io.micronaut.http.client

Interface HttpClient

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable, LifeCycle<HttpClient>

All Known Subinterfaces:

StreamingHttpClient

All Known Implementing Classes:

DefaultHttpClient

public interface HttpClient
extends java.io.Closeable, LifeCycle<HttpClient>

A non-blocking HTTP client interface designed around the Micronaut API and Reactive Streams.

Since:

1.0

Author:

Graeme Rocher

Field Summary

Fields

Modifier and Type	Field and Description
static Argument<JsonError>	DEFAULT_ERROR_TYPE The default error type.

Method Summary

Modifier and Type	Method and Description
static HttpClient	create(java.net.URL url) Create a new HttpClient.
static HttpClient	create(java.net.URL url, HttpClientConfiguration configuration) Create a new HttpClient with the specified configuration.
default <I> org.reactivestreams.Publisher<HttpResponse<ByteBuffer>>	exchange(HttpRequest<I> request) Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher.
default <I,O> org.reactivestreams.Publisher<HttpResponse<O>>	exchange(HttpRequest<I> request, Argument<O> bodyType) Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.
<I,O,E> org.reactivestreams.Publisher<HttpResponse<O>>	exchange(HttpRequest<I> request, Argument<O> bodyType, Argument<E> errorType) Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.
default <I,O> org.reactivestreams.Publisher<HttpResponse<O>>	exchange(HttpRequest<I> request, java.lang.Class<O> bodyType) Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.
default org.reactivestreams.Publisher<HttpResponse<ByteBuffer>>	exchange(java.lang.String uri) Perform an HTTP GET request for the given request object emitting the full HTTP response from returned Publisher.
default <O> org.reactivestreams.Publisher<HttpResponse<O>>	exchange(java.lang.String uri, java.lang.Class<O> bodyType) Perform an HTTP GET request for the given request object emitting the full HTTP response from returned Publisher.
default HttpClient	refresh() Refreshes the current life cycle object.
default <I> org.reactivestreams.Publisher<java.lang.String>	retrieve(HttpRequest<I> request) Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.
default <I,O> org.reactivestreams.Publisher<O>	retrieve(HttpRequest<I> request, Argument<O> bodyType) Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.
default <I,O,E> org.reactivestreams.Publisher<O>	retrieve(HttpRequest<I> request, Argument<O> bodyType, Argument<E> errorType) Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.
default <I,O> org.reactivestreams.Publisher<O>	retrieve(HttpRequest<I> request, java.lang.Class<O> bodyType) Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.
default org.reactivestreams.Publisher<java.lang.String>	retrieve(java.lang.String uri) Perform an HTTP GET request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.
BlockingHttpClient	toBlocking()

Methods inherited from interface io.micronaut.context.LifeCycle

close, isRunning, start, stop

Field Detail

DEFAULT_ERROR_TYPE

static final Argument<JsonError> DEFAULT_ERROR_TYPE

The default error type.

Method Detail

toBlocking

BlockingHttpClient toBlocking()

Returns:

A blocking HTTP client suitable for testing and non-production scenarios.

exchange

<I,O,E> org.reactivestreams.Publisher<HttpResponse<O>> exchange(@NonNull
                                                                HttpRequest<I> request,
                                                                @NonNull
                                                                Argument<O> bodyType,
                                                                @NonNull
                                                                Argument<E> errorType)

Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.

This method will send a Content-Length header and except a content length header the response and is designed for simple non-streaming exchanges of data

By default the exchange Content-Type is application/json, unless otherwise specified in the passed HttpRequest

Type Parameters:

I - The request body type

O - The response body type

E - The error type

Parameters:

request - The HttpRequest to execute

bodyType - The body type

errorType - The error type

Returns:

A Publisher that emits the full HttpResponse object

exchange

default <I,O> org.reactivestreams.Publisher<HttpResponse<O>> exchange(@NonNull
                                                                      HttpRequest<I> request,
                                                                      @NonNull
                                                                      Argument<O> bodyType)

Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.

This method will send a Content-Length header and except a content length header the response and is designed for simple non-streaming exchanges of data

By default the exchange Content-Type is application/json, unless otherwise specified in the passed HttpRequest

Type Parameters:

I - The request body type

O - The response body type

Parameters:

request - The HttpRequest to execute

bodyType - The body type

Returns:

A Publisher that emits the full HttpResponse object

exchange

default <I> org.reactivestreams.Publisher<HttpResponse<ByteBuffer>> exchange(@NonNull
                                                                             HttpRequest<I> request)

Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher.

