March 2019
Intermediate to advanced
636 pages
27h 50m
English
book
Blockchain Development with Hyperledger
by Salman A. Baset, Luc Desrosiers, Nitin Gaur, Petr Novotny
Content preview from Blockchain Development with Hyperledger
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Logging API
The SHIM package provides APIs for the chaincode to create and manage logging objects. The logs generated by these objects are integrated with peer logs.
The chaincode can create and use an arbitrary number of logging objects. Each logging object must have a unique name, which is used to prefix log records in the output and to distinguish the records of different logging objects and the SHIM. (Remember that the logging object name SHIM API is reserved and should not be used in chaincode.) Each logging object has set a logging severity level at which the log records will be sent to the output. Log records with the severity level CRITICAL always appear in the output. The following snippet lists the API functions to create and manage ...
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