## Uses of Interface
io.vertx.core.buffer.Buffer

- Packages that use Buffer
  Package | Description
  --- | ---
  io.vertx.amqp |
  io.vertx.config.consul |
  io.vertx.config.git |
  io.vertx.config.hocon |
  io.vertx.config.kubernetes |
  io.vertx.config.redis |
  io.vertx.config.spi |
  io.vertx.config.spi.utils |
  io.vertx.config.vault |
  io.vertx.config.yaml |
  io.vertx.config.zookeeper |
  io.vertx.core.buffer |
  io.vertx.core.datagram |
  io.vertx.core.dns |
  io.vertx.core.eventbus |
  io.vertx.core.file |
  io.vertx.core.http |
  io.vertx.core.json |
  io.vertx.core.json.jackson |
  io.vertx.core.net |
  io.vertx.core.parsetools |
  io.vertx.core.spi.cluster |
  io.vertx.core.spi.json |
  io.vertx.ext.auth |
  io.vertx.ext.auth.oauth2 |
  io.vertx.ext.consul |
  io.vertx.ext.mail |
  io.vertx.ext.mail.mailencoder |
  io.vertx.ext.mongo |
  io.vertx.ext.shell.term |
  io.vertx.ext.stomp |
  io.vertx.ext.web |
  io.vertx.ext.web.api |
  io.vertx.ext.web.api.service |
  io.vertx.ext.web.client |
  io.vertx.ext.web.codec |
  io.vertx.ext.web.common.template |
  io.vertx.ext.web.handler.sockjs |
  io.vertx.ext.web.multipart |
  io.vertx.ext.web.validation |
  io.vertx.kafka.client.producer |
  io.vertx.kafka.client.serialization |
  io.vertx.mqtt |
  io.vertx.mqtt.messages |
  io.vertx.mysqlclient |
  io.vertx.pgclient |
  io.vertx.rabbitmq |
  io.vertx.reactivex.core.buffer |
  io.vertx.redis.client |
  io.vertx.rxjava.core.buffer |
  io.vertx.serviceproxy |
  io.vertx.sqlclient |
  io.vertx.tracing.zipkin |

- - ### Uses of Buffer in io.vertx.amqp

    Methods in io.vertx.amqp that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | AmqpMessage.`bodyAsBinary()`

    Methods in io.vertx.amqp with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `AmqpClientOptions` | AmqpClientOptions.`addCrlValue(Buffer crlValue)`
    `AmqpMessageBuilder` | AmqpMessageBuilder.`withBufferAsBody(Buffer buffer)`

  - ### Uses of Buffer in io.vertx.config.consul

    Methods in io.vertx.config.consul that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Buffer>` | ConsulConfigStore.`get()`

  - ### Uses of Buffer in io.vertx.config.git

    Methods in io.vertx.config.git that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Buffer>` | GitConfigStore.`get()`

  - ### Uses of Buffer in io.vertx.config.hocon

    Methods in io.vertx.config.hocon with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<JsonObject>` | HoconProcessor.`process(Vertx vertx, JsonObject configuration, Buffer input)`

  - ### Uses of Buffer in io.vertx.config.kubernetes

    Methods in io.vertx.config.kubernetes that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Buffer>` | ConfigMapStore.`get()`

  - ### Uses of Buffer in io.vertx.config.redis

    Methods in io.vertx.config.redis that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Buffer>` | RedisConfigStore.`get()`

  - ### Uses of Buffer in io.vertx.config.spi

    Methods in io.vertx.config.spi that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Future<Buffer>` | ConfigStore.`get()` Retrieves the configuration store in this store.

    Methods in io.vertx.config.spi with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Future<JsonObject>` | ConfigProcessor.`process(Vertx vertx, JsonObject configuration, Buffer input)` Transforms the given `input` into a `JsonObject`.
    `default void` | ConfigProcessor.`process(Vertx vertx, JsonObject configuration, Buffer input, Handler<AsyncResult<JsonObject>> handler)` Deprecated. implement `ConfigProcessor.process(Vertx, JsonObject, Buffer)` instead

    Method parameters in io.vertx.config.spi with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default void` | ConfigStore.`get(Handler<AsyncResult<Buffer>> completionHandler)` Deprecated. implement `ConfigStore.get()` instead

  - ### Uses of Buffer in io.vertx.config.spi.utils

    Methods in io.vertx.config.spi.utils that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static Buffer` | JsonObjectHelper.`toBuffer(JsonObject json)` Deprecated. use `JsonObject.toBuffer()` instead

  - ### Uses of Buffer in io.vertx.config.vault

    Methods in io.vertx.config.vault that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Buffer>` | VaultConfigStore.`get()`

  - ### Uses of Buffer in io.vertx.config.yaml

    Methods in io.vertx.config.yaml with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<JsonObject>` | YamlProcessor.`process(Vertx vertx, JsonObject configuration, Buffer input)`

  - ### Uses of Buffer in io.vertx.config.zookeeper

    Methods in io.vertx.config.zookeeper that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Buffer>` | ZookeeperConfigStore.`get()`

