# Codificador Compatível com JSON { #json-compatible-encoder }

Existem alguns casos em que você pode precisar converter um tipo de dados (como um modelo Pydantic) para algo compatível com JSON (como um `dict`, `list`, etc).

Por exemplo, se você precisar armazená-lo em um banco de dados.

Para isso, **FastAPI** fornece uma função `jsonable_encoder()`.

## Usando a função `jsonable_encoder` { #using-the-jsonable-encoder }

# JSON 相容編碼器 { #json-compatible-encoder }

在某些情況下，你可能需要將某種資料型別（例如 Pydantic 模型）轉換為與 JSON 相容的類型（例如 `dict`、`list` 等）。

例如，當你需要把它儲存在資料庫中。

為此，**FastAPI** 提供了 `jsonable_encoder()` 函式。

## 使用 `jsonable_encoder` { #using-the-jsonable-encoder }

想像你有一個只接受與 JSON 相容資料的資料庫 `fake_db`。

例如，它不接受 `datetime` 物件，因為那與 JSON 不相容。

因此，必須將 `datetime` 物件轉為一個以 [ISO 格式](https://en.wikipedia.org/wiki/ISO_8601) 表示資料的 `str`。

import com.google.common.collect.testing.features.CollectionFeature;
import com.google.common.collect.testing.features.CollectionSize;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code retainAll} operations on a collection. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.

    // The values here look like 111...11101...010 in binary, where the initial 111...1110 takes
    // up exactly as many bits as can be represented in the significand (24 for float, 53 for
    // double). That final 0 should be rounded up to 1 because the remaining bits make that number
    // slightly nearer.
    long floatConversionTest = 0xfffffe8000000002L;
    long doubleConversionTest = 0xfffffffffffff402L;

import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
import java.util.ListIterator;
import java.util.Objects;

import org.apache.maven.api.model.InputLocation;
import org.apache.maven.api.model.Plugin;
import org.eclipse.aether.AbstractRepositoryListener;

## Metadata for tags { #metadata-for-tags }

You can also add additional metadata for the different tags used to group your path operations with the parameter `openapi_tags`.

It takes a list containing one dictionary for each tag.

Each dictionary can contain:

* `name` (**required**): a `str` with the same tag name you use in the `tags` parameter in your *path operations* and `APIRouter`s.

        );
        if (mergeCommits.isEmpty() == false) {
            throw new IllegalStateException("Found the following merge commits which prevent determining bwc commits: " + mergeCommits);
        }
        return execInCheckoutDir(

	if reducedErr != nil {
		return FileInfo{}, reducedErr
	}

	// List all the file commit ids from parts metadata.
	modTimes := listObjectModtimes(partsMetadata, errs)

	// Count all latest updated FileInfo values
	var count int
	var latestFileInfo FileInfo

	// Reduce list of UUIDs to a single common value - i.e. the last updated Time
	modTime := commonTime(modTimes, expectedRQuorum)

            return new String(new char[50_000]);
          }
        };
    List<Object> list = Collections.singletonList(object);
    for (int i = 0; i < 10; i++) {
      Object[] array = new Object[500];
      Arrays.fill(array, list);
      list = Arrays.asList(array);
    }
    future2.set(list);

    unused = future.toString();
  }

  public void testToString_notDone() throws Exception {

of the configuration parameters used above - - `policies[].name` - name of the policy to create, must be a string with length > 0 - `policies[].statements[]` - list of statements, includes actions and resources - `policies[].statements[].resources[]` - list of resources that applies the statement - `policies[].statements[].actions[]` - list of actions granted ### Create user after install Install the chart, specifying the users you want to create after install: ```bash helm install --set users[0]...