And you could do this even if the data type in the request is not JSON.

For example, in this application we don't use FastAPI's integrated functionality to extract the JSON Schema from Pydantic models nor the automatic validation for JSON. In fact, we are declaring the request content type as YAML, not JSON:

=== "Pydantic v2"

    ```Python hl_lines="17-22  24"

    override fun close() {
        val projectPathToLeftoverFiles = mutableMapOf<String, LeftoverFiles>()
        // First run: delete any temporary directories used to extract resources from jars
        parameters.projectStates.get().values.forEach { projectExtension ->
            cleanUp(projectExtension.tmpExtractedResourcesDirs())
        }

      try {
        return extract();
      } finally {
        monitor.leave();
      }
    } else {
      return null;
    }
  }

  @CanIgnoreReturnValue
  @Override
  public E take() throws InterruptedException {
    final Monitor monitor = this.monitor;
    monitor.enterWhen(notEmpty);
    try {
      return extract();
    } finally {
      monitor.leave();
    }

# this failed with ERROR_ACCESS_DENIED when another process (usually an
# anti-virus scanner) opened files in the temporary directory. This test
# simulates that behavior, verifying golang.org/issue/36568.
#
# Since 1.16, we extract to the final directory, but we create a .partial file
# so that if we crash, other processes know the directory is incomplete.

[!GOOS:windows] skip
[short] skip

go run downloader.go

-- go.mod --

import org.gradle.model.internal.manage.schema.ModelSchema;
import org.gradle.model.internal.manage.schema.ModelSchemaStore;
import org.gradle.model.internal.manage.schema.extract.*;
import org.gradle.model.internal.type.ModelType;
import org.gradle.model.internal.type.ModelTypes;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutionException;

            }
        } catch (final MaxLengthExceededException e) {
            throw e;
        } catch (final Exception e) {
            if (buf.length() == 0) {
                throw new ExtractException("Could not extract a content.", e);
            }
        }

        return new ExtractData(buf.toString().trim());
    }

    public void setMaxContentSize(final long maxContentSize) {
        this.maxContentSize = maxContentSize;

		}
		if f := strings.Fields(attrValue(e.Attr, "content")); len(f) == 3 {
			imports = append(imports, metaImport{
				Prefix:   f[0],
				VCS:      f[1],
				RepoRoot: f[2],
			})
		}
	}

	// Extract mod entries if we are paying attention to them.
	var list []metaImport
	var have map[string]bool
	if mod == PreferMod {
		have = make(map[string]bool)
		for _, m := range imports {
			if m.VCS == "mod" {

stderr 'outside main module or its selected dependencies'

# 'go list -m' should not print the directory.
go list -m -f '{{.Dir}}' rsc.io/quote
! stdout .

# 'go mod download' should re-extract the module and remove the .partial file.
go mod download -modcacherw rsc.io/quote
! exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.2.partial
exists $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod

	if err == nil {
		if dir.IsDir() {
			return nil
		}
		return &PathError{Op: "mkdir", Path: path, Err: syscall.ENOTDIR}
	}

	// Slow path: make sure parent exists and then call Mkdir for path.

	// Extract the parent folder from path by first removing any trailing
	// path separator and then scanning backward until finding a path
	// separator or reaching the beginning of the string.
	i := len(path) - 1

	extraOptions[optionKeyPodNamespace] = f.podNamespace
	extraOptions[optionKeyPodUID] = string(f.podUID)
	// service account metadata
	extraOptions[optionKeyServiceAccountName] = f.podServiceAccountName

	// Extract secret and pass it as options.
	if err := addSecretsToOptions(extraOptions, f.spec, f.podNamespace, f.driverName, f.plugin.host); err != nil {
		os.Remove(dir)
		return err
	}

	// Implicit parameters