var buf bytes.Buffer
		enc := json.NewEncoder(&buf)
		for {
			select {
			case <-doneCh:
				return
			case v, ok := <-subChT:
				if !ok {
					return
				}
				buf.Reset()
				err := enc.Encode(v)
				if err != nil {
					return
				}

				select {
				case subCh <- append(GetByteBuffer()[:0], buf.Bytes()...):
					continue
				case <-doneCh:
					return
				}
			}
		}

     * all but the first smb of the chaain do not have a header
     * and therefore we do not want to writeHeaderWireFormat. We
     * just recursivly call writeAndXWireFormat.
     */

    @Override
    public int encode(final byte[] dst, int dstIndex) {
        final int start = this.headerStart = dstIndex;

        dstIndex += writeHeaderWireFormat(dst, dstIndex);
        dstIndex += writeAndXWireFormat(dst, dstIndex);

        byte[] buffer = new byte[1024];
        int length = smb.encode(buffer, 0);

        // Create a new SMB to decode into
        TestServerMessageBlock decodedSmb = new TestServerMessageBlock();
        decodedSmb.setParamWords(new byte[params.length]);
        decodedSmb.setBytes(new byte[bytes.length]);
        decodedSmb.decode(buffer, 0);

        assertEquals(smb.command, decodedSmb.command);

            }, errorHook);
        }
    }

    /**
     * Encodes permission strings into an array.
     *
     * @param permissionsText the permissions text (newline-separated)
     * @return encoded permission array
     */
    protected static String[] encodePermissions(final String permissionsText) {

## Outros middlewares { #other-middlewares }

Há muitos outros middlewares ASGI.

Por exemplo:

* <a href="https://github.com/encode/uvicorn/blob/master/uvicorn/middleware/proxy_headers.py" class="external-link" target="_blank">Uvicorn's `ProxyHeadersMiddleware`</a>

支持以下参数：

* `minimum_size` - 小于最小字节的响应不使用 GZip。 默认值是 `500`。

## 其它中间件

除了上述中间件外，FastAPI 还支持其它ASGI 中间件。

例如：

* <a href="https://github.com/encode/uvicorn/blob/master/uvicorn/middleware/proxy_headers.py" class="external-link" target="_blank">Uvicorn 的 `ProxyHeadersMiddleware`</a>

    private long reserved;  // Must be zero
    
    public DurableHandleRequest() {
        super(NAME);
        this.reserved = 0;
    }
    
    @Override
    public void encode(byte[] buffer, int offset) {
        // Context header
        int nameLen = getName().length();
        writeInt4(buffer, offset, 16);  // Next
        writeInt2(buffer, offset + 4, nameLen);  // NameOffset

}

// MarshalXML - StringMap marshals into XML.
func (s *Metadata) MarshalXML(e *xxml.Encoder, start xxml.StartElement) error {
	if s == nil {
		return nil
	}

	if len(s.Items) == 0 {
		return nil
	}

	if err := e.EncodeToken(start); err != nil {
		return err
	}

	for _, item := range s.Items {
		if err := e.Encode(xmlKeyEntry{
			XMLName: xxml.Name{Local: item.Key},
			Value:   item.Value,

## Other middlewares { #other-middlewares }

There are many other ASGI middlewares.

For example:

* <a href="https://github.com/encode/uvicorn/blob/master/uvicorn/middleware/proxy_headers.py" class="external-link" target="_blank">Uvicorn's `ProxyHeadersMiddleware`</a>

	}
	v.Set("state", state)
	v.Set("nonce", state)
	if strings.Contains(c.Endpoint.AuthURL, "?") {
		buf.WriteByte('&')
	} else {
		buf.WriteByte('?')
	}
	buf.WriteString(v.Encode())
	return buf.String()
}

func main() {
	flag.Parse()
	if clientID == "" {
		flag.PrintDefaults()
		return
	}

	ddoc, err := parseDiscoveryDoc(configEndpoint)
	if err != nil {