HttpServerRequest (Vert.x Core 4.0.0.Beta1 API)

All Superinterfaces:

ReadStream<Buffer>, StreamBase
```
public interface HttpServerRequest
extends ReadStream<Buffer>
```
Represents a server-side HTTP request.
Instances are created for each request and passed to the user via a handler.
Each instance of this class is associated with a corresponding HttpServerResponse instance via response().
It implements ReadStream so it can be used with Pump to pump data with flow control.

Author:

Tim Fox

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`String`	`absoluteURI()`
`Future<Buffer>`	`body()` Convenience method for receiving the entire request body in one piece.
`default HttpServerRequest`	`body(Handler<AsyncResult<Buffer>> handler)` Same as `body()` but with an `handler` called when the operation completes
`default HttpServerRequest`	`bodyHandler(Handler<Buffer> bodyHandler)` Convenience method for receiving the entire request body in one piece.
`long`	`bytesRead()`
`HttpConnection`	`connection()`
`default int`	`cookieCount()`
`Map<String,Cookie>`	`cookieMap()`
`HttpServerRequest`	`customFrameHandler(Handler<HttpFrame> handler)` Set a custom frame handler.
`HttpServerRequest`	`endHandler(Handler<Void> endHandler)` Set an end handler.
`HttpServerRequest`	`exceptionHandler(Handler<Throwable> handler)` Set an exception handler on the read stream.
`HttpServerRequest`	`fetch(long amount)` Fetch the specified `amount` of elements.
`MultiMap`	`formAttributes()` Returns a map of all form attributes in the request.
`default Cookie`	`getCookie(String name)` Get the cookie with the specified name.
`String`	`getFormAttribute(String attributeName)` Return the first form attribute value with the specified name
`default String`	`getHeader(CharSequence headerName)` Return the first header value with the specified name
`default String`	`getHeader(String headerName)` Return the first header value with the specified name
`default String`	`getParam(String paramName)` Return the first param value with the specified name
`HttpServerRequest`	`handler(Handler<Buffer> handler)` Set a data handler.
`MultiMap`	`headers()`
`String`	`host()`
`boolean`	`isEnded()` Has the request ended? I.e.
`boolean`	`isExpectMultipart()`
`default boolean`	`isSSL()`
`default SocketAddress`	`localAddress()`
`HttpMethod`	`method()`
`NetSocket`	`netSocket()` Get a net socket for the underlying connection of this request.
`MultiMap`	`params()`
`String`	`path()`
`HttpServerRequest`	`pause()` Pause the `ReadStream`, it sets the buffer in `fetch` mode and clears the actual demand.
`X509Certificate[]`	`peerCertificateChain()` Note: Java SE 5+ recommends to use javax.net.ssl.SSLSession#getPeerCertificates() instead of of javax.net.ssl.SSLSession#getPeerCertificateChain() which this method is based on.
`String`	`query()`
`default SocketAddress`	`remoteAddress()`
`HttpServerResponse`	`response()`
`HttpServerRequest`	`resume()` Resume reading, and sets the buffer in `flowing` mode.
`String`	`scheme()`
`HttpServerRequest`	`setExpectMultipart(boolean expect)` Call this with true if you are expecting a multi-part body to be submitted in the request.
`default SSLSession`	`sslSession()`
`default StreamPriority`	`streamPriority()`
`HttpServerRequest`	`streamPriorityHandler(Handler<StreamPriority> handler)` Set an handler for stream priority changes
`ServerWebSocket`	`upgrade()` Upgrade the connection to a WebSocket connection.
`HttpServerRequest`	`uploadHandler(Handler<HttpServerFileUpload> uploadHandler)` Set an upload handler.
`String`	`uri()`
`HttpVersion`	`version()`

Methods inherited from interface io.vertx.core.streams.ReadStream
pipe, pipeTo, pipeTo

- Method Detail
  - exceptionHandler
```
HttpServerRequest exceptionHandler(Handler<Throwable> handler)
```
    Description copied from interface: ReadStream
    
    Set an exception handler on the read stream.
    
    Specified by:
    
    exceptionHandler in interface ReadStream<Buffer>
    
    Specified by:
    
    exceptionHandler in interface StreamBase
    
    Parameters:
    
    handler - the exception handler
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - handler
```
HttpServerRequest handler(Handler<Buffer> handler)
```
    Description copied from interface: ReadStream
    
    Set a data handler. As data is read, the handler will be called with the data.
    
    Specified by:
    
    handler in interface ReadStream<Buffer>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - pause
```
HttpServerRequest pause()
```
    Description copied from interface: ReadStream
    
    Pause the ReadStream, it sets the buffer in fetch mode and clears the actual demand.
    While it's paused, no data will be sent to the data handler.
    
