│   └── test_main.py
```

Припустимо, що тепер файл `main.py` із Вашим **FastAPI**-застосунком містить додаткові операції шляху (**path operations**).

Він має `GET`-операцію, яка може повертати помилку.

Він має `POST`-операцію, яка може повертати кілька помилок.

Обидві операції шляху вимагають заголовок `X-Token`.

//// tab | Python 3.10+

```Python
{!> ../../docs_src/app_testing/app_b_an_py310/main.py!}
```

你可以在 **FastAPI** 应用中使用 `CORSMiddleware` 来配置它。

* 导入 `CORSMiddleware`。
* 创建一个允许的源列表（由字符串组成）。
* 将其作为「中间件」添加到你的 **FastAPI** 应用中。

你也可以指定后端是否允许：

* 凭证（授权 headers，Cookies 等）。
* 特定的 HTTP 方法（`POST`，`PUT`）或者使用通配符 `"*"` 允许所有方法。
* 特定的 HTTP headers 或者使用通配符 `"*"` 允许所有 headers。

{* ../../docs_src/cors/tutorial001.py hl[2,6:11,13:19] *}

默认情况下，这个 `CORSMiddleware` 实现所使用的默认参数较为保守，所以你需要显式地启用特定的源、方法或者 headers，以便浏览器能够在跨域上下文中使用它们。

{{ template "minio.name" . }} {{- end }} minio/templates/post-job.yaml {{- if or .Values.buckets .Values.users .Values.policies .Values.customCommands .Values.svcaccts }} apiVersion: batch/v1 kind: Job metadata: name: {{ template "minio.fullname" . }}-post-job labels: app: {{ template "minio.name" . }}-post-job chart: {{ template "minio.chart" . }} release: {{ .Release.Name }} heritage: {{ .Release.Service }} annotations: "helm.sh/hook": post-install,post-upgrade "helm.sh/hook-delete-policy": hook...

{{ template "minio.name" . }} {{- end }} minio/templates/post-job.yaml {{- if or .Values.buckets .Values.users .Values.policies .Values.customCommands .Values.svcaccts }} apiVersion: batch/v1 kind: Job metadata: name: {{ template "minio.fullname" . }}-post-job labels: app: {{ template "minio.name" . }}-post-job chart: {{ template "minio.chart" . }} release: {{ .Release.Name }} heritage: {{ .Release.Service }} annotations: "helm.sh/hook": post-install,post-upgrade "helm.sh/hook-delete-policy": hook...

{{ template "minio.name" . }} {{- end }} minio/templates/post-job.yaml {{- if or .Values.buckets .Values.users .Values.policies .Values.customCommands .Values.svcaccts }} apiVersion: batch/v1 kind: Job metadata: name: {{ template "minio.fullname" . }}-post-job labels: app: {{ template "minio.name" . }}-post-job chart: {{ template "minio.chart" . }} release: {{ .Release.Name }} heritage: {{ .Release.Service }} annotations: "helm.sh/hook": post-install,post-upgrade "helm.sh/hook-delete-policy": hook...

matchLabels: app: {{ template "minio.name" . }} {{- end }} minio/templates/post-job.yaml apiVersion: batch/v1 kind: Job metadata: name: { { template "minio.fullname" . } }-post-job namespace: { { .Release.Namespace | quote } } labels: app: { { template "minio.name" . } }-post-job chart: { { template "minio.chart" . } } release: { { .Release.Name } } heritage: { { .Release.Service } } annotations: "helm.sh/hook": post-install,post-upgrade "helm.sh/hook-delete-policy": hook-succeeded,before-hook-creation...

* Adicione-a como um "middleware" à sua aplicação **FastAPI**.

Você também pode especificar se o seu backend permite:

* Credenciais (Cabeçalhos de autorização, Cookies, etc).
* Métodos HTTP específicos (`POST`, `PUT`) ou todos eles com o curinga `"*"`.
* Cabeçalhos HTTP específicos ou todos eles com o curinga `"*"`.

{* ../../docs_src/cors/tutorial001_py39.py hl[2,6:11,13:19] *}

// errSignatureMismatch means signature did not match.
var errSignatureMismatch = errors.New("Signature does not match")

// When upload object size is greater than 5G in a single PUT/POST operation.
var errDataTooLarge = errors.New("Object size larger than allowed limit")

// When upload object size is less than what was expected.
var errDataTooSmall = errors.New("Object size smaller than expected")

	}
	boundary, ok := params["boundary"]
	if !ok {
		return nil, http.ErrMissingBoundary
	}
	return multipart.NewReader(r.Body, boundary), nil
}

// PostPolicyBucketHandler - POST policy
// ----------
// This implementation of the POST operation handles object creation with a specified
// signature policy in multipart/form-data
func (api objectAPIHandlers) PostPolicyBucketHandler(w http.ResponseWriter, r *http.Request) {

Sie können `response_model` in jeder möglichen *Pfadoperation* verwenden:

* `@app.get()`
* `@app.post()`
* `@app.put()`
* `@app.delete()`
* usw.

{* ../../docs_src/response_model/tutorial001_py310.py hl[17,22,24:27] *}

/// note | Hinweis

Beachten Sie, dass `response_model` ein Parameter der „Dekorator“-Methode ist (`get`, `post`, usw.). Nicht der *Pfadoperation-Funktion*, so wie die anderen Parameter und der Body.

///