  - ### Uses of Buffer in io.vertx.core.buffer

    Methods in io.vertx.core.buffer that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | Buffer.`appendBuffer(Buffer buff)` Appends the specified `Buffer` to the end of this Buffer.
    `Buffer` | Buffer.`appendBuffer(Buffer buff, int offset, int len)` Appends the specified `Buffer` starting at the `offset` using `len` to the end of this Buffer.
    `Buffer` | Buffer.`appendByte(byte b)` Appends the specified `byte` to the end of the Buffer.
    `Buffer` | Buffer.`appendBytes(byte[] bytes)` Appends the specified `byte[]` to the end of the Buffer.
    `Buffer` | Buffer.`appendBytes(byte[] bytes, int offset, int len)` Appends the specified number of bytes from `byte[]` to the end of the Buffer, starting at the given offset.
    `Buffer` | Buffer.`appendDouble(double d)` Appends the specified `double` to the end of the Buffer.
    `Buffer` | Buffer.`appendFloat(float f)` Appends the specified `float` to the end of the Buffer.
    `Buffer` | Buffer.`appendInt(int i)` Appends the specified `int` to the end of the Buffer.
    `Buffer` | Buffer.`appendIntLE(int i)` Appends the specified `int` to the end of the Buffer in the Little Endian Byte Order.
    `Buffer` | Buffer.`appendLong(long l)` Appends the specified `long` to the end of the Buffer.
    `Buffer` | Buffer.`appendLongLE(long l)` Appends the specified `long` to the end of the Buffer in the Little Endian Byte Order.
    `Buffer` | Buffer.`appendMedium(int i)` Appends the specified 24bit `int` to the end of the Buffer.
    `Buffer` | Buffer.`appendMediumLE(int i)` Appends the specified 24bit `int` to the end of the Buffer in the Little Endian Byte Order.
    `Buffer` | Buffer.`appendShort(short s)` Appends the specified `short` to the end of the Buffer.The buffer will expand as necessary to accommodate any bytes written.
    `Buffer` | Buffer.`appendShortLE(short s)` Appends the specified `short` to the end of the Buffer in the Little Endian Byte Order.The buffer will expand as necessary to accommodate any bytes written.
    `Buffer` | Buffer.`appendString(String str)` Appends the specified `String str` to the end of the Buffer with UTF-8 encoding.
    `Buffer` | Buffer.`appendString(String str, String enc)` Appends the specified `String` to the end of the Buffer with the encoding as specified by `enc`.
    `Buffer` | Buffer.`appendUnsignedByte(short b)` Appends the specified unsigned `byte` to the end of the Buffer.
    `Buffer` | Buffer.`appendUnsignedInt(long i)` Appends the specified unsigned `int` to the end of the Buffer.
    `Buffer` | Buffer.`appendUnsignedIntLE(long i)` Appends the specified unsigned `int` to the end of the Buffer in the Little Endian Byte Order.
    `Buffer` | Buffer.`appendUnsignedShort(int s)` Appends the specified unsigned `short` to the end of the Buffer.The buffer will expand as necessary to accommodate any bytes written.
    `Buffer` | Buffer.`appendUnsignedShortLE(int s)` Appends the specified unsigned `short` to the end of the Buffer in the Little Endian Byte Order.The buffer will expand as necessary to accommodate any bytes written.
    `static Buffer` | Buffer.`buffer()` Create a new, empty buffer.
    `static Buffer` | Buffer.`buffer(byte[] bytes)` Create a new buffer from a byte[].
    `static Buffer` | Buffer.`buffer(io.netty.buffer.ByteBuf byteBuf)` Create a new buffer from a Netty `ByteBuf`.
    `static Buffer` | Buffer.`buffer(int initialSizeHint)` Create a new buffer given the initial size hint.
    `static Buffer` | Buffer.`buffer(String string)` Create a new buffer from a string.
    `static Buffer` | Buffer.`buffer(String string, String enc)` Create a new buffer from a string and using the specified encoding.
    `Buffer` | Buffer.`copy()` Returns a copy of the entire Buffer.
    `Buffer` | Buffer.`getBuffer(int start, int end)` Returns a copy of a sub-sequence the Buffer as a `Buffer` starting at position `start` and ending at position `end - 1`
    `Buffer` | Buffer.`getBytes(byte[] dst)` Transfers the content of the Buffer into a `byte[]`.
    `Buffer` | Buffer.`getBytes(byte[] dst, int dstIndex)` Transfers the content of the Buffer into a `byte[]` at the specific destination.
    `Buffer` | Buffer.`getBytes(int start, int end, byte[] dst)` Transfers the content of the Buffer starting at position `start` and ending at position `end - 1` into a `byte[]`.
    `Buffer` | Buffer.`getBytes(int start, int end, byte[] dst, int dstIndex)` Transfers the content of the Buffer starting at position `start` and ending at position `end - 1` into a `byte[]` at the specific destination.
    `Buffer` | Buffer.`setBuffer(int pos, Buffer b)` Sets the bytes at position `pos` in the Buffer to the bytes represented by the `Buffer b`.
    `Buffer` | Buffer.`setBuffer(int pos, Buffer b, int offset, int len)` Sets the bytes at position `pos` in the Buffer to the bytes represented by the `Buffer b` on the given `offset` and `len`.
    `Buffer` | Buffer.`setByte(int pos, byte b)` Sets the `byte` at position `pos` in the Buffer to the value `b`.
    `Buffer` | Buffer.`setBytes(int pos, byte[] b)` Sets the bytes at position `pos` in the Buffer to the bytes represented by the `byte[] b`.
    `Buffer` | Buffer.`setBytes(int pos, byte[] b, int offset, int len)` Sets the given number of bytes at position `pos` in the Buffer to the bytes represented by the `byte[] b`.
    `Buffer` | Buffer.`setBytes(int pos, ByteBuffer b)` Sets the bytes at position `pos` in the Buffer to the bytes represented by the `ByteBuffer b`.
    `Buffer` | Buffer.`setDouble(int pos, double d)` Sets the `double` at position `pos` in the Buffer to the value `d`.
    `Buffer` | Buffer.`setFloat(int pos, float f)` Sets the `float` at position `pos` in the Buffer to the value `f`.
    `Buffer` | Buffer.`setInt(int pos, int i)` Sets the `int` at position `pos` in the Buffer to the value `i`.
    `Buffer` | Buffer.`setIntLE(int pos, int i)` Sets the `int` at position `pos` in the Buffer to the value `i` in the Little Endian Byte Order.
    `Buffer` | Buffer.`setLong(int pos, long l)` Sets the `long` at position `pos` in the Buffer to the value `l`.
    `Buffer` | Buffer.`setLongLE(int pos, long l)` Sets the `long` at position `pos` in the Buffer to the value `l` in the Little Endian Byte Order.
    `Buffer` | Buffer.`setMedium(int pos, int i)` Sets the 24bit `int` at position `pos` in the Buffer to the value `i`.
    `Buffer` | Buffer.`setMediumLE(int pos, int i)` Sets the 24bit `int` at position `pos` in the Buffer to the value `i`.
    `Buffer` | Buffer.`setShort(int pos, short s)` Sets the `short` at position `pos` in the Buffer to the value `s`.
    `Buffer` | Buffer.`setShortLE(int pos, short s)` Sets the `short` at position `pos` in the Buffer to the value `s` in the Little Endian Byte Order.
    `Buffer` | Buffer.`setString(int pos, String str)` Sets the bytes at position `pos` in the Buffer to the value of `str` encoded in UTF-8.
    `Buffer` | Buffer.`setString(int pos, String str, String enc)` Sets the bytes at position `pos` in the Buffer to the value of `str` encoded in encoding `enc`.
    `Buffer` | Buffer.`setUnsignedByte(int pos, short b)` Sets the unsigned `byte` at position `pos` in the Buffer to the value `b`.
    `Buffer` | Buffer.`setUnsignedInt(int pos, long i)` Sets the unsigned `int` at position `pos` in the Buffer to the value `i`.
    `Buffer` | Buffer.`setUnsignedIntLE(int pos, long i)` Sets the unsigned `int` at position `pos` in the Buffer to the value `i` in the Little Endian Byte Order.
    `Buffer` | Buffer.`setUnsignedShort(int pos, int s)` Sets the unsigned `short` at position `pos` in the Buffer to the value `s`.
    `Buffer` | Buffer.`setUnsignedShortLE(int pos, int s)` Sets the unsigned `short` at position `pos` in the Buffer to the value `s` in the Little Endian Byte Order.
    `Buffer` | Buffer.`slice()` Returns a slice of this buffer.
    `Buffer` | Buffer.`slice(int start, int end)` Returns a slice of this buffer.

    Methods in io.vertx.core.buffer with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | Buffer.`appendBuffer(Buffer buff)` Appends the specified `Buffer` to the end of this Buffer.
    `Buffer` | Buffer.`appendBuffer(Buffer buff, int offset, int len)` Appends the specified `Buffer` starting at the `offset` using `len` to the end of this Buffer.
    `Buffer` | Buffer.`setBuffer(int pos, Buffer b)` Sets the bytes at position `pos` in the Buffer to the bytes represented by the `Buffer b`.
    `Buffer` | Buffer.`setBuffer(int pos, Buffer b, int offset, int len)` Sets the bytes at position `pos` in the Buffer to the bytes represented by the `Buffer b` on the given `offset` and `len`.

  - ### Uses of Buffer in io.vertx.core.datagram

    Methods in io.vertx.core.datagram that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | DatagramPacket.`data()` Returns the data of the `DatagramPacket`

    Methods in io.vertx.core.datagram that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `WriteStream<Buffer>` | DatagramSocket.`sender(int port, String host)` Returns a `WriteStream<Buffer>` able to send `Buffer` to the `SocketAddress`.

    Methods in io.vertx.core.datagram with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Void>` | DatagramSocket.`send(Buffer packet, int port, String host)` Like `DatagramSocket.send(Buffer, int, String, Handler)` but returns a `Future` of the asynchronous result
    `DatagramSocket` | DatagramSocket.`send(Buffer packet, int port, String host, Handler<AsyncResult<Void>> handler)` Write the given `Buffer` to the `SocketAddress`.

  - ### Uses of Buffer in io.vertx.core.dns

    Methods in io.vertx.core.dns that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | AddressResolverOptions.`getHostsValue()`

    Methods in io.vertx.core.dns with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `AddressResolverOptions` | AddressResolverOptions.`setHostsValue(Buffer hostsValue)` Set an alternate hosts configuration file to use instead of the one provided by the os.

  - ### Uses of Buffer in io.vertx.core.eventbus

    Methods in io.vertx.core.eventbus with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `EventBusOptions` | EventBusOptions.`addCrlValue(Buffer crlValue)`
    `R` | MessageCodec.`decodeFromWire(int pos, Buffer buffer)` Called by Vert.x when a message is decoded from the wire.
    `void` | MessageCodec.`encodeToWire(Buffer buffer, S s)` Called by Vert.x when marshalling a message to the wire.

