HttpRequest (Vert.x Stack - Docs 4.1.8 API)

Type Parameters:

T - the type of response body
```
public interface HttpRequest<T>
```
A client-side HTTP request.
Instances are created by an WebClient instance, via one of the methods corresponding to the specific HTTP methods such as WebClient.get(java.lang.String), etc...
The request shall be configured prior sending, the request is immutable and when a mutator method is called, a new request is returned allowing to expose the request in a public API and apply further customization.
After the request has been configured, the methods
can be called. The sendXXX methods perform the actual request, they can be called multiple times to perform the same HTTP request at different points in time.
The handler is called back with
- an HttpResponse instance when the HTTP response has been received
- a failure when the HTTP request failed (like a connection error) or when the HTTP response could not be obtained (like connection or unmarshalling errors)
Most of the time, this client will buffer the HTTP response fully unless a specific BodyCodec is used such as BodyCodec.create(Handler).
Author:

Julien Viet

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`HttpRequest<T>`	`addQueryParam(String paramName, String paramValue)` Add a query parameter to the request.
`<U> HttpRequest<U>`	`as(BodyCodec<U> responseCodec)` Configure the request to decode the response with the `responseCodec`.
`HttpRequest<T>`	`authentication(Credentials credentials)` Configure the request to perform HTTP Authentication.
`default HttpRequest<T>`	`basicAuthentication(Buffer id, Buffer password)` Configure the request to perform basic access authentication.
`default HttpRequest<T>`	`basicAuthentication(String id, String password)` Configure the request to perform basic access authentication.
`default HttpRequest<T>`	`bearerTokenAuthentication(String bearerToken)` Configure the request to perform bearer token authentication.
`HttpRequest<T>`	`copy()` Copy this request
`default HttpRequest<T>`	`expect(java.util.function.Function<HttpResponse<Void>,ResponsePredicateResult> predicate)` Add an expectation that the response is valid according to the provided `predicate`.
`HttpRequest<T>`	`expect(ResponsePredicate predicate)` Add an expectation that the response is valid according to the provided `predicate`.
`HttpRequest<T>`	`followRedirects(boolean value)` Set wether or not to follow the directs for the request.
`MultiMap`	`headers()`
`HttpRequest<T>`	`host(String value)` Configure the request to use a new host `value`.
`HttpRequest<T>`	`method(HttpMethod value)` Configure the request to use a new method `value`.
`HttpRequest<T>`	`multipartMixed(boolean allow)` Allow or disallow multipart mixed encoding when sending `MultipartForm` having files sharing the same file name.
`HttpRequest<T>`	`port(int value)` Configure the request to use a new port `value`.
`HttpRequest<T>`	`putHeader(String name, Iterable<String> value)` Configure the request to set a new HTTP header with multiple values.
`HttpRequest<T>`	`putHeader(String name, String value)` Configure the request to set a new HTTP header.
`HttpRequest<T>`	`putHeaders(MultiMap headers)` Configure the request to add multiple HTTP headers .
`MultiMap`	`queryParams()` Return the current query parameters.
`default Future<HttpResponse<T>>`	`send()`
`void`	`send(Handler<AsyncResult<HttpResponse<T>>> handler)` Send a request, the `handler` will receive the response as an `HttpResponse`.
`default Future<HttpResponse<T>>`	`sendBuffer(Buffer body)`
`void`	`sendBuffer(Buffer body, Handler<AsyncResult<HttpResponse<T>>> handler)` Like `send(Handler)` but with an HTTP request `body` buffer.
`default Future<HttpResponse<T>>`	`sendForm(MultiMap body)`
`void`	`sendForm(MultiMap body, Handler<AsyncResult<HttpResponse<T>>> handler)` Like `send(Handler)` but with an HTTP request `body` multimap encoded as form and the content type set to `application/x-www-form-urlencoded`.
`default Future<HttpResponse<T>>`	`sendForm(MultiMap body, String charset)`
`void`	`sendForm(MultiMap body, String charset, Handler<AsyncResult<HttpResponse<T>>> handler)` Like `send(Handler)` but with an HTTP request `body` multimap encoded as form and the content type set to `application/x-www-form-urlencoded`.
`default Future<HttpResponse<T>>`	`sendJson(Object body)`
`void`	`sendJson(Object body, Handler<AsyncResult<HttpResponse<T>>> handler)` Like `send(Handler)` but with an HTTP request `body` object encoded as json and the content type set to `application/json`.
`default Future<HttpResponse<T>>`	`sendJsonObject(JsonObject body)`
`void`	`sendJsonObject(JsonObject body, Handler<AsyncResult<HttpResponse<T>>> handler)` Like `send(Handler)` but with an HTTP request `body` object encoded as json and the content type set to `application/json`.
`default Future<HttpResponse<T>>`	`sendMultipartForm(MultipartForm body)`
`void`	`sendMultipartForm(MultipartForm body, Handler<AsyncResult<HttpResponse<T>>> handler)` Like `send(Handler)` but with an HTTP request `body` multimap encoded as form and the content type set to `multipart/form-data`.
`default Future<HttpResponse<T>>`	`sendStream(ReadStream<Buffer> body)`
`void`	`sendStream(ReadStream<Buffer> body, Handler<AsyncResult<HttpResponse<T>>> handler)` Like `send(Handler)` but with an HTTP request `body` stream.
`HttpRequest<T>`	`setQueryParam(String paramName, String paramValue)` Set a query parameter to the request.
`HttpRequest<T>`	`ssl(Boolean value)`
`HttpRequest<T>`	`timeout(long value)` Configures the amount of time in milliseconds after which if the request does not return any data within the timeout period an `TimeoutException` fails the request.
`HttpRequest<T>`	`uri(String value)` Configure the request to use a new request URI `value`.
`HttpRequest<T>`	`virtualHost(String value)` Configure the request to use a virtual host `value`.

