[Bug] The example code SyncRequestInstance in http.demo does not work fine

[mistyzyq]

Search before asking

• I had searched in the issues and found no similar issues.

Environment

Windows

EventMesh version

master

What happened

There may be missing some mcessary pareter configurations in the example, which causes the excample run failed.

In the main method of class org.apache.eventmesh.http.demo.pub.eventmeshmessage.SyncRequestInstance, the config of httpclient and producer are as below:

            EventMeshHttpClientConfig eventMeshClientConfig = EventMeshHttpClientConfig.builder()
                    .liteEventMeshAddr(eventMeshIPPort)
                    .producerGroup(ExampleConstants.DEFAULT_EVENTMESH_TEST_PRODUCER_GROUP)
                    .env("env")
                    .idc("idc")
                    .ip(IPUtils.getLocalAddress())
                    .sys("1234")
                    .pid(String.valueOf(ThreadUtils.getPID())).build();

            eventMeshHttpProducer = new EventMeshHttpProducer(eventMeshClientConfig);

            long startTime = System.currentTimeMillis();
            EventMeshMessage eventMeshMessage = EventMeshMessage.builder()
                    .bizSeqNo(RandomStringUtils.generateNum(30))
                    .content("contentStr with special protocal")
                    .topic(topic)
                    .pid(String.valueOf(ThreadUtils.getPID())).build();

When running this example, exceptions will be thrown in the eventmesh-runtime, and no response will be received here.
I have checked all the exceptions, by reading the exception report and debugging, all information indicate that:

1. "username" and "password" in the eventMeshClientConfig can not be null or empty, but is missing here;
2. the parameter "ttl" in eventMeshMessage is required, but is missing here.

I modified both of these codes with reference to the async sample code in AsyncPublishInstance, then it works fine.

How to reproduce

1. clone the master branch to local
2. start the eventmesh-runtime with the eventmesh-starter
3. start the eventmesh-examples, run main method in SyncRequestInstance of http.demo, and no response would be received.
4. if post request with curl, it would be blocked till timeout, with no response.

Debug logs

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

[mistyzyq]

The following code is modified by me with reference to the async case, and it works fine.
org.apache.eventmesh.http.demo.pub.eventmeshmessage.SyncRequestInstance#main()

            EventMeshHttpClientConfig eventMeshClientConfig = EventMeshHttpClientConfig.builder()
                    .liteEventMeshAddr(eventMeshIPPort)
                    .producerGroup(ExampleConstants.DEFAULT_EVENTMESH_TEST_PRODUCER_GROUP)
                    .env("env")
                    .idc("idc")
                    .ip(IPUtils.getLocalAddress())
                    .sys("1234")
                    .pid(String.valueOf(ThreadUtils.getPID()))
                    .userName("eventmesh")
                    .password("pass")
                    .build();

            eventMeshHttpProducer = new EventMeshHttpProducer(eventMeshClientConfig);

            long startTime = System.currentTimeMillis();
            EventMeshMessage eventMeshMessage = EventMeshMessage.builder()
                    .bizSeqNo(RandomStringUtils.generateNum(30))
                    .content("contentStr with special protocal")
                    .topic(topic)
                    .uniqueId(RandomStringUtils.generateNum(30))
                    .build()
                    .addProp(Constants.EVENTMESH_MESSAGE_CONST_TTL, String.valueOf(4 * 1000));

[mistyzyq]

The following code is modified by me with reference to the async case, and it works fine. org.apache.eventmesh.http.demo.pub.eventmeshmessage.SyncRequestInstance#main()

            EventMeshHttpClientConfig eventMeshClientConfig = EventMeshHttpClientConfig.builder()
                    .liteEventMeshAddr(eventMeshIPPort)
                    .producerGroup(ExampleConstants.DEFAULT_EVENTMESH_TEST_PRODUCER_GROUP)
                    .env("env")
                    .idc("idc")
                    .ip(IPUtils.getLocalAddress())
                    .sys("1234")
                    .pid(String.valueOf(ThreadUtils.getPID()))
                    .userName("eventmesh")
                    .password("pass")
                    .build();

            eventMeshHttpProducer = new EventMeshHttpProducer(eventMeshClientConfig);

            long startTime = System.currentTimeMillis();
            EventMeshMessage eventMeshMessage = EventMeshMessage.builder()
                    .bizSeqNo(RandomStringUtils.generateNum(30))
                    .content("contentStr with special protocal")
                    .topic(topic)
                    .uniqueId(RandomStringUtils.generateNum(30))
                    .build()
                    .addProp(Constants.EVENTMESH_MESSAGE_CONST_TTL, String.valueOf(4 * 1000));

There is a premise here, which is to fix the problems mentioned by the bug #2444 first.

[xwm1992]

has replyed under the #2444 @mistyzyq

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