}

// parsePostPolicyForm - Parse JSON policy string into typed PostPolicyForm structure.
func parsePostPolicyForm(r io.Reader) (PostPolicyForm, error) {
	reader, err := sanitizePolicy(r)
	if err != nil {
		return PostPolicyForm{}, err
	}

	d := json.NewDecoder(reader)

	// Convert po into interfaces and
	// perform strict type conversion using reflection.
	var rawPolicy struct {

	}
}

func testValidHeader(h *FileHeader, t *testing.T) {
	var buf bytes.Buffer
	z := NewWriter(&buf)

	f, err := z.CreateHeader(h)
	if err != nil {
		t.Fatalf("error creating header: %v", err)
	}
	if _, err := f.Write([]byte("hi")); err != nil {
		t.Fatalf("error writing content: %v", err)
	}
	if err := z.Close(); err != nil {
		t.Fatalf("error closing zip writer: %v", err)
	}

    * JSON.
    * Path parameters.
    * Query parameters.
    * Cookies.
    * Headers.
    * Forms.
    * Files.
* <abbr title="also known as: serialization, parsing, marshalling">Conversion</abbr> of output data: converting from Python data and types to network data (as JSON):

        byte[] expectedBytes = unicodeFileName.getBytes(StandardCharsets.UTF_16LE);
        assertEquals(32 + expectedBytes.length, bytesWritten);

        // Verify filename length in header
        int fnLength = buffer[Smb2Constants.SMB2_HEADER_LENGTH + 26] | (buffer[Smb2Constants.SMB2_HEADER_LENGTH + 27] << 8);
        assertEquals(expectedBytes.length, fnLength);
    }

    @Test

        byte[] buffer = createValidNotificationBuffer("", FileNotifyInformation.FILE_ACTION_ADDED);

        int bytesRead = notifyInfo.decode(buffer, 0, buffer.length);

        assertTrue(bytesRead >= 12); // At least the header bytes
        assertEquals("", notifyInfo.getFileName());
    }

    /**
     * Helper method to create a valid notification buffer
     */

        // Read from buffer
        ByteArrayInputStream bais = new ByteArrayInputStream(buffer);
        SessionRequestPacket readPacket = new SessionRequestPacket(mockConfig);

        // Skip header (already read by parent class)
        bais.skip(4);
        readPacket.type = buffer[0] & 0xFF;
        readPacket.length = ((buffer[1] & 0x01) << 16) + ((buffer[2] & 0xFF) << 8) + (buffer[3] & 0xFF);

		}
		return err
	}
	if len(data) == 0 {
		// Seems to be empty create a new poolMeta object.
		return nil
	}
	if len(data) <= 4 {
		return fmt.Errorf("poolMeta: no data")
	}
	// Read header
	switch binary.LittleEndian.Uint16(data[0:2]) {
	case poolMetaFormat:
	default:
		return fmt.Errorf("poolMeta: unknown format: %d", binary.LittleEndian.Uint16(data[0:2]))
	}

Ahora utilizaremos una dependencia simple para leer un header `X-Token` personalizado:

{* ../../docs_src/bigger_applications/app_an_py39/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}

/// tip | Consejo

Estamos usando un header inventado para simplificar este ejemplo.

		defer cancel()

		r, err := store.GetObjectNInfo(ctx, minioMetaBucket, pathJoin(bucketMetaPrefix, name), nil, http.Header{}, ObjectOptions{NoLock: true})
		if err != nil {
			switch err.(type) {
			case ObjectNotFound, BucketNotFound:
				r, err = store.GetObjectNInfo(ctx, dataUsageBucket, name, nil, http.Header{}, ObjectOptions{NoLock: true})
				if err != nil {
					switch err.(type) {
					case ObjectNotFound, BucketNotFound:

            .build()

        client.newCall(request).execute().use { response ->
          if (!response.isSuccessful) throw IOException("Unexpected code $response")

          for ((name, value) in response.headers) {
            println("$name: $value")
          }

          println(response.body!!.string())
        }
      }

      /**