org.fisco.bcos.web3j.protocol.Web3jService Maven / Gradle / Ivy
package org.fisco.bcos.web3j.protocol;
import java.io.IOException;
import java.util.concurrent.CompletableFuture;
import io.reactivex.Flowable;
import org.fisco.bcos.web3j.protocol.core.Request;
import org.fisco.bcos.web3j.protocol.core.Response;
import org.fisco.bcos.web3j.protocol.websocket.events.Notification;
/**
* Services API.
*/
public interface Web3jService {
T send(
Request request, Class responseType) throws IOException;
CompletableFuture sendAsync(
Request request, Class responseType);
/**
* Subscribe to a stream of notifications. A stream of notifications is opened by
* by performing a specified JSON-RPC request and is closed by calling
* the unsubscribe method. Different WebSocket implementations use different pair of
* subscribe/unsubscribe methods.
*
* This method creates an Flowable that can be used to subscribe to new notifications.
* When a client unsubscribes from this Flowable the service unsubscribes from
* the underlying stream of events.
*
* @param request JSON-RPC request that will be send to subscribe to a stream of
* events
* @param unsubscribeMethod method that will be called to unsubscribe from a
* stream of notifications
* @param responseType class of incoming events objects in a stream
* @param type of incoming event objects
* @return a {@link Flowable} instance that emits incoming events
*/
> Flowable subscribe(
Request request,
String unsubscribeMethod,
Class responseType);
/**
* Closes resources used by the service.
*
* @throws IOException thrown if a service failed to close all resources
*/
void close() throws IOException;
}