで、すべてが「OK」であったことを意味します。
    * 別の例としては、`201`（Created）があります。これはデータベースに新しいレコードを作成した後によく使用されます。
    * 特殊なケースとして、`204`（No Content）があります。このレスポンスはクライアントに返すコンテンツがない場合に使用されます。そしてこのレスポンスはボディを持つことはできません。
* **`300`** 以上は「リダイレクト」のためのものです。これらのステータスコードを持つレスポンスは`304`（Not Modified）を除き、ボディを持つことも持たないこともできます。
* **`400`** 以上は「クライアントエラー」のレスポンスのためのものです。これらは、おそらく最も多用するであろう２番目のタイプです。

### `UploadFile`

`UploadFile` tem os seguintes atributos:

* `filename`: Uma string (`str`) com o nome original do arquivo enviado (e.g. `myimage.jpg`).
* `content-type`: Uma `str` com o tipo do conteúdo (tipo MIME / media) (e.g. `image/jpeg`).

      names, trademarks, service marks, or product names of the Licensor,
      except as required for reasonable and customary use in describing the
      origin of the Work and reproducing the content of the NOTICE file.

   7. Disclaimer of Warranty. Unless required by applicable law or
      agreed to in writing, Licensor provides the Work (and each
      Contributor provides its Contributions) on an "AS IS" BASIS,

But it will be handled by the `unicorn_exception_handler`.

So, you will receive a clean error, with an HTTP status code of `418` and a JSON content of:

```JSON
{"message": "Oops! yolo did something. There goes a rainbow..."}
```

/// note | "Technical Details"

constraints.Range.message                   = {item} must be between {min} and {max}.
constraints.SafeHtml.message                = {item} may have unsafe html content.
constraints.ScriptAssert.message            = script expression "{script}" didn't evaluate to true.
constraints.URL.message                     = {item} must be a valid URL.

constraints.Range.message                   = {item} must be between {min} and {max}.
constraints.SafeHtml.message                = {item} may have unsafe html content.
constraints.ScriptAssert.message            = script expression "{script}" didn't evaluate to true.
constraints.URL.message                     = {item} must be a valid URL.

		// sqlserver driver treats NULL and 'NULL' the same
		t.Skip("skip sqlserver")
	}

	type NullModel struct {
		ID      uint
		Content string `gorm:"default:null"`
	}

	type NullStringModel struct {
		ID      uint
		Content string `gorm:"default:'null'"`
		Active  bool   `gorm:"default:false"`
	}

	tableName := "null_string_model"

	DB.Migrator().DropTable(tableName)