  - ### Uses of Buffer in io.vertx.core.file

    Methods in io.vertx.core.file that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | FileSystem.`readFileBlocking(String path)` Blocking version of `FileSystem.readFile(String, Handler)`

    Methods in io.vertx.core.file that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Buffer>` | AsyncFile.`read(Buffer buffer, int offset, long position, int length)` Like `AsyncFile.read(Buffer, int, long, int, Handler)` but returns a `Future` of the asynchronous result
    `Future<Buffer>` | FileSystem.`readFile(String path)` Like `FileSystem.readFile(String, Handler)` but returns a `Future` of the asynchronous result

    Methods in io.vertx.core.file with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Buffer>` | AsyncFile.`read(Buffer buffer, int offset, long position, int length)` Like `AsyncFile.read(Buffer, int, long, int, Handler)` but returns a `Future` of the asynchronous result
    `AsyncFile` | AsyncFile.`read(Buffer buffer, int offset, long position, int length, Handler<AsyncResult<Buffer>> handler)` Reads `length` bytes of data from the file at position `position` in the file, asynchronously.
    `Future<Void>` | AsyncFile.`write(Buffer buffer, long position)` Like `AsyncFile.write(Buffer, long, Handler)` but returns a `Future` of the asynchronous result
    `void` | AsyncFile.`write(Buffer buffer, long position, Handler<AsyncResult<Void>> handler)` Write a `Buffer` to the file at position `position` in the file, asynchronously.
    `Future<Void>` | FileSystem.`writeFile(String path, Buffer data)` Like `FileSystem.writeFile(String, Buffer, Handler)` but returns a `Future` of the asynchronous result
    `FileSystem` | FileSystem.`writeFile(String path, Buffer data, Handler<AsyncResult<Void>> handler)` Creates the file, and writes the specified `Buffer data` to the file represented by the path `path`, asynchronously.
    `FileSystem` | FileSystem.`writeFileBlocking(String path, Buffer data)` Blocking version of `FileSystem.writeFile(String, Buffer, Handler)`

    Method parameters in io.vertx.core.file with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `AsyncFile` | AsyncFile.`handler(Handler<Buffer> handler)`
    `AsyncFile` | AsyncFile.`read(Buffer buffer, int offset, long position, int length, Handler<AsyncResult<Buffer>> handler)` Reads `length` bytes of data from the file at position `position` in the file, asynchronously.
    `FileSystem` | FileSystem.`readFile(String path, Handler<AsyncResult<Buffer>> handler)` Reads the entire file as represented by the path `path` as a `Buffer`, asynchronously.

  - ### Uses of Buffer in io.vertx.core.http

    Methods in io.vertx.core.http that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | WebSocketFrame.`binaryData()`
    `Buffer` | GoAway.`getDebugData()`
    `Buffer` | HttpFrame.`payload()`

    Methods in io.vertx.core.http that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Buffer>` | HttpClientResponse.`body()` Convenience method for receiving the entire request body in one piece.
    `Future<Buffer>` | HttpServerRequest.`body()` Convenience method for receiving the entire request body in one piece.
    `Future<Buffer>` | HttpConnection.`ping(Buffer data)` Same as `HttpConnection.ping(Buffer, Handler)` but returns a `Future` of the asynchronous result

    Methods in io.vertx.core.http with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `HttpClientOptions` | HttpClientOptions.`addCrlValue(Buffer crlValue)`
    `HttpServerOptions` | HttpServerOptions.`addCrlValue(Buffer crlValue)`
    `static WebSocketFrame` | WebSocketFrame.`binaryFrame(Buffer data, boolean isFinal)` Create a binary WebSocket frame.
    `static WebSocketFrame` | WebSocketFrame.`continuationFrame(Buffer data, boolean isFinal)` Create a continuation frame
    `Future<Void>` | HttpServerResponse.`end(Buffer chunk)` Same as `HttpServerResponse.end()` but writes some data to the response body before ending.
    `Future<Void>` | HttpClientRequest.`end(Buffer chunk)` Same as `HttpClientRequest.end()` but writes some data to the request body before ending.
    `void` | HttpServerResponse.`end(Buffer chunk, Handler<AsyncResult<Void>> handler)` Same as `HttpServerResponse.end(Buffer)` but with an `handler` called when the operation completes
    `void` | HttpClientRequest.`end(Buffer chunk, Handler<AsyncResult<Void>> handler)` Same as `HttpClientRequest.end(String)` but with an `handler` called when the operation completes
    `HttpConnection` | HttpConnection.`goAway(long errorCode, int lastStreamId, Buffer debugData)` Send a go away frame to the remote endpoint of the connection.
    `Future<Buffer>` | HttpConnection.`ping(Buffer data)` Same as `HttpConnection.ping(Buffer, Handler)` but returns a `Future` of the asynchronous result
    `HttpConnection` | HttpConnection.`ping(Buffer data, Handler<AsyncResult<Buffer>> pongHandler)` Send a PING frame to the remote endpoint.
    `static WebSocketFrame` | WebSocketFrame.`pingFrame(Buffer data)` Create a ping WebSocket frame.
    `static WebSocketFrame` | WebSocketFrame.`pongFrame(Buffer data)` Create a pong WebSocket frame.
    `default Future<Void>` | HttpServerResponse.`send(Buffer body)` Like `HttpServerResponse.send(Buffer, Handler)` but returns a `Future` of the asynchronous result
    `default Future<HttpClientResponse>` | HttpClientRequest.`send(Buffer body)` Like `HttpClientRequest.send(Buffer, Handler)` but returns a `Future` of the asynchronous result
    `default void` | HttpClientRequest.`send(Buffer body, Handler<AsyncResult<HttpClientResponse>> handler)` Send the request with a buffer `body`.
    `default void` | HttpServerResponse.`send(Buffer body, Handler<AsyncResult<Void>> handler)` Send the request with a buffer `body`.
    `GoAway` | GoAway.`setDebugData(Buffer debugData)` Set the additional debug data
    `Future<Void>` | WebSocketBase.`writeBinaryMessage(Buffer data)` Writes a (potentially large) piece of binary data to the connection.
    `ServerWebSocket` | ServerWebSocket.`writeBinaryMessage(Buffer data, Handler<AsyncResult<Void>> handler)`
    `WebSocket` | WebSocket.`writeBinaryMessage(Buffer data, Handler<AsyncResult<Void>> handler)`
    `WebSocketBase` | WebSocketBase.`writeBinaryMessage(Buffer data, Handler<AsyncResult<Void>> handler)` Same as `WebSocketBase.writeBinaryMessage(Buffer)` but with an `handler` called when the operation completes
    `HttpServerResponse` | HttpServerResponse.`writeCustomFrame(int type, int flags, Buffer payload)` Write an HTTP/2 frame to the response, allowing to extend the HTTP/2 protocol.
    `HttpClientRequest` | HttpClientRequest.`writeCustomFrame(int type, int flags, Buffer payload)` Write an HTTP/2 frame to the request, allowing to extend the HTTP/2 protocol.
    `Future<Void>` | WebSocketBase.`writeFinalBinaryFrame(Buffer data)` Write a final WebSocket binary frame to the connection
    `ServerWebSocket` | ServerWebSocket.`writeFinalBinaryFrame(Buffer data, Handler<AsyncResult<Void>> handler)`
    `WebSocket` | WebSocket.`writeFinalBinaryFrame(Buffer data, Handler<AsyncResult<Void>> handler)`
    `WebSocketBase` | WebSocketBase.`writeFinalBinaryFrame(Buffer data, Handler<AsyncResult<Void>> handler)` Same as `WebSocketBase.writeFinalBinaryFrame(Buffer, Handler)` but with an `handler` called when the operation completes
    `Future<Void>` | WebSocketBase.`writePing(Buffer data)` Like `WebSocketBase.writePing(Buffer, Handler)` but with an `handler` called when the message has been written or failed to be written.
    `WebSocketBase` | WebSocketBase.`writePing(Buffer data, Handler<AsyncResult<Void>> handler)` Writes a ping frame to the connection.
    `Future<Void>` | WebSocketBase.`writePong(Buffer data)` Like `WebSocketBase.writePong(Buffer, Handler)` but with an `handler` called when the message has been written or failed to be written.
    `WebSocketBase` | WebSocketBase.`writePong(Buffer data, Handler<AsyncResult<Void>> handler)` Writes a pong frame to the connection.

