WillemJiang commented on issue #298: GrpcTxEvent$Builder.setGlobalTxId:NullPointerException URL: https://github.com/apache/incubator-servicecomb-saga/issues/298#issuecomment-422297262 @yanwu12138 > I have two services for saga-client and saga-server. I call saga-server through saga-client, I just checked the code, it looks like you have SagaClientConsumer to send the request to the saga-server. I can see you already include the dependency of omega-transport-resttemplate, but you need to add the ServiceComb transport() https://gitee.com/yanwu0527/transaction-saga-demo/blob/master/saga-server/pom.xml#L169 to handle the transaction id headers
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