#### Password hashing { #password-hashing }

"Hashing" means: converting some content (a password in this case) into a sequence of bytes (just a string) that looks like gibberish.

Whenever you pass exactly the same content (exactly the same password) you get exactly the same gibberish.

But you cannot convert from the gibberish back to the password.

##### Why use password hashing { #why-use-password-hashing }

{* ../../docs_src/first_steps/tutorial003_py310.py hl[7] *}

/// note

If you don't know the difference, check the [Async: *"In a hurry?"*](../async.md#in-a-hurry).

///

### Step 5: return the content { #step-5-return-the-content }

{* ../../docs_src/first_steps/tutorial001_py310.py hl[8] *}

You can return a `dict`, `list`, singular values as `str`, `int`, etc.

Документация API использует **Swagger UI** и **ReDoc**, и для каждого из них нужны некоторые файлы JavaScript и CSS.

                    "get": {
                        "responses": {
                            "200": {
                                "description": "Successful Response",
                                "content": {"application/json": {"schema": {}}},
                            }
                        },
                        "summary": "Read Current User",
                        "operationId": "read_current_user_users_me_get",

                    "get": {
                        "responses": {
                            "200": {
                                "description": "Successful Response",
                                "content": {"application/json": {"schema": {}}},
                            }
                        },
                        "summary": "Read Current User",
                        "operationId": "read_current_user_users_me_get",

                    "get": {
                        "responses": {
                            "200": {
                                "description": "Successful Response",
                                "content": {"application/json": {"schema": {}}},
                            }
                        },
                        "summary": "Read Current User",
                        "operationId": "read_current_user_users_me_get",

                        "responses": {
                            "200": {
                                "description": "Successful Response",
                                "content": {"application/json": {"schema": {}}},
                            }
                        },
                        "security": [
                            {"OAuth2AuthorizationCodeBearer": ["read", "write"]}

    description: "Release version tests for the Elasticsearch %BRANCH% branch.\n"
    node: "general-purpose && docker"
    builders:
      - inject:
          properties-file: '.ci/java-versions.properties'
          properties-content: |
            JAVA_HOME=$HOME/.java/$ES_BUILD_JAVA
            RUNTIME_JAVA_HOME=$HOME/.java/$ES_RUNTIME_JAVA
            JAVA15_HOME=$HOME/.java/openjdk15
      - shell: |
          #!/usr/local/bin/runbld --redirect-stderr

API dokümanları **Swagger UI** ve **ReDoc** kullanır ve bunların her biri bazı JavaScript ve CSS dosyalarına ihtiyaç duyar.

* `allow_headers` - 允許跨來源請求所支援的 HTTP 請求標頭清單。預設為 `[]`。你可以使用 `['*']` 來允許所有標頭。對於[簡單 CORS 請求](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests)，`Accept`、`Accept-Language`、`Content-Language` 與 `Content-Type` 標頭一律被允許。
* `allow_credentials` - 指示是否支援跨來源請求的 Cookie。預設為 `False`。