    Method parameters in io.vertx.core.http with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default HttpClientResponse` | HttpClientResponse.`body(Handler<AsyncResult<Buffer>> handler)` Same as `HttpClientResponse.body()` but with an `handler` called when the operation completes
    `default HttpServerRequest` | HttpServerRequest.`body(Handler<AsyncResult<Buffer>> handler)` Same as `HttpServerRequest.body()` but with an `handler` called when the operation completes
    `default HttpClientResponse` | HttpClientResponse.`bodyHandler(Handler<Buffer> bodyHandler)` Convenience method for receiving the entire request body in one piece.
    `HttpClientResponse` | HttpClientResponse.`handler(Handler<Buffer> handler)`
    `ServerWebSocket` | ServerWebSocket.`handler(Handler<Buffer> handler)`
    `WebSocket` | WebSocket.`handler(Handler<Buffer> handler)`
    `HttpServerFileUpload` | HttpServerFileUpload.`handler(Handler<Buffer> handler)`
    `HttpServerRequest` | HttpServerRequest.`handler(Handler<Buffer> handler)`
    `WebSocketBase` | WebSocketBase.`handler(Handler<Buffer> handler)`
    `HttpConnection` | HttpConnection.`ping(Buffer data, Handler<AsyncResult<Buffer>> pongHandler)` Send a PING frame to the remote endpoint.
    `default Future<Void>` | HttpServerResponse.`send(ReadStream<Buffer> body)` Like `HttpServerResponse.send(ReadStream, Handler)` but returns a `Future` of the asynchronous result
    `default Future<HttpClientResponse>` | HttpClientRequest.`send(ReadStream<Buffer> body)` Like `HttpClientRequest.send(ReadStream, Handler)` but returns a `Future` of the asynchronous result
    `default void` | HttpClientRequest.`send(ReadStream<Buffer> body, Handler<AsyncResult<HttpClientResponse>> handler)` Send the request with a stream `body`.
    `default void` | HttpServerResponse.`send(ReadStream<Buffer> body, Handler<AsyncResult<Void>> handler)` Send the request with a stream `body`.

  - ### Uses of Buffer in io.vertx.core.json

    Methods in io.vertx.core.json that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static Buffer` | Json.`encodeToBuffer(Object obj)` Encode a POJO to JSON using the underlying Jackson mapper.
    `Buffer` | JsonArray.`getBuffer(int pos)` Get the Buffer at position `pos` in the array.
    `Buffer` | JsonObject.`getBuffer(String key)` Get the `Buffer` value with the specified key.
    `Buffer` | JsonObject.`getBuffer(String key, Buffer def)` Like `JsonObject.getBuffer(String)` but specifying a default value to return if there is no entry.
    `Buffer` | JsonArray.`toBuffer()` Encode this JSON object as buffer.
    `Buffer` | JsonObject.`toBuffer()` Encode this JSON object as buffer.

    Methods in io.vertx.core.json with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static Object` | Json.`decodeValue(Buffer buf)` Decode a given JSON buffer.
    `static <T> T` | Json.`decodeValue(Buffer buf, Class<T> clazz)` Decode a given JSON buffer to a POJO of the given class type.
    `Buffer` | JsonObject.`getBuffer(String key, Buffer def)` Like `JsonObject.getBuffer(String)` but specifying a default value to return if there is no entry.
    `int` | JsonArray.`readFromBuffer(int pos, Buffer buffer)`
    `int` | JsonObject.`readFromBuffer(int pos, Buffer buffer)`
    `void` | JsonArray.`writeToBuffer(Buffer buffer)`
    `void` | JsonObject.`writeToBuffer(Buffer buffer)`

    Constructors in io.vertx.core.json with parameters of type Buffer
    Constructor and Description
    `JsonArray(Buffer buf)` Create an instance from a Buffer of JSON.
    `JsonObject(Buffer buf)` Create an instance from a buffer.

  - ### Uses of Buffer in io.vertx.core.json.jackson

    Methods in io.vertx.core.json.jackson that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | JacksonCodec.`toBuffer(Object object, boolean pretty)`
    `Buffer` | DatabindCodec.`toBuffer(Object object, boolean pretty)`

    Methods in io.vertx.core.json.jackson with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static JsonParser` | JacksonCodec.`createParser(Buffer buf)`
    `static JsonParser` | DatabindCodec.`createParser(Buffer buf)`
    `static <T> T` | JacksonCodec.`decodeValue(Buffer buf, TypeReference<T> type)` Decode a given JSON buffer to a POJO of the given class type.
    `Object` | JacksonCodec.`fromBuffer(Buffer buf)`
    `<T> T` | JacksonCodec.`fromBuffer(Buffer json, Class<T> clazz)`
    `<T> T` | DatabindCodec.`fromBuffer(Buffer buf, Class<T> clazz)`
    `<T> T` | JacksonCodec.`fromBuffer(Buffer buf, TypeReference<T> typeRef)`
    `<T> T` | DatabindCodec.`fromBuffer(Buffer buf, TypeReference<T> typeRef)`

  - ### Uses of Buffer in io.vertx.core.net

    Methods in io.vertx.core.net that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | PemKeyCertOptions.`getCertValue()` Get the first certificate as a buffer
    `Buffer` | PemKeyCertOptions.`getKeyValue()` Get the first key as a buffer
    `Buffer` | PfxOptions.`getValue()` Get the store as a buffer
    `Buffer` | JksOptions.`getValue()` Get the key store as a buffer

    Methods in io.vertx.core.net that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `List<Buffer>` | PemKeyCertOptions.`getCertValues()` Get all the certificates as a list of buffer
    `List<Buffer>` | PemTrustOptions.`getCertValues()`
    `List<Buffer>` | TCPSSLOptions.`getCrlValues()` Get the CRL values
    `List<Buffer>` | PemKeyCertOptions.`getKeyValues()` Get all the keys as a list of buffer

    Methods in io.vertx.core.net with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `PemKeyCertOptions` | PemKeyCertOptions.`addCertValue(Buffer certValue)` Add a certificate as a buffer
    `PemTrustOptions` | PemTrustOptions.`addCertValue(Buffer certValue)` Add a certificate value
    `TCPSSLOptions` | TCPSSLOptions.`addCrlValue(Buffer crlValue)` Add a CRL value
    `NetServerOptions` | NetServerOptions.`addCrlValue(Buffer crlValue)`
    `ClientOptionsBase` | ClientOptionsBase.`addCrlValue(Buffer crlValue)`
    `NetClientOptions` | NetClientOptions.`addCrlValue(Buffer crlValue)`
    `PemKeyCertOptions` | PemKeyCertOptions.`addKeyValue(Buffer keyValue)` Add a key as a buffer
    `PemKeyCertOptions` | PemKeyCertOptions.`setCertValue(Buffer certValue)` Set the first certificate as a buffer, replacing the previous certificates buffers
    `PemKeyCertOptions` | PemKeyCertOptions.`setKeyValue(Buffer keyValue)` Set the first key a a buffer, replacing the previous keys buffers
    `PfxOptions` | PfxOptions.`setValue(Buffer value)` Set the store as a buffer
    `JksOptions` | JksOptions.`setValue(Buffer value)` Set the key store as a buffer
    `void` | NetSocket.`write(Buffer message, Handler<AsyncResult<Void>> handler)` Like `WriteStream.write(Object)` but with an `handler` called when the message has been written or failed to be written.

    Method parameters in io.vertx.core.net with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `NetSocket` | NetSocket.`handler(Handler<Buffer> handler)`
    `PemKeyCertOptions` | PemKeyCertOptions.`setCertValues(List<Buffer> certValues)` Set all the certificates as a list of buffer
    `PemKeyCertOptions` | PemKeyCertOptions.`setKeyValues(List<Buffer> keyValues)` Set all the keys as a list of buffer

  - ### Uses of Buffer in io.vertx.core.parsetools

    Methods in io.vertx.core.parsetools that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | JsonEvent.`binaryValue()` Return the binary value.

