O `RequestValidationError` contém o `body` que ele recebeu de dados inválidos.

Você pode utilizá-lo enquanto desenvolve seu app para conectar o *body* e debugá-lo, e assim retorná-lo ao usuário, etc.

Tente enviar um item inválido como este:

```JSON
{
  "title": "towel",
  "size": "XL"
}
```

Você receberá uma *response* informando-o de que a data é inválida, e contendo o *body* recebido:

```JSON hl_lines="12-15"

	kvsMap := c[subSys]
	for tgt, kvs := range kvsMap {
		invalidKV := KVS{}
		for _, kv := range kvs {
			if !validKeysSet.Contains(kv.Key) {
				invalidKV = append(invalidKV, kv)
			}
		}
		if len(invalidKV) > 0 {
			return Errorf(
				"found invalid keys (%s) for '%s:%s' sub-system, use 'mc admin config reset myminio %s:%s' to fix invalid keys",
				invalidKV.String(), subSys, tgt, subSys, tgt)
		}
	}

                .replace(CACHE_AND_SESSION_INVALIDATE_STATEMENT, "<% }catch(Exception e){session.invalidate();} %>");
    }

    public static String encodeJsp(final String value) {
        return value.replace("<% try{ %>", TRY_STATEMENT).replace("<% }catch(Exception e){session.invalidate();} %>",
                CACHE_AND_SESSION_INVALIDATE_STATEMENT);
    }

	SWPW.S	R1, (R2), R3       // ERROR "invalid .S suffix"
	MOVF.S	(R0), F1           // ERROR "invalid .S suffix"
	MOVF.S	F9, (R4)           // ERROR "invalid .S suffix"
	MOVF.S	0xfff0(R0), F1     // ERROR "invalid .S suffix"
	MOVF.S	F9, 0xfff0(R4)     // ERROR "invalid .S suffix"
	ADDF.S	F1, F2, F3         // ERROR "invalid .S suffix"
	SUBD.U	F1, F2             // ERROR "invalid .U suffix"

	VFMLS	V1.B16, V12.B16, V3.B16                          // ERROR "invalid arrangement"
	VFMLS	V1.H4, V12.H4, V3.H4                             // ERROR "invalid arrangement"
	VFMLS	V1.H8, V12.H8, V3.H8                             // ERROR "invalid arrangement"
	VFMLS	V1.H4, V12.H4, V3.H4                             // ERROR "invalid arrangement"

        "Cannot create a file when that file already exists.", "The handle is invalid.", "The specified path is invalid.",
        "The system cannot find the path specified.", "The specified path is invalid.",
        "The process cannot access the file because it is being used by another process.", "Access is denied.",

	DB.Migrator().DropTable(&Product{})
	DB.AutoMigrate(&Product{})

	p := Product{Code: "Invalid", Price: 100}
	if DB.Save(&p).Error == nil {
		t.Fatalf("An error from before create callbacks happened when create with invalid value")
	}

	if DB.Where("code = ?", "Invalid").First(&Product{}).Error == nil {
		t.Fatalf("Should not save record that have errors")
	}

			wantError: true,
		},
		{
			name:      "invalid resources from file",
			args:      []string{"--filename", invalidFilenameYAML},
			wantError: true,
		},
		{
			name:      "invalid filename",
			args:      []string{"--filename", "INVALID_FILE_NAME"},
			wantError: true,
		},
		{
			name:      "invalid YAML",
			args:      []string{"--filename", invalidYAMLFile},
			wantError: true,

    assertFailsToDecode(base64(), "12345", "Invalid input length 5");
    // These have a combination of invalid length, unrecognized characters and wrong padding.
    assertFailsToDecode(base64(), "AB=C", "Unrecognized character: =");
    assertFailsToDecode(base64(), "A=BCD", "Invalid input length 5");
    assertFailsToDecode(base64(), "?", "Invalid input length 1");
  }

  public void testBase64CannotUpperCase() {

		if !isAmount {
			return errors.New("invalid register extension")
		}
		switch ext {
		case "UXTB":
			if a.Type == obj.TYPE_MEM {
				return errors.New("invalid shift for the register offset addressing mode")
			}
			a.Reg = arm64.REG_UXTB + Rnum
		case "UXTH":
			if a.Type == obj.TYPE_MEM {
				return errors.New("invalid shift for the register offset addressing mode")
			}