- Method Detail
  - method
```
HttpRequest<T> method(HttpMethod value)
```
    Configure the request to use a new method value.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - port
```
HttpRequest<T> port(int value)
```
    Configure the request to use a new port value.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - as
```
<U> HttpRequest<U> as(BodyCodec<U> responseCodec)
```
    Configure the request to decode the response with the responseCodec.
    
    Parameters:
    
    responseCodec - the response codec
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - host
```
HttpRequest<T> host(String value)
```
    Configure the request to use a new host value.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - virtualHost
```
HttpRequest<T> virtualHost(String value)
```
    Configure the request to use a virtual host value.
    Usually the header host (:authority pseudo header for HTTP/2) is set from the request host value since this host value resolves to the server IP address.
    Sometimes you need to set a host header for an address that does not resolve to the server IP address. The virtual host value overrides the value of the actual host header (:authority pseudo header for HTTP/2).
    The virtual host is also be used for SNI.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - uri
```
HttpRequest<T> uri(String value)
```
    Configure the request to use a new request URI value.
    When the uri has query parameters, they are set in the queryParams() multimap, overwritting any parameters previously set.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - putHeaders
```
HttpRequest<T> putHeaders(MultiMap headers)
```
    Configure the request to add multiple HTTP headers .
    
    Parameters:
    
    headers - The HTTP headers
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - putHeader
```
HttpRequest<T> putHeader(String name,
                         String value)
```
    Configure the request to set a new HTTP header.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - putHeader
```
HttpRequest<T> putHeader(String name,
                         Iterable<String> value)
```
    Configure the request to set a new HTTP header with multiple values.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - headers
```
MultiMap headers()
```
    Returns:
    
    The HTTP headers
  - authentication
```
HttpRequest<T> authentication(Credentials credentials)
```
    Configure the request to perform HTTP Authentication.
    Performs a generic authentication using the credentials provided by the user. For the sake of validation safety it is recommended that Credentials.applyHttpChallenge(String) is called to ensure that the credentials are applicable to the HTTP Challenged received on a previous request that returned a 401 response code.
    