    Methods in io.vertx.core.parsetools with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `void` | RecordParser.`delimitedMode(Buffer delim)` Flip the parser into delimited mode, and where the delimiter can be represented by the delimiter `delim`.
    `void` | RecordParser.`handle(Buffer buffer)` This method is called to provide the parser with data.
    `static RecordParser` | RecordParser.`newDelimited(Buffer delim)` Create a new `RecordParser` instance, initially in delimited mode, and where the delimiter can be represented by the `Buffer` delim.
    `static RecordParser` | RecordParser.`newDelimited(Buffer delim, Handler<Buffer> output)` Like `RecordParser.newDelimited(Buffer)` but set the `output` that will receive whole records which have been parsed.
    `static RecordParser` | RecordParser.`newDelimited(Buffer delim, ReadStream<Buffer> stream)` Like `RecordParser.newDelimited(Buffer)` but wraps the `stream`.
    `JsonParser` | JsonParser.`write(Buffer buffer)` Handle a `Buffer`, pretty much like calling `Handler.handle(Object)`.

    Method parameters in io.vertx.core.parsetools with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `RecordParser` | RecordParser.`handler(Handler<Buffer> handler)`
    `static RecordParser` | RecordParser.`newDelimited(Buffer delim, Handler<Buffer> output)` Like `RecordParser.newDelimited(Buffer)` but set the `output` that will receive whole records which have been parsed.
    `static RecordParser` | RecordParser.`newDelimited(Buffer delim, ReadStream<Buffer> stream)` Like `RecordParser.newDelimited(Buffer)` but wraps the `stream`.
    `static RecordParser` | RecordParser.`newDelimited(String delim, Handler<Buffer> output)` Like `RecordParser.newDelimited(String)` but set the `output` that will receive whole records which have been parsed.
    `static RecordParser` | RecordParser.`newDelimited(String delim, ReadStream<Buffer> stream)` Like `RecordParser.newDelimited(String)` but wraps the `stream`.
    `static RecordParser` | RecordParser.`newFixed(int size, Handler<Buffer> output)` Like `RecordParser.newFixed(int)` but set the `output` that will receive whole records which have been parsed.
    `static RecordParser` | RecordParser.`newFixed(int size, ReadStream<Buffer> stream)` Like `RecordParser.newFixed(int)` but wraps the `stream`.
    `static JsonParser` | JsonParser.`newParser(ReadStream<Buffer> stream)` Create a new `JsonParser` instance.
    `void` | RecordParser.`setOutput(Handler<Buffer> output)`

  - ### Uses of Buffer in io.vertx.core.spi.cluster

    Methods in io.vertx.core.spi.cluster with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `int` | RegistrationInfo.`readFromBuffer(int start, Buffer buffer)`
    `int` | NodeInfo.`readFromBuffer(int start, Buffer buffer)`
    `void` | RegistrationInfo.`writeToBuffer(Buffer buffer)`
    `void` | NodeInfo.`writeToBuffer(Buffer buffer)`

  - ### Uses of Buffer in io.vertx.core.spi.json

    Methods in io.vertx.core.spi.json that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Buffer` | JsonCodec.`toBuffer(Object object)` Like `JsonCodec.toString(Object)` but with a json `Buffer`
    `Buffer` | JsonCodec.`toBuffer(Object object, boolean pretty)` Like `JsonCodec.toString(Object, boolean)` but with a json `Buffer`

    Methods in io.vertx.core.spi.json with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `<T> T` | JsonCodec.`fromBuffer(Buffer json, Class<T> clazz)` Like `JsonCodec.fromString(String, Class)` but with a json `Buffer`

  - ### Uses of Buffer in io.vertx.ext.auth

    Methods in io.vertx.ext.auth with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `int` | AbstractUser.`readFromBuffer(int pos, Buffer buffer)` Deprecated.
    `void` | AbstractUser.`writeToBuffer(Buffer buff)` Deprecated.

  - ### Uses of Buffer in io.vertx.ext.auth.oauth2

    Methods in io.vertx.ext.auth.oauth2 that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | OAuth2Response.`body()` Deprecated. The HTTP response body as a buffer

    Methods in io.vertx.ext.auth.oauth2 with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Future<OAuth2Response>` | AccessToken.`fetch(HttpMethod method, String resource, JsonObject headers, Buffer payload)` Deprecated. Fetches a JSON resource using this Access Token.
    `AccessToken` | AccessToken.`fetch(HttpMethod method, String resource, JsonObject headers, Buffer payload, Handler<AsyncResult<OAuth2Response>> callback)` Deprecated. Fetches a JSON resource using this Access Token.

  - ### Uses of Buffer in io.vertx.ext.consul

    Methods in io.vertx.ext.consul with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `ConsulClientOptions` | ConsulClientOptions.`addCrlValue(Buffer crlValue)` Add a CRL value

  - ### Uses of Buffer in io.vertx.ext.mail

    Methods in io.vertx.ext.mail that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | MailAttachment.`getData()` get the data

    Methods in io.vertx.ext.mail that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `ReadStream<Buffer>` | MailAttachment.`getStream()` Gets the data stream.

    Methods in io.vertx.ext.mail with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `MailConfig` | MailConfig.`addCrlValue(Buffer crlValue)`
    `MailAttachment` | MailAttachment.`setData(Buffer data)` set the data

    Method parameters in io.vertx.ext.mail with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `MailAttachment` | MailAttachment.`setStream(ReadStream<Buffer> stream)` Sets the data stream.

  - ### Uses of Buffer in io.vertx.ext.mail.mailencoder

    Methods in io.vertx.ext.mail.mailencoder that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `ReadStream<Buffer>` | EncodedPart.`bodyStream(Context context)`
    `ReadStream<Buffer>` | EncodedPart.`dkimBodyStream(Context context)`

  - ### Uses of Buffer in io.vertx.ext.mongo

    Method parameters in io.vertx.ext.mongo with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Long>` | MongoGridFsClient.`downloadByFileName(WriteStream<Buffer> stream, String fileName)` Like `MongoGridFsClient.downloadByFileName(WriteStream, String, Handler)` but returns a `Future` of the asynchronous result
    `MongoGridFsClient` | MongoGridFsClient.`downloadByFileName(WriteStream<Buffer> stream, String fileName, Handler<AsyncResult<Long>> resultHandler)`
    `Future<Long>` | MongoGridFsClient.`downloadByFileNameWithOptions(WriteStream<Buffer> stream, String fileName, GridFsDownloadOptions options)` Like `MongoGridFsClient.downloadByFileNameWithOptions(WriteStream, String, GridFsDownloadOptions, Handler)` but returns a `Future` of the asynchronous result
    `MongoGridFsClient` | MongoGridFsClient.`downloadByFileNameWithOptions(WriteStream<Buffer> stream, String fileName, GridFsDownloadOptions options, Handler<AsyncResult<Long>> resultHandler)`
    `Future<Long>` | MongoGridFsClient.`downloadById(WriteStream<Buffer> stream, String id)` Like `MongoGridFsClient.downloadById(WriteStream, String, Handler)` but returns a `Future` of the asynchronous result
    `MongoGridFsClient` | MongoGridFsClient.`downloadById(WriteStream<Buffer> stream, String id, Handler<AsyncResult<Long>> resultHandler)`
    `Future<String>` | MongoGridFsClient.`uploadByFileName(ReadStream<Buffer> stream, String fileName)` Like `MongoGridFsClient.uploadByFileName(ReadStream, String, Handler)` but returns a `Future` of the asynchronous result
    `MongoGridFsClient` | MongoGridFsClient.`uploadByFileName(ReadStream<Buffer> stream, String fileName, Handler<AsyncResult<String>> resultHandler)`
    `Future<String>` | MongoGridFsClient.`uploadByFileNameWithOptions(ReadStream<Buffer> stream, String fileName, GridFsUploadOptions options)` Like `MongoGridFsClient.uploadByFileNameWithOptions(ReadStream, String, GridFsUploadOptions, Handler)` but returns a `Future` of the asynchronous result
    `MongoGridFsClient` | MongoGridFsClient.`uploadByFileNameWithOptions(ReadStream<Buffer> stream, String fileName, GridFsUploadOptions options, Handler<AsyncResult<String>> resultHandler)`

