...by Daniel Szego
"On a long enough timeline we will all become Satoshi Nakamoto.."
Daniel Szego

Friday, September 28, 2018

Fabric composer tips and tricks - revert transaction

Reverting a transaction is pretty easy in Hyperledger Fabric Composer, you just have to throw an error, like:

throw new Error('Error message');

If an error is thrown, the whole transaction is rolled back. However, surprisingly, the catch logic can be used to stop the exception propagation. If the exception is not propagated to the top, the transaction is not reverted.