ss\":{\"isolation\":\"DefaultDeny\"}}" ``` With NetworkPolicy enabled, traffic will be limited to just port 9000. For more precise policy, set `networkPolicy.allowExternal=true`. This will only allow pods with the generated client label to connect to MinIO. This label will be displayed in the output of a successful install. ### Existing secret Instead of having this chart create the secret for you, you can supply a preexisting secret, much like an existing PersistentVolumeClai. First, create the...

ss\":{\"isolation\":\"DefaultDeny\"}}" ``` With NetworkPolicy enabled, traffic will be limited to just port 9000. For more precise policy, set `networkPolicy.allowExternal=true`. This will only allow pods with the generated client label to connect to MinIO. This label will be displayed in the output of a successful install. ### Existing secret Instead of having this chart create the secret for you, you can supply a preexisting secret, much like an existing PersistentVolumeClai. First, create the...

ss\":{\"isolation\":\"DefaultDeny\"}}" ``` With NetworkPolicy enabled, traffic will be limited to just port 9000. For more precise policy, set `networkPolicy.allowExternal=true`. This will only allow pods with the generated client label to connect to MinIO. This label will be displayed in the output of a successful install. ### Existing secret Instead of having this chart create the secret for you, you can supply a preexisting secret, much like an existing PersistentVolumeClai. First, create the...

ss\":{\"isolation\":\"DefaultDeny\"}}" ``` With NetworkPolicy enabled, traffic will be limited to just port 9000. For more precise policy, set `networkPolicy.allowExternal=true`. This will only allow pods with the generated client label to connect to MinIO. This label will be displayed in the output of a successful install. ### Existing secret Instead of having this chart create the secret for you, you can supply a preexisting secret, much like an existing PersistentVolumeClai. First, create the...

ss\":{\"isolation\":\"DefaultDeny\"}}" ``` With NetworkPolicy enabled, traffic will be limited to just port 9000. For more precise policy, set `networkPolicy.allowExternal=true`. This will only allow pods with the generated client label to connect to MinIO. This label will be displayed in the output of a successful install. ### Existing secret Instead of having this chart create the secret for you, you can supply a preexisting secret, much like an existing PersistentVolumeClai. First, create the...

ss\":{\"isolation\":\"DefaultDeny\"}}" ``` With NetworkPolicy enabled, traffic will be limited to just port 9000. For more precise policy, set `networkPolicy.allowExternal=true`. This will only allow pods with the generated client label to connect to MinIO. This label will be displayed in the output of a successful install. ### Existing secret Instead of having this chart create the secret for you, you can supply a preexisting secret, much like an existing PersistentVolumeClai. First, create the...

ss\":{\"isolation\":\"DefaultDeny\"}}" ``` With NetworkPolicy enabled, traffic will be limited to just port 9000. For more precise policy, set `networkPolicy.allowExternal=true`. This will only allow pods with the generated client label to connect to MinIO. This label will be displayed in the output of a successful install. ### Existing secret Instead of having this chart create the secret for you, you can supply a preexisting secret, much like an existing PersistentVolumeClai. First, create the...

## Pydantic { #pydantic }

Toda a validação de dados é realizada nos bastidores pelo [Pydantic](https://docs.pydantic.dev/), então você recebe todos os benefícios disso. E você sabe que está em boas mãos.

Você pode usar as mesmas declarações de tipo com `str`, `float`, `bool` e muitos outros tipos de dados complexos.

Vários deles são explorados nos próximos capítulos do tutorial.

### Flask REST framework들 { #flask-rest-frameworks }

Flask REST framework는 여러 개가 있지만, 시간을 들여 조사해 본 결과, 상당수가 중단되었거나 방치되어 있었고, 해결되지 않은 여러 이슈 때문에 적합하지 않은 경우가 많았습니다.

### [Marshmallow](https://marshmallow.readthedocs.io/en/stable/) { #marshmallow }

API 시스템에 필요한 주요 기능 중 하나는 데이터 "<dfn title="마샬링, 변환이라고도 함">직렬화</dfn>"입니다. 이는 코드(Python)에서 데이터를 가져와 네트워크로 전송할 수 있는 형태로 변환하는 것을 의미합니다. 예를 들어 데이터베이스의 데이터를 담은 객체를 JSON 객체로 변환하거나, `datetime` 객체를 문자열로 변환하는 등의 작업입니다.

      return this;
    }

    /**
     * Configures this {@code Builder} to order entries by value according to the specified
     * comparator.
     *
     * <p>The sort order is stable, that is, if two entries have values that compare as equivalent,
     * the entry that was inserted first will be first in the built map's iteration order.
     *