  - ### Uses of Buffer in io.vertx.ext.shell.term

    Methods in io.vertx.ext.shell.term that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static Buffer` | HttpTermOptions.`defaultShellHtmlResource()`
    `static Buffer` | HttpTermOptions.`defaultTermJsResource()`
    `static Buffer` | HttpTermOptions.`defaultVertxShellJsResource()`
    `Buffer` | HttpTermOptions.`getShellHtmlResource()`
    `Buffer` | HttpTermOptions.`getTermJsResource()`
    `Buffer` | HttpTermOptions.`getVertsShellJsResource()`

    Methods in io.vertx.ext.shell.term with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `HttpTermOptions` | HttpTermOptions.`addCrlValue(Buffer crlValue)`
    `TelnetTermOptions` | TelnetTermOptions.`addCrlValue(Buffer crlValue)`
    `HttpTermOptions` | HttpTermOptions.`setShellHtmlResource(Buffer shellHtmlResource)` Set `shell.html` resource to use.
    `HttpTermOptions` | HttpTermOptions.`setTermJsResource(Buffer termJsResource)` Set `term.js` resource to use.
    `HttpTermOptions` | HttpTermOptions.`setVertsShellJsResource(Buffer vertsShellJsResource)` Set `vertxshell.js` resource to use.

  - ### Uses of Buffer in io.vertx.ext.stomp

    Methods in io.vertx.ext.stomp that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | Frame.`getBody()`
    `Buffer` | Frame.`toBuffer()` This method does not enforce the trailing line option.
    `Buffer` | Frame.`toBuffer(boolean trailingLine)` Creates a buffer for the current frame.

    Methods in io.vertx.ext.stomp with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Frame>` | StompClientConnection.`send(Map<String,String> headers, Buffer body)` Sends a `SEND` frame to the server.
    `StompClientConnection` | StompClientConnection.`send(Map<String,String> headers, Buffer body, Handler<AsyncResult<Frame>> receiptHandler)` Sends a `SEND` frame to the server.
    `Future<Frame>` | StompClientConnection.`send(String destination, Buffer body)` Sends a `SEND` frame to the server to the given destination.
    `StompClientConnection` | StompClientConnection.`send(String destination, Buffer body, Handler<AsyncResult<Frame>> receiptHandler)` Sends a `SEND` frame to the server to the given destination.
    `Future<Frame>` | StompClientConnection.`send(String destination, Map<String,String> headers, Buffer body)` Sends a `SEND` frame to the server to the given destination.
    `StompClientConnection` | StompClientConnection.`send(String destination, Map<String,String> headers, Buffer body, Handler<AsyncResult<Frame>> receiptHandler)` Sends a `SEND` frame to the server to the given destination.
    `Frame` | Frame.`setBody(Buffer body)` Sets the body of the frame.
    `StompServerConnection` | StompServerConnection.`write(Buffer buffer)` Writes the given buffer to the socket.

    Constructors in io.vertx.ext.stomp with parameters of type Buffer
    Constructor and Description
    `Frame(Frame.Command command, Map<String,String> headers, Buffer body)` Creates a new instance of `Frame`.

  - ### Uses of Buffer in io.vertx.ext.web

    Methods in io.vertx.ext.web that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | RoutingContext.`getBody()`

    Methods in io.vertx.ext.web with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Future<Void>` | RoutingContext.`end(Buffer buffer)` Shortcut to the response end.
    `void` | RoutingContext.`setBody(Buffer body)` Set the body.

  - ### Uses of Buffer in io.vertx.ext.web.api

    Methods in io.vertx.ext.web.api that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | OperationResponse.`getPayload()` Deprecated.

    Methods in io.vertx.ext.web.api with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static OperationResponse` | OperationResponse.`completedWithJson(Buffer json)` Deprecated.
    `static OperationResponse` | OperationResponse.`completedWithPlainText(Buffer text)` Deprecated.
    `OperationResponse` | OperationResponse.`setPayload(Buffer payload)` Deprecated.

    Constructors in io.vertx.ext.web.api with parameters of type Buffer
    Constructor and Description
    `OperationResponse(Integer statusCode, String statusMessage, Buffer payload, MultiMap headers)` Deprecated.

  - ### Uses of Buffer in io.vertx.ext.web.api.service

    Methods in io.vertx.ext.web.api.service that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | ServiceResponse.`getPayload()`

    Methods in io.vertx.ext.web.api.service with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static ServiceResponse` | ServiceResponse.`completedWithJson(Buffer json)` Creates a `ServiceResponse` with status code 200, status message OK, content type `application/json` and `json` as body
    `static ServiceResponse` | ServiceResponse.`completedWithPlainText(Buffer text)` Creates a `ServiceResponse` with status code 200, status message OK, content type `text/plain` and `text` as body
    `ServiceResponse` | ServiceResponse.`setPayload(Buffer payload)`

    Constructors in io.vertx.ext.web.api.service with parameters of type Buffer
    Constructor and Description
    `ServiceResponse(Integer statusCode, String statusMessage, Buffer payload, MultiMap headers)`

  - ### Uses of Buffer in io.vertx.ext.web.client

    Methods in io.vertx.ext.web.client that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | HttpResponse.`bodyAsBuffer()`