    Parameters:
    
    credentials - the credentials to use.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - basicAuthentication
```
default HttpRequest<T> basicAuthentication(String id,
                                           String password)
```
    Configure the request to perform basic access authentication.
    In basic HTTP authentication, a request contains a header field of the form 'Authorization: Basic <credentials>', where credentials is the base64 encoding of id and password joined by a colon.
    In practical terms the arguments are converted to a UsernamePasswordCredentials object.
    
    Parameters:
    
    id - the id
    
    password - the password
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - basicAuthentication
```
default HttpRequest<T> basicAuthentication(Buffer id,
                                           Buffer password)
```
    Configure the request to perform basic access authentication.
    In basic HTTP authentication, a request contains a header field of the form 'Authorization: Basic <credentials>', where credentials is the base64 encoding of id and password joined by a colon.
    In practical terms the arguments are converted to a UsernamePasswordCredentials object.
    
    Parameters:
    
    id - the id
    
    password - the password
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - bearerTokenAuthentication
```
default HttpRequest<T> bearerTokenAuthentication(String bearerToken)
```
    Configure the request to perform bearer token authentication.
    In OAuth 2.0, a request contains a header field of the form 'Authorization: Bearer <bearerToken>', where bearerToken is the bearer token issued by an authorization server to access protected resources.
    In practical terms the arguments are converted to a TokenCredentials object.
    
    Parameters:
    
    bearerToken - the bearer token
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - ssl
```
HttpRequest<T> ssl(Boolean value)
```
  - timeout
```
HttpRequest<T> timeout(long value)
```
    Configures the amount of time in milliseconds after which if the request does not return any data within the timeout period an TimeoutException fails the request.
    Setting zero or a negative value disables the timeout.
    
    Parameters:
    
    value - The quantity of time in milliseconds.
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - addQueryParam
```
HttpRequest<T> addQueryParam(String paramName,
                             String paramValue)
```
    Add a query parameter to the request.
    
    Parameters:
    
    paramName - the param name
    
    paramValue - the param value
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - setQueryParam
```
HttpRequest<T> setQueryParam(String paramName,
                             String paramValue)
```
    Set a query parameter to the request.
    
    Parameters:
    
    paramName - the param name
    
    paramValue - the param value
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - followRedirects
```
HttpRequest<T> followRedirects(boolean value)
```
    Set wether or not to follow the directs for the request.
    
    Parameters:
    
    value - true if redirections should be followed
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - expect
```
default HttpRequest<T> expect(java.util.function.Function<HttpResponse<Void>,ResponsePredicateResult> predicate)
```
    Add an expectation that the response is valid according to the provided predicate.
    Multiple predicates can be added.
    
    Parameters:
    
    predicate - the predicate
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - expect
```
HttpRequest<T> expect(ResponsePredicate predicate)
```
    Add an expectation that the response is valid according to the provided predicate.
    Multiple predicates can be added.
    
    Parameters:
    
    predicate - the predicate
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - queryParams
```
MultiMap queryParams()
```
    Return the current query parameters.
    
    Returns:
    
    the current query parameters
  - copy
```
HttpRequest<T> copy()
```
    Copy this request
    
    Returns:
    
    a copy of this request
  - multipartMixed
```
HttpRequest<T> multipartMixed(boolean allow)
```
    Allow or disallow multipart mixed encoding when sending MultipartForm having files sharing the same file name.
    The default value is true.
    Set to false if you want to achieve the behavior for HTML5.
    
    Parameters:
    
    allow - true allows use of multipart mixed encoding
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - sendStream
```
void sendStream(ReadStream<Buffer> body,
                Handler<AsyncResult<HttpResponse<T>>> handler)
```
    Like send(Handler) but with an HTTP request body stream.
    
    Parameters:
    
    body - the body
  - sendStream
```
default Future<HttpResponse<T>> sendStream(ReadStream<Buffer> body)
```
    Parameters:
    
    body - the body
    
    See Also:
    
    sendStream(ReadStream, Handler)
  - sendBuffer
```
void sendBuffer(Buffer body,
                Handler<AsyncResult<HttpResponse<T>>> handler)
```
    Like send(Handler) but with an HTTP request body buffer.
    