Type Parameters:

I - The request body type

Parameters:

request - The HttpRequest to execute

Returns:

A Publisher that emits the full HttpResponse object

exchange

default org.reactivestreams.Publisher<HttpResponse<ByteBuffer>> exchange(@NonNull
                                                                         java.lang.String uri)

Perform an HTTP GET request for the given request object emitting the full HTTP response from returned Publisher.

Parameters:

uri - The Uri

Returns:

A Publisher that emits the full HttpResponse object

exchange

default <O> org.reactivestreams.Publisher<HttpResponse<O>> exchange(@NonNull
                                                                    java.lang.String uri,
                                                                    @NonNull
                                                                    java.lang.Class<O> bodyType)

Perform an HTTP GET request for the given request object emitting the full HTTP response from returned Publisher.

Type Parameters:

O - The response body type

Parameters:

uri - The request URI

bodyType - The body type

Returns:

A Publisher that emits the full HttpResponse object

exchange

default <I,O> org.reactivestreams.Publisher<HttpResponse<O>> exchange(@NonNull
                                                                      HttpRequest<I> request,
                                                                      @NonNull
                                                                      java.lang.Class<O> bodyType)

Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.

Type Parameters:

I - The request body type

O - The response body type

Parameters:

request - The HttpRequest to execute

bodyType - The body type

Returns:

A Publisher that emits the full HttpResponse object

retrieve

default <I,O,E> org.reactivestreams.Publisher<O> retrieve(@NonNull
                                                          HttpRequest<I> request,
                                                          @NonNull
                                                          Argument<O> bodyType,
                                                          @NonNull
                                                          Argument<E> errorType)

Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.

Type Parameters:

I - The request body type

O - The response body type

E - The error type

Parameters:

request - The HttpRequest to execute

bodyType - The body type

errorType - The error type

Returns:

A Publisher that emits a result of the given type

retrieve

default <I,O> org.reactivestreams.Publisher<O> retrieve(@NonNull
                                                        HttpRequest<I> request,
                                                        @NonNull
                                                        Argument<O> bodyType)

Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.

Type Parameters:

I - The request body type

O - The response body type

Parameters:

request - The HttpRequest to execute

bodyType - The body type

Returns:

A Publisher that emits a result of the given type

retrieve

default <I,O> org.reactivestreams.Publisher<O> retrieve(@NonNull
                                                        HttpRequest<I> request,
                                                        @NonNull
                                                        java.lang.Class<O> bodyType)

Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.

Type Parameters:

I - The request body type

O - The response body type

Parameters:

request - The HttpRequest to execute

bodyType - The body type

Returns:

A Publisher that emits a result of the given type

retrieve

default <I> org.reactivestreams.Publisher<java.lang.String> retrieve(@NonNull
                                                                     HttpRequest<I> request)

Perform an HTTP request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.

Type Parameters:

I - The request body type

Parameters:

request - The HttpRequest to execute

Returns:

A Publisher that emits String result

retrieve

default org.reactivestreams.Publisher<java.lang.String> retrieve(@NonNull
                                                                 java.lang.String uri)

Perform an HTTP GET request for the given request object emitting the full HTTP response from returned Publisher and converting the response body to the specified type.

Parameters:

uri - The URI

Returns:

A Publisher that emits String result

refresh

default HttpClient refresh()

Description copied from interface: LifeCycle

Refreshes the current life cycle object. Effectively this calls LifeCycle.stop() followed by LifeCycle.start().

Specified by:

refresh in interface LifeCycle<HttpClient>

Returns:

This lifecycle component

create

static HttpClient create(@Nullable
                         java.net.URL url)

Create a new HttpClient. Note that this method should only be used outside of the context of a Micronaut application. The returned HttpClient is not subject to dependency injection. The creator is responsible for closing the client to avoid leaking connections. Within a Micronaut application use Inject to inject a client instead.

Parameters:

url - The base URL

Returns:

The client

create

static HttpClient create(@Nullable
                         java.net.URL url,
                         @NonNull
                         HttpClientConfiguration configuration)

Create a new HttpClient with the specified configuration. Note that this method should only be used outside of the context of an application. Within Micronaut use Inject to inject a client instead

Parameters:

url - The base URL

configuration - the client configuration

Returns:

The client

Since:

2.2.0