    Methods in io.vertx.ext.web.client that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `HttpRequest<Buffer>` | WebClient.`delete(int port, String host, String requestURI)` Create an HTTP DELETE request to send to the server at the specified host and port.
    `HttpRequest<Buffer>` | WebClient.`delete(String requestURI)` Create an HTTP DELETE request to send to the server at the default host and port.
    `HttpRequest<Buffer>` | WebClient.`delete(String host, String requestURI)` Create an HTTP DELETE request to send to the server at the specified host and default port.
    `HttpRequest<Buffer>` | WebClient.`deleteAbs(String absoluteURI)` Create an HTTP DELETE request to send to the server using an absolute URI, specifying a response handler to receive the response
    `HttpRequest<Buffer>` | WebClient.`get(int port, String host, String requestURI)` Create an HTTP GET request to send to the server at the specified host and port.
    `HttpRequest<Buffer>` | WebClient.`get(String requestURI)` Create an HTTP GET request to send to the server at the default host and port.
    `HttpRequest<Buffer>` | WebClient.`get(String host, String requestURI)` Create an HTTP GET request to send to the server at the specified host and default port.
    `HttpRequest<Buffer>` | WebClient.`getAbs(String absoluteURI)` Create an HTTP GET request to send to the server using an absolute URI, specifying a response handler to receive the response
    `HttpRequest<Buffer>` | WebClient.`head(int port, String host, String requestURI)` Create an HTTP HEAD request to send to the server at the specified host and port.
    `HttpRequest<Buffer>` | WebClient.`head(String requestURI)` Create an HTTP HEAD request to send to the server at the default host and port.
    `HttpRequest<Buffer>` | WebClient.`head(String host, String requestURI)` Create an HTTP HEAD request to send to the server at the specified host and default port.
    `HttpRequest<Buffer>` | WebClient.`headAbs(String absoluteURI)` Create an HTTP HEAD request to send to the server using an absolute URI, specifying a response handler to receive the response
    `HttpRequest<Buffer>` | WebClient.`patch(int port, String host, String requestURI)` Create an HTTP PATCH request to send to the server at the specified host and port.
    `HttpRequest<Buffer>` | WebClient.`patch(String requestURI)` Create an HTTP PATCH request to send to the server at the default host and port.
    `HttpRequest<Buffer>` | WebClient.`patch(String host, String requestURI)` Create an HTTP PATCH request to send to the server at the specified host and default port.
    `HttpRequest<Buffer>` | WebClient.`patchAbs(String absoluteURI)` Create an HTTP PATCH request to send to the server using an absolute URI, specifying a response handler to receive the response
    `HttpRequest<Buffer>` | WebClient.`post(int port, String host, String requestURI)` Create an HTTP POST request to send to the server at the specified host and port.
    `HttpRequest<Buffer>` | WebClient.`post(String requestURI)` Create an HTTP POST request to send to the server at the default host and port.
    `HttpRequest<Buffer>` | WebClient.`post(String host, String requestURI)` Create an HTTP POST request to send to the server at the specified host and default port.
    `HttpRequest<Buffer>` | WebClient.`postAbs(String absoluteURI)` Create an HTTP POST request to send to the server using an absolute URI, specifying a response handler to receive the response
    `HttpRequest<Buffer>` | WebClient.`put(int port, String host, String requestURI)` Create an HTTP PUT request to send to the server at the specified host and port.
    `HttpRequest<Buffer>` | WebClient.`put(String requestURI)` Create an HTTP PUT request to send to the server at the default host and port.
    `HttpRequest<Buffer>` | WebClient.`put(String host, String requestURI)` Create an HTTP PUT request to send to the server at the specified host and default port.
    `HttpRequest<Buffer>` | WebClient.`putAbs(String absoluteURI)` Create an HTTP PUT request to send to the server using an absolute URI, specifying a response handler to receive the response
    `HttpRequest<Buffer>` | WebClient.`request(HttpMethod method, int port, String host, String requestURI)` Create an HTTP request to send to the server at the specified host and port.
    `HttpRequest<Buffer>` | WebClient.`request(HttpMethod method, RequestOptions options)` Create an HTTP request to send to the server at the specified host and port.
    `HttpRequest<Buffer>` | WebClient.`request(HttpMethod method, SocketAddress serverAddress, int port, String host, String requestURI)` Like `WebClient.request(HttpMethod, int, String, String)` using the `serverAddress` parameter to connect to the server instead of the `port` and `host` parameters.
    `HttpRequest<Buffer>` | WebClient.`request(HttpMethod method, SocketAddress serverAddress, RequestOptions options)` Like `WebClient.request(HttpMethod, RequestOptions)` using the `serverAddress` parameter to connect to the server instead of the `options` parameter.
    `HttpRequest<Buffer>` | WebClient.`request(HttpMethod method, SocketAddress serverAddress, String requestURI)` Like `WebClient.request(HttpMethod, String)` using the `serverAddress` parameter to connect to the server instead of the default port and default host.
    `HttpRequest<Buffer>` | WebClient.`request(HttpMethod method, SocketAddress serverAddress, String host, String requestURI)` Like `WebClient.request(HttpMethod, String, String)` using the `serverAddress` parameter to connect to the server instead of the default port and `host` parameter.
    `HttpRequest<Buffer>` | WebClient.`request(HttpMethod method, String requestURI)` Create an HTTP request to send to the server at the default host and port.
    `HttpRequest<Buffer>` | WebClient.`request(HttpMethod method, String host, String requestURI)` Create an HTTP request to send to the server at the specified host and default port.
    `HttpRequest<Buffer>` | WebClient.`requestAbs(HttpMethod method, SocketAddress serverAddress, String absoluteURI)` Like `WebClient.requestAbs(HttpMethod, String)` using the `serverAddress` parameter to connect to the server instead of the `absoluteURI` parameter.
    `HttpRequest<Buffer>` | WebClient.`requestAbs(HttpMethod method, String absoluteURI)` Create an HTTP request to send to the server using an absolute URI

    Methods in io.vertx.ext.web.client with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `WebClientOptions` | WebClientOptions.`addCrlValue(Buffer crlValue)`
    `HttpRequest<T>` | HttpRequest.`basicAuthentication(Buffer id, Buffer password)` Configure the request to perform basic access authentication.
    `default Future<HttpResponse<T>>` | HttpRequest.`sendBuffer(Buffer body)`
    `void` | HttpRequest.`sendBuffer(Buffer body, Handler<AsyncResult<HttpResponse<T>>> handler)` Like `HttpRequest.send(Handler)` but with an HTTP request `body` buffer.

    Method parameters in io.vertx.ext.web.client with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Future<HttpResponse<T>>` | HttpRequest.`sendStream(ReadStream<Buffer> body)`
    `void` | HttpRequest.`sendStream(ReadStream<Buffer> body, Handler<AsyncResult<HttpResponse<T>>> handler)` Like `HttpRequest.send(Handler)` but with an HTTP request `body` stream.

  - ### Uses of Buffer in io.vertx.ext.web.codec

    Methods in io.vertx.ext.web.codec that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static BodyCodec<Buffer>` | BodyCodec.`buffer()`

    Method parameters in io.vertx.ext.web.codec with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static <T> BodyCodec<T>` | BodyCodec.`create(java.util.function.Function<Buffer,T> decode)` Create a codec that buffers the entire body and then apply the `decode` function and returns the result.
    `static BodyCodec<Void>` | BodyCodec.`pipe(WriteStream<Buffer> stream)` A body codec that pipes the body to a write stream.
    `static BodyCodec<Void>` | BodyCodec.`pipe(WriteStream<Buffer> stream, boolean close)` A body codec that pipes the body to a write stream.

  - ### Uses of Buffer in io.vertx.ext.web.common.template

    Methods in io.vertx.ext.web.common.template that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Future<Buffer>` | TemplateEngine.`render(JsonObject context, String templateFileName)`
    `default Future<Buffer>` | TemplateEngine.`render(Map<String,Object> context, String templateFileName)`

    Method parameters in io.vertx.ext.web.common.template with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default void` | TemplateEngine.`render(JsonObject context, String templateFileName, Handler<AsyncResult<Buffer>> handler)` Render the template.
    `void` | TemplateEngine.`render(Map<String,Object> context, String templateFileName, Handler<AsyncResult<Buffer>> handler)` Render the template.

  - ### Uses of Buffer in io.vertx.ext.web.handler.sockjs

    Methods in io.vertx.ext.web.handler.sockjs with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Future<Void>` | SockJSSocket.`write(Buffer data)`
    `void` | SockJSSocket.`write(Buffer data, Handler<AsyncResult<Void>> handler)`

    Method parameters in io.vertx.ext.web.handler.sockjs with type arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `SockJSSocket` | SockJSSocket.`handler(Handler<Buffer> handler)`

  - ### Uses of Buffer in io.vertx.ext.web.multipart

    Methods in io.vertx.ext.web.multipart that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | FormDataPart.`content()`

    Methods in io.vertx.ext.web.multipart with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `MultipartForm` | MultipartForm.`binaryFileUpload(String name, String filename, Buffer content, String mediaType)` Add a binary file upload form data part.
    `MultipartForm` | MultipartForm.`textFileUpload(String name, String filename, Buffer content, String mediaType)` Add a text file upload form data part.

  - ### Uses of Buffer in io.vertx.ext.web.validation

    Methods in io.vertx.ext.web.validation that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | RequestParameter.`getBuffer()`

  - ### Uses of Buffer in io.vertx.kafka.client.producer

    Methods in io.vertx.kafka.client.producer that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | KafkaHeader.`value()`

    Methods in io.vertx.kafka.client.producer with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `KafkaProducerRecord<K,V>` | KafkaProducerRecord.`addHeader(String key, Buffer value)` Like `KafkaProducerRecord.addHeader(KafkaHeader)` but with a key/value pair
    `static KafkaHeader` | KafkaHeader.`header(String key, Buffer value)`

  - ### Uses of Buffer in io.vertx.kafka.client.serialization

    Methods in io.vertx.kafka.client.serialization that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | BufferDeserializer.`deserialize(String topic, byte[] data)`

    Methods in io.vertx.kafka.client.serialization that return types with arguments of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static org.apache.kafka.common.serialization.Serde<Buffer>` | VertxSerdes.`Buffer()`

    Methods in io.vertx.kafka.client.serialization with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `byte[]` | BufferSerializer.`serialize(String topic, Buffer data)`

