1. #fabric-chaincode
  2. Question about invokeChaincode api

Question about invokeChaincode api #fabric-chaincode

BigBang019
 

Thank you guys so much, it's really helpful!
David F. D. Reis
 

Hi!

The chaincode has a unique identifier in the network when it is running. If a chaincode calls itself (another function) using invokeChaincode method, an error will occur.  You have to call the function directly without using invokeChaincode method. 

If a chaincode invokes another chaincode in the same channel, both calls will have their write sets appended to the transaction.

If a chaincode invokes another chaincode in another channel, it will be considered a query and no changes will be applied to the second chaincode state.

Best regards.

David




Em sex., 17 de dez. de 2021 às 08:24, BigBang019 <zhuxy0000@...> escreveu:

Environment: fabric release-2.2
My chaincode named vulnerable is as follows:


When I invoke helloworld directly, it gives me responce "helloworld", everything works fine.

But when I invoke invokeChaincode method, it gives me



and chaincode docker container logging is as follows:



It seems like
(1) the statement System.out.printf("\n%s\n", chaincodeName) works fine.
(2) org.hyperledger.fabric.shim.impl.InvocationStubImpl.invokeChaincode also finds the registered method helloworld, but it encountered another exception half way the invocation.

Does anyone met this problem before?
Thanks in advance.



--

BigBang019
 

Thanks for your attention: https://github.com/hyperledger/fabric-chaincode-java/issues/218
Matthew White
 

Hello;
 
Can I suggest that you raise an issue on the github  hyperledger/fabric-chaincode-java repo?
 
Though to check that you can call `helloworld()` directly from `invokeChaincode` without having to call invokeChaincode?  Pass on the ctx variable, and both methods are then part of the same transaction. 
 
Typically only use invokerChaincode, when you going to a completely different chaincode.
 
 
Regards, Matthew.
Matthew B White  IBM Blockchain Solutions Architect
 
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----- Original message -----
From: "BigBang019" <zhuxy0000@...>
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Cc:
Subject: [EXTERNAL] [Hyperledger Fabric] Question about invokeChaincode api #fabric-chaincode
Date: Fri, Dec 17, 2021 11:24 AM
 
Environment: fabric release-2.2 My chaincode named vulnerable is as follows: When I invoke helloworld directly, it gives me responce "helloworld", everything works fine. But when I invoke invokeChaincode method, it gives me and chaincode ZjQcmQRYFpfptBannerStart
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Environment: fabric release-2.2
My chaincode named vulnerable is as follows:


When I invoke helloworld directly, it gives me responce "helloworld", everything works fine.

But when I invoke invokeChaincode method, it gives me



and chaincode docker container logging is as follows:



It seems like
(1) the statement System.out.printf("\n%s\n", chaincodeName) works fine.
(2) org.hyperledger.fabric.shim.impl.InvocationStubImpl.invokeChaincode also finds the registered method helloworld, but it encountered another exception half way the invocation.

Does anyone met this problem before?
Thanks in advance.
 

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BigBang019
 

Environment: fabric release-2.2
My chaincode named vulnerable is as follows:


When I invoke helloworld directly, it gives me responce "helloworld", everything works fine.

But when I invoke invokeChaincode method, it gives me



and chaincode docker container logging is as follows:



It seems like
(1) the statement System.out.printf("\n%s\n", chaincodeName) works fine.
(2) org.hyperledger.fabric.shim.impl.InvocationStubImpl.invokeChaincode also finds the registered method helloworld, but it encountered another exception half way the invocation.

Does anyone met this problem before?
Thanks in advance.

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