# Сувора перевірка Content-Type { #strict-content-type-checking }

За замовчуванням **FastAPI** використовує сувору перевірку заголовка `Content-Type` для тіл запитів JSON, це означає, що запити JSON мають включати дійсний заголовок `Content-Type` (наприклад, `application/json`), щоб тіло було розібране як JSON.

## Ризик CSRF { #csrf-risk }

Ця поведінка за замовчуванням забезпечує захист від класу атак **Cross-Site Request Forgery (CSRF)** у дуже конкретному сценарії.

In your editor, inside your function you will get type hints and completion everywhere (this wouldn't happen if you received a `dict` instead of a Pydantic model):

<img src="/img/tutorial/body/image03.png">

You also get error checks for incorrect type operations:

<img src="/img/tutorial/body/image04.png">

This is not by chance, the whole framework was built around that design.

			// empty or `madmin.Default`.
			writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigLDAPNonDefaultConfigName), r.URL)
			return
		}
	}

	// Check that this is a valid Create vs Update API call.
	s := globalServerConfig.Clone()
	if apiErrCode := handleCreateUpdateValidation(s, subSys, cfgTarget, isUpdate); apiErrCode != ErrNone {

    return Multisets.iteratorImpl(this);
  }

  @Override
  public @Nullable Object[] toArray() {
    return standardToArray();
  }

  @Override
  @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
  public <T extends @Nullable Object> T[] toArray(T[] array) {
    return standardToArray(array);
  }

  @Override
  public String toString() {
    return entrySet().toString();

//   - [128]bool with explicit bounds check (if c >= 128): introduces branches
//     that cause pipeline stalls, resulting in ~70% slower performance
//   - [128]bool with masking (c&0x7f): eliminates bounds checks but the AND
//     operation still costs ~10% performance compared to direct indexing
//
// The 256-element array allows direct indexing with no bounds checks, no branches,

import static com.google.common.truth.Truth.assertWithMessage;

import com.google.common.testing.AbstractPackageSanityTests;
import org.jspecify.annotations.NullUnmarked;

/**
 * Covers basic sanity checks for the entire package.
 *
 * @author Kurt Alfred Kluever
 */

@NullUnmarked
public class PackageSanityTests extends AbstractPackageSanityTests {

  private static final AbstractGraphBuilder<?> graphBuilderA =

package lock

import (
	"strings"
	"testing"
)

func TestFixLongPath(t *testing.T) {
	// 248 is long enough to trigger the longer-than-248 checks in
	// fixLongPath, but short enough not to make a path component
	// longer than 255, which is illegal on Windows. (which
	// doesn't really matter anyway, since this is purely a string

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package mountinfo

// CheckCrossDevice - check if any input path has multiple sub-mounts.
// this is a dummy function and returns nil for now.
func CheckCrossDevice(paths []string) error {
	return nil
}

// IsLikelyMountPoint determines if a directory is a mountpoint.

  }

  /**
   * Test EqualsTester with no equals or not equals objects. This checks proper handling of null,
   * incompatible class and reflexive tests
   */
  public void testTestEqualsEmptyLists() {
    equalsTester.addEqualityGroup(reference);
    equalsTester.testEquals();
  }

  /**
   * Test EqualsTester after populating equalObjects. This checks proper handling of equality and
   * verifies hashCode for valid objects

        go-version: [1.24.x]
        os: [ubuntu-latest]
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-go@v5
        with:
          go-version: ${{ matrix.go-version }}
          check-latest: true
      - name: Build on ${{ matrix.os }}
        if: matrix.os == 'ubuntu-latest'
        env:
          CGO_ENABLED: 0
          GO111MODULE: on