  - ### Uses of Buffer in io.vertx.mqtt

    Methods in io.vertx.mqtt with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `MqttClientOptions` | MqttClientOptions.`addCrlValue(Buffer crlValue)`
    `MqttServerOptions` | MqttServerOptions.`addCrlValue(Buffer crlValue)`
    `Future<Integer>` | MqttClient.`publish(String topic, Buffer payload, io.netty.handler.codec.mqtt.MqttQoS qosLevel, boolean isDup, boolean isRetain)` Sends the PUBLISH message to the remote MQTT server
    `Future<Integer>` | MqttEndpoint.`publish(String topic, Buffer payload, io.netty.handler.codec.mqtt.MqttQoS qosLevel, boolean isDup, boolean isRetain)` Sends the PUBLISH message to the remote MQTT client
    `MqttClient` | MqttClient.`publish(String topic, Buffer payload, io.netty.handler.codec.mqtt.MqttQoS qosLevel, boolean isDup, boolean isRetain, Handler<AsyncResult<Integer>> publishSentHandler)` Sends the PUBLISH message to the remote MQTT server
    `MqttEndpoint` | MqttEndpoint.`publish(String topic, Buffer payload, io.netty.handler.codec.mqtt.MqttQoS qosLevel, boolean isDup, boolean isRetain, Handler<AsyncResult<Integer>> publishSentHandler)` Sends the PUBLISH message to the remote MQTT server
    `Future<Integer>` | MqttEndpoint.`publish(String topic, Buffer payload, io.netty.handler.codec.mqtt.MqttQoS qosLevel, boolean isDup, boolean isRetain, int messageId)` Like `MqttEndpoint.publish(String, Buffer, MqttQoS, boolean, boolean, int, Handler)` but returns a `Future` of the asynchronous result
    `MqttEndpoint` | MqttEndpoint.`publish(String topic, Buffer payload, io.netty.handler.codec.mqtt.MqttQoS qosLevel, boolean isDup, boolean isRetain, int messageId, Handler<AsyncResult<Integer>> publishSentHandler)` Sends the PUBLISH message to the remote MQTT server explicitly specifying the messageId

  - ### Uses of Buffer in io.vertx.mqtt.messages

    Methods in io.vertx.mqtt.messages that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | MqttPublishMessage.`payload()`

  - ### Uses of Buffer in io.vertx.mysqlclient

    Methods in io.vertx.mysqlclient that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | MySQLConnectOptions.`getServerRsaPublicKeyValue()` Get the value of the server RSA public key.
    `Buffer` | MySQLAuthOptions.`getServerRsaPublicKeyValue()` Get the value of the server RSA public key.

    Methods in io.vertx.mysqlclient with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `MySQLConnectOptions` | MySQLConnectOptions.`addCrlValue(Buffer crlValue)`
    `MySQLConnectOptions` | MySQLConnectOptions.`setServerRsaPublicKeyValue(Buffer serverRsaPublicKeyValue)` Set the value of server RSA public key which is mostly used for encrypting password under insecure connections when performing authentication.
    `MySQLAuthOptions` | MySQLAuthOptions.`setServerRsaPublicKeyValue(Buffer serverRsaPublicKeyValue)` Set the value of server RSA public key which is mostly used for encrypting password under insecure connections when performing authentication.

  - ### Uses of Buffer in io.vertx.pgclient

    Methods in io.vertx.pgclient with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `PgConnectOptions` | PgConnectOptions.`addCrlValue(Buffer crlValue)`

  - ### Uses of Buffer in io.vertx.rabbitmq

    Methods in io.vertx.rabbitmq that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | RabbitMQMessage.`body()`

    Methods in io.vertx.rabbitmq with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Future<Void>` | RabbitMQClient.`basicPublish(String exchange, String routingKey, com.rabbitmq.client.BasicProperties properties, Buffer body)` Like `RabbitMQClient.basicPublish(String, String, BasicProperties, Buffer, Handler)` but returns a `Future` of the asynchronous result
    `void` | RabbitMQClient.`basicPublish(String exchange, String routingKey, com.rabbitmq.client.BasicProperties properties, Buffer body, Handler<AsyncResult<Void>> resultHandler)` Publish a message.
    `Future<Void>` | RabbitMQClient.`basicPublish(String exchange, String routingKey, Buffer body)` Like `RabbitMQClient.basicPublish(String, String, Buffer, Handler)` but returns a `Future` of the asynchronous result
    `void` | RabbitMQClient.`basicPublish(String exchange, String routingKey, Buffer body, Handler<AsyncResult<Void>> resultHandler)` Publish a message.
    `Future<Void>` | RabbitMQClient.`basicPublishWithDeliveryTag(String exchange, String routingKey, com.rabbitmq.client.BasicProperties properties, Buffer body, Handler<Long> deliveryTagHandler)` Publish a message.
    `void` | RabbitMQClient.`basicPublishWithDeliveryTag(String exchange, String routingKey, com.rabbitmq.client.BasicProperties properties, Buffer body, Handler<Long> deliveryTagHandler, Handler<AsyncResult<Void>> resultHandler)` Publish a message.
    `Future<Void>` | RabbitMQPublisher.`publish(String exchange, String routingKey, com.rabbitmq.client.BasicProperties properties, Buffer body)` Like `#basicPublish(String, String, BasicProperties, Buffer, Handler)` but returns a `Future` of the asynchronous result
    `void` | RabbitMQPublisher.`publish(String exchange, String routingKey, com.rabbitmq.client.BasicProperties properties, Buffer body, Handler<AsyncResult<Void>> resultHandler)` Publish a message.

  - ### Uses of Buffer in io.vertx.reactivex.core.buffer

    Methods in io.vertx.reactivex.core.buffer that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | Buffer.`getDelegate()`

    Methods in io.vertx.reactivex.core.buffer with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static Buffer` | Buffer.`newInstance(Buffer arg)`
    `int` | Buffer.`readFromBuffer(int pos, Buffer buffer)`
    `void` | Buffer.`writeToBuffer(Buffer buffer)`

    Constructors in io.vertx.reactivex.core.buffer with parameters of type Buffer
    Constructor and Description
    `Buffer(Buffer delegate)`

  - ### Uses of Buffer in io.vertx.redis.client

    Methods in io.vertx.redis.client that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Buffer` | Response.`toBuffer()` Get this response as Buffer.

    Methods in io.vertx.redis.client with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Request` | Request.`arg(Buffer arg)` Adds a String key argument

  - ### Uses of Buffer in io.vertx.rxjava.core.buffer

    Methods in io.vertx.rxjava.core.buffer that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `Buffer` | Buffer.`getDelegate()`

    Methods in io.vertx.rxjava.core.buffer with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `static Buffer` | Buffer.`newInstance(Buffer arg)`
    `int` | Buffer.`readFromBuffer(int pos, Buffer buffer)`
    `void` | Buffer.`writeToBuffer(Buffer buffer)`

    Constructors in io.vertx.rxjava.core.buffer with parameters of type Buffer
    Constructor and Description
    `Buffer(Buffer delegate)`

  - ### Uses of Buffer in io.vertx.serviceproxy

    Methods in io.vertx.serviceproxy with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `ServiceException` | ServiceExceptionMessageCodec.`decodeFromWire(int pos, Buffer buffer)`
    `void` | ServiceExceptionMessageCodec.`encodeToWire(Buffer buffer, ServiceException body)`

  - ### Uses of Buffer in io.vertx.sqlclient

    Methods in io.vertx.sqlclient that return Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Buffer` | Tuple.`getBuffer(int pos)` Get a buffer value at `pos`.
    `default Buffer` | Row.`getBuffer(String name)` Get a buffer value at `pos`.
    `default Buffer[]` | Tuple.`getBufferArray(int pos)` Get an array of `Buffer` value at `pos`.
    `default Buffer[]` | Row.`getBufferArray(String name)` Get an array of `Buffer` value at `pos`.

    Methods in io.vertx.sqlclient with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `default Tuple` | Tuple.`addBuffer(Buffer value)` Add a buffer value at the end of the tuple.
    `default Tuple` | Tuple.`addBufferArray(Buffer[] value)` Add an array of `Buffer` value at the end of the tuple.

  - ### Uses of Buffer in io.vertx.tracing.zipkin

    Methods in io.vertx.tracing.zipkin with parameters of type Buffer
    Modifier and Type | Method and Description
    --- | ---
    `HttpSenderOptions` | HttpSenderOptions.`addCrlValue(Buffer crlValue)`

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