    Parameters:
    
    body - the body
  - sendBuffer
```
default Future<HttpResponse<T>> sendBuffer(Buffer body)
```
    Parameters:
    
    body - the body
    
    See Also:
    
    sendBuffer(Buffer, Handler)
  - sendJsonObject
```
void sendJsonObject(JsonObject body,
                    Handler<AsyncResult<HttpResponse<T>>> handler)
```
    Like send(Handler) but with an HTTP request body object encoded as json and the content type set to application/json.
    
    Parameters:
    
    body - the body
  - sendJsonObject
```
default Future<HttpResponse<T>> sendJsonObject(JsonObject body)
```
    Parameters:
    
    body - the body
    
    See Also:
    
    sendJsonObject(JsonObject, Handler)
  - sendJson
```
void sendJson(Object body,
              Handler<AsyncResult<HttpResponse<T>>> handler)
```
    Like send(Handler) but with an HTTP request body object encoded as json and the content type set to application/json.
    
    Parameters:
    
    body - the body
  - sendJson
```
default Future<HttpResponse<T>> sendJson(Object body)
```
    Parameters:
    
    body - the body
    
    See Also:
    
    sendJson(Object, Handler)
  - sendForm
```
void sendForm(MultiMap body,
              Handler<AsyncResult<HttpResponse<T>>> handler)
```
    Like send(Handler) but with an HTTP request body multimap encoded as form and the content type set to application/x-www-form-urlencoded.
    When the content type header is previously set to multipart/form-data it will be used instead.
    
    Parameters:
    
    body - the body
  - sendForm
```
default Future<HttpResponse<T>> sendForm(MultiMap body)
```
    Parameters:
    
    body - the body
    
    See Also:
    
    sendForm(MultiMap, Handler)
  - sendForm
```
void sendForm(MultiMap body,
              String charset,
              Handler<AsyncResult<HttpResponse<T>>> handler)
```
    Like send(Handler) but with an HTTP request body multimap encoded as form and the content type set to application/x-www-form-urlencoded.
    When the content type header is previously set to multipart/form-data it will be used instead. NOTE: the use of this method is strongly discouraged to use when the form is a application/x-www-form-urlencoded encoded form since the charset to use must be UTF-8.
    
    Parameters:
    
    body - the body
  - sendForm
```
default Future<HttpResponse<T>> sendForm(MultiMap body,
                                         String charset)
```
    Parameters:
    
    body - the body
    
    charset - the charset
    
    See Also:
    
    sendForm(MultiMap, String, Handler)
  - sendMultipartForm
```
void sendMultipartForm(MultipartForm body,
                       Handler<AsyncResult<HttpResponse<T>>> handler)
```
    Like send(Handler) but with an HTTP request body multimap encoded as form and the content type set to multipart/form-data. You may use this method to send attributes and upload files.
    
    Parameters:
    
    body - the body
  - sendMultipartForm
```
default Future<HttpResponse<T>> sendMultipartForm(MultipartForm body)
```
    Parameters:
    
    body - the body
    
    See Also:
    
    sendMultipartForm(MultipartForm, Handler)
  - send
```
void send(Handler<AsyncResult<HttpResponse<T>>> handler)
```
    Send a request, the handler will receive the response as an HttpResponse.
  - send
```
default Future<HttpResponse<T>> send()
```
    See Also:
    
    send(Handler)

Interface HttpRequest<T>

Method Summary

Method Detail

method

port

as

host

virtualHost

uri

putHeaders

putHeader

putHeader

headers

authentication

basicAuthentication

basicAuthentication

bearerTokenAuthentication

ssl

timeout

addQueryParam

setQueryParam

followRedirects

expect

expect

queryParams

copy

multipartMixed

sendStream

sendStream

sendBuffer

sendBuffer

sendJsonObject

sendJsonObject

sendJson

sendJson

sendForm

sendForm

sendForm

sendForm

sendMultipartForm

sendMultipartForm

send

send