getPartyDetails API

Questions
,
1

Hi there,

I’m trying to fetch a details from the damlhub Ledger and fails with UNAVAILABLE on the ListKnownPartiesResponse command below:

The host:port are ok since i’m able to connect to the Ledger

private void getPartyDetails(String partyToCheck){

        String host = damlProperties.getHostIp();
        int port = Integer.valueOf(damlProperties.getHostPort());

        // create a stub for the PackageManagementService
        //Channel channel = ManagedChannelBuilder.forAddress(host, port).usePlaintext().build();

        Channel channel  = null;
        try {
            channel = NettyChannelBuilder
                    .forAddress(host, port)
                    .negotiationType(NegotiationType.TLS)
                    .sslContext(GrpcSslContexts.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build())
                    .build();

        } catch (SSLException e) {
            e.printStackTrace();
        }

        PartyManagementServiceGrpc.PartyManagementServiceBlockingStub pms = PartyManagementServiceGrpc.newBlockingStub(channel);

        // query the ledger for parties
        PartyManagementServiceOuterClass.ListKnownPartiesResponse parties = pms.listKnownParties(PartyManagementServiceOuterClass.ListKnownPartiesRequest.newBuilder().build());

        // check whether party exists
        Optional<PartyManagementServiceOuterClass.PartyDetails> partyDetails = parties.getPartyDetailsList().stream()
                .filter(p -> p.getParty().equals(partyToCheck))
                .findAny();

        // create party if needed and log the result
        Gson gson = new Gson();
        if(partyDetails.isPresent()) {
            System.out.println("Party found: " + gson.toJson(partyDetails.get()));
        } 

    }

Error:

Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
	at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:262) ~[grpc-stub-1.44.0.jar:1.44.0]
	at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:243) ~[grpc-stub-1.44.0.jar:1.44.0]
	at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:156) ~[grpc-stub-1.44.0.jar:1.44.0]
	at com.daml.ledger.api.v1.admin.PartyManagementServiceGrpc$PartyManagementServiceBlockingStub.listKnownParties(PartyManagementServiceGrpc.java:474) ~[bindings-java-2.0.0.jar:na]
	at com.sorintegrations.customerpolicyrequest.CustomerPolicyClient.getPartyDetails(CustomerPolicyClient.java:343) ~[classes/:na]
	at com.sorintegrations.customerpolicyrequest.CustomerPolicyClient.sendCustomerPolicyRequest(CustomerPolicyClient.java:133) ~[classes/:na]
	at com.sorintegrations.customerpolicyrequest.CustomerPolicyRequestApplication.run(CustomerPolicyRequestApplication.java:28) ~[classes/:na]
	at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:777) ~[spring-boot-2.6.4.jar:2.6.4]
	... 10 common frames omitted
2

Hi @liav,

The PartyManagement service is not available on Hub at this time.

I’m actually not very familiar with the Hub product myself, so I’ll let others comment on why, and whether there’s any plan to change that in the future.

1 Like