buffer.put(readBuffer);
    return this;
  }

  /*
   * Note: hashString(CharSequence, Charset) is intentionally not overridden.
   *
   * While intuitively, using CharsetEncoder to encode the CharSequence directly to the buffer (or
   * even to an intermediate buffer) should be considerably more efficient than potentially
   * copying the CharSequence to a String and then calling getBytes(Charset) on that String, in

> - [**AssumeRole**](https://github.com/minio/minio/blob/master/docs/sts/assume-role.md)
> - [**AD/LDAP**](https://github.com/minio/minio/blob/master/docs/sts/ldap.md)

{!../../docs_src/advanced_middleware/tutorial003.py!}
```

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>

            ) {
                encodedBuf.append(c);
            } else {
                try {
                    final String target = String.valueOf(c);
                    final String converted = URLEncoder.encode(target, Constants.UTF_8);
                    if (target.equals(converted)) {
                        encodedBuf.append(Base64.getUrlEncoder().encodeToString(target.getBytes(Constants.CHARSET_UTF_8)));
                    } else {

		query := url.Values{}
		for key, value := range testCase.queryParams {
			query.Set(key, value)
		}
		// Create a request to use.
		req, err := http.NewRequest(http.MethodGet, "http://host/a/b?"+query.Encode(), nil)
		if err != nil {
			t.Errorf("(%d) failed to create http.Request, got %v", i, err)
		}
		if testCase.expected != ErrNone {
			// Should be set since we are simulating a http server.

  private fun String.asciiToLowercase(): String {
    return when {
      isAscii() -> lowercase(Locale.US) // This is an ASCII string.
      else -> this
    }
  }

  /** Returns true if the [String] is ASCII encoded (0-127). */
  private fun String.isAscii() = length == utf8Size().toInt()

  /**
   * Returns true if [hostname] matches the domain name [pattern].
   *
   * @param hostname lower-case host name.

  return IdnaMappingTableData(
    sections = sectionIndexBuffer.readUtf8(),
    ranges = rangesBuffer.readUtf8(),
    mappings = mappingsBuffer.toString(),
  )
}

/**
 * If [mapping] qualifies to be encoded as [MappedRange.InlineDelta] return new instance, otherwise null.
 * An [MappedRange.InlineDelta] must be a mapping from a single code-point to a single code-point with a difference
 * that can be represented in 2^18-1.
 */

        try {
            int off, tot, n;

            buf = new NdrBuffer(stub, 0);

            msg.flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
            msg.call_id = call_id++;

            msg.encode(buf);

            if (securityProvider != null) {
                buf.setIndex(0);
                securityProvider.wrap(buf);
            }

            tot = buf.getLength() - 24;
            off = 0;

    }


    /**
     * @return the length
     */
    public final int getLength () {
        return this.length;
    }


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

        this.byteCount = writeBytesWireFormat(dst, dstIndex);

        } else if (value instanceof Number) {
            return toString((Number) value, pattern);
        } else if (value instanceof byte[]) {
            return Base64Util.encode((byte[]) value);
        } else {
            return value.toString();
        }
    }

    /**
     * 文字列に変換します。
     *
     * @param value
     *            変換元のオブジェクト
     * @param pattern