    Specified by:
    
    pause in interface ReadStream<Buffer>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - resume
```
HttpServerRequest resume()
```
    Description copied from interface: ReadStream
    
    Resume reading, and sets the buffer in flowing mode.
    If the ReadStream has been paused, reading will recommence on it.
    
    Specified by:
    
    resume in interface ReadStream<Buffer>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - fetch
```
HttpServerRequest fetch(long amount)
```
    Description copied from interface: ReadStream
    
    Fetch the specified amount of elements. If the ReadStream has been paused, reading will recommence with the specified amount of items, otherwise the specified amount will be added to the current stream demand.
    
    Specified by:
    
    fetch in interface ReadStream<Buffer>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - endHandler
```
HttpServerRequest endHandler(Handler<Void> endHandler)
```
    Description copied from interface: ReadStream
    
    Set an end handler. Once the stream has ended, and there is no more data to be read, this handler will be called.
    
    Specified by:
    
    endHandler in interface ReadStream<Buffer>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - version
```
HttpVersion version()
```
    Returns:
    
    the HTTP version of the request
  - method
```
HttpMethod method()
```
    Returns:
    
    the HTTP method for the request.
  - isSSL
```
default boolean isSSL()
```
    Returns:
    
    true if this NetSocket is encrypted via SSL/TLS
  - scheme
```
String scheme()
```
    Returns:
    
    the scheme of the request
  - uri
```
String uri()
```
    Returns:
    
    the URI of the request. This is usually a relative URI
  - path
```
String path()
```
    Returns:
    
    The path part of the uri. For example /somepath/somemorepath/someresource.foo
  - query
```
String query()
```
    Returns:
    
    the query part of the uri. For example someparam=32&someotherparam=x
  - host
```
String host()
```
    Returns:
    
    the request host. For HTTP2 it returns the :authority pseudo header otherwise it returns the Host header
  - bytesRead
```
long bytesRead()
```
    Returns:
    
    the total number of bytes read for the body of the request.
  - response
```
HttpServerResponse response()
```
    Returns:
    
    the response. Each instance of this class has an HttpServerResponse instance attached to it. This is used to send the response back to the client.
  - headers
```
MultiMap headers()
```
    Returns:
    
    the headers in the request.
  - getHeader
```
default String getHeader(String headerName)
```
    Return the first header value with the specified name
    
    Parameters:
    
    headerName - the header name
    
    Returns:
    
    the header value
  - getHeader
```
default String getHeader(CharSequence headerName)
```
    Return the first header value with the specified name
    
    Parameters:
    
    headerName - the header name
    
    Returns:
    
    the header value
  - params
```
MultiMap params()
```
    Returns:
    
    the query parameters in the request
  - getParam
```
default String getParam(String paramName)
```
    Return the first param value with the specified name
    
    Parameters:
    
    paramName - the param name
    
    Returns:
    
    the param value
  - remoteAddress
```
default SocketAddress remoteAddress()
```
    Returns:
    
    the remote address for this connection, possibly null (e.g a server bound on a domain socket). If useProxyProtocol is set to true, the address returned will be of the actual connecting client.
  - localAddress
```
default SocketAddress localAddress()
```
    Returns:
    
    the local address for this connection, possibly null (e.g a server bound on a domain socket) If useProxyProtocol is set to true, the address returned will be of the proxy.
  - sslSession
```
default SSLSession sslSession()
```
    Returns:
    
    SSLSession associated with the underlying socket. Returns null if connection is not SSL.
    
    See Also:
    
    SSLSession
  - peerCertificateChain
```
X509Certificate[] peerCertificateChain()
                                throws SSLPeerUnverifiedException
```
    Note: Java SE 5+ recommends to use javax.net.ssl.SSLSession#getPeerCertificates() instead of of javax.net.ssl.SSLSession#getPeerCertificateChain() which this method is based on. Use sslSession() to access that method.
    
    Returns:
    
    an ordered array of the peer certificates. Returns null if connection is not SSL.
    
    Throws:
    
    SSLPeerUnverifiedException - SSL peer's identity has not been verified.
    
    See Also:
    
    SSLSession.getPeerCertificateChain(), sslSession()
  - absoluteURI
```
String absoluteURI()
```
    Returns:
    
    the absolute URI corresponding to the the HTTP request
  - bodyHandler
```
default HttpServerRequest bodyHandler(Handler<Buffer> bodyHandler)
```
    Convenience method for receiving the entire request body in one piece.
    This saves the user having to manually setting a data and end handler and append the chunks of the body until the whole body received. Don't use this if your request body is large - you could potentially run out of RAM.
    
    Parameters:
    
    bodyHandler - This handler will be called after all the body has been received
  - body
```
default HttpServerRequest body(Handler<AsyncResult<Buffer>> handler)
```
    Same as body() but with an handler called when the operation completes
  - body
```
Future<Buffer> body()
```
    Convenience method for receiving the entire request body in one piece.
    This saves you having to manually set a dataHandler and an endHandler and append the chunks of the body until the whole body received. Don't use this if your request body is large - you could potentially run out of RAM.
    
