fabric-samples/off_chain_data/application-go
Stanislav Jakuschevskij 06c7445e91
Replace panic with error handling
Starting from the processor.Block.Process all methods now return errors
if something goes wrong with unpacking of the blocks and reading the
transactions. In each function where the error is being propagated back
to client it is wrapped in a message with the function name. This makes
it easier to track down the error and see the propagation chain. Finally
the error is logged to the terminal and the go routine shuts down
gracefully. The graceful shutdown executes all deferred functions which
close the context, the checkpointer and the gateway.

Before panics were used everywhere which was an issue because the
unpacking of the blocks happened in a go routine. When a panic happens
in a go routine only the deferred functions of the go routine are called
but not those of the client which lead to unexpected behavior.

The transact function is also executed in a go routine therefore the
same typo of error handling was implemented there.

Signed-off-by: Stanislav Jakuschevskij <stas@two-giants.com>
2025-02-24 13:14:48 +01:00
..
contract Replace panic with error handling 2025-02-24 13:14:48 +01:00
parser Replace panic with error handling 2025-02-24 13:14:48 +01:00
processor Replace panic with error handling 2025-02-24 13:14:48 +01:00
store Replace panic with error handling 2025-02-24 13:14:48 +01:00
utils Replace panic with error handling 2025-02-24 13:14:48 +01:00
app.go Implement caching 2025-02-24 13:14:47 +01:00
connect.go Extract block processor and store from listener 2025-02-24 13:14:47 +01:00
getAllAssets.go Replace panic with error handling 2025-02-24 13:14:48 +01:00
go.mod Encapsulate block parser in a package 2025-02-24 13:14:47 +01:00
go.sum Encapsulate block parser in a package 2025-02-24 13:14:47 +01:00
listen.go Replace panic with error handling 2025-02-24 13:14:48 +01:00
transact.go Replace panic with error handling 2025-02-24 13:14:48 +01:00