    Returns:
    
    a future completed with the body result
  - netSocket
```
NetSocket netSocket()
```
    Get a net socket for the underlying connection of this request.
    This method must be called before the server response is ended.
    With CONNECT requests, a 200 response is sent with no content-length header set before returning the socket.
```
 server.requestHandler(req -> {
   if (req.method() == HttpMethod.CONNECT) {
     // Send a 200 response to accept the connect
     NetSocket socket = req.netSocket();
     socket.handler(buff -> {
       socket.write(buff);
     });
   }
   ...
 });
 
```
    For other HTTP/1 requests once you have called this method, you must handle writing to the connection yourself using the net socket, the server request instance will no longer be usable as normal. USE THIS WITH CAUTION! Writing to the socket directly if you don't know what you're doing can easily break the HTTP protocol.
    With HTTP/2, a 200 response is always sent with no content-length header set before returning the socket like in the CONNECT case above.
    Returns:
    
    the net socket
    
    Throws:
    
    IllegalStateException - when the socket can't be created
  - setExpectMultipart
```
HttpServerRequest setExpectMultipart(boolean expect)
```
    Call this with true if you are expecting a multi-part body to be submitted in the request. This must be called before the body of the request has been received
    
    Parameters:
    
    expect - true - if you are expecting a multi-part body
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - isExpectMultipart
```
boolean isExpectMultipart()
```
    Returns:
    
    true if we are expecting a multi-part body for this request. See setExpectMultipart(boolean).
  - uploadHandler
```
HttpServerRequest uploadHandler(Handler<HttpServerFileUpload> uploadHandler)
```
    Set an upload handler. The handler will get notified once a new file upload was received to allow you to deal with the file upload.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - formAttributes
```
MultiMap formAttributes()
```
    Returns a map of all form attributes in the request.
    Be aware that the attributes will only be available after the whole body has been received, i.e. after the request end handler has been called.
    setExpectMultipart(boolean) must be called first before trying to get the form attributes.
    
    Returns:
    
    the form attributes
  - getFormAttribute
```
String getFormAttribute(String attributeName)
```
    Return the first form attribute value with the specified name
    
    Parameters:
    
    attributeName - the attribute name
    
    Returns:
    
    the attribute value
  - upgrade
```
ServerWebSocket upgrade()
```
    Upgrade the connection to a WebSocket connection.
    This is an alternative way of handling WebSockets and can only be used if no WebSocket handler is set on the HttpServer, and can only be used during the upgrade request during the WebSocket handshake.
    
    Returns:
    
    the WebSocket
    
    Throws:
    
    IllegalStateException - if the current request cannot be upgraded, when it happens an appropriate response is sent
  - isEnded
```
boolean isEnded()
```
    Has the request ended? I.e. has the entire request, including the body been read?
    
    Returns:
    
    true if ended
  - customFrameHandler
```
HttpServerRequest customFrameHandler(Handler<HttpFrame> handler)
```
    Set a custom frame handler. The handler will get notified when the http stream receives an custom HTTP/2 frame. HTTP/2 permits extension of the protocol.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - connection
```
HttpConnection connection()
```
    Returns:
    
    the HttpConnection associated with this request
  - streamPriority
```
default StreamPriority streamPriority()
```
    Returns:
    
    the priority of the associated HTTP/2 stream for HTTP/2 otherwise null
  - streamPriorityHandler
```
HttpServerRequest streamPriorityHandler(Handler<StreamPriority> handler)
```
    Set an handler for stream priority changes
    This is not implemented for HTTP/1.x.
    
    Parameters:
    
    handler - the handler to be called when stream priority changes
  - getCookie
```
default Cookie getCookie(String name)
```
    Get the cookie with the specified name.
    
    Parameters:
    
    name - the cookie name
    
    Returns:
    
    the cookie
  - cookieCount
```
default int cookieCount()
```
    Returns:
    
    the number of cookieMap.
  - cookieMap
```
Map<String,Cookie> cookieMap()
```
    Returns:
    
    a map of all the cookies.

Interface HttpServerRequest

Method Summary

Methods inherited from interface io.vertx.core.streams.ReadStream

Method Detail

exceptionHandler

handler

pause

resume

fetch

endHandler

version

method

isSSL

scheme

uri

path

query

host

bytesRead

response

headers

getHeader

getHeader

params

getParam

remoteAddress

localAddress

sslSession

peerCertificateChain

absoluteURI

bodyHandler

body

body

netSocket

setExpectMultipart

isExpectMultipart

uploadHandler

formAttributes

getFormAttribute

upgrade

isEnded

customFrameHandler

connection

streamPriority

streamPriorityHandler

getCookie

cookieCount

cookieMap