How do I make panic use my structured logging format?

php Xiaobian Yuzai introduces you how to deal with panic when using structured logging format. Structured logging format is a method of recording log information in a structured way, which can help us better organize and analyze log data. When encountering a panic, we can use the following steps to process and record the panic information for subsequent analysis and troubleshooting. First, we need to define panic triggering conditions and processing mechanisms; second, we need to add appropriate panic processing logic to the code; finally, we can use structured logging format to record panic information for subsequent analysis and troubleshooting. Through the above steps, we can better handle and record panics and improve the stability and reliability of the system.

Question content

I would like to be able to just panic(err) and panic output in slog format for log aggregation.

I need the full output and stack trace of the panic nested in my log msg field.

Is it possible to do this without a lot of custom processing?

Workaround

You can log panics the easy way by setting the default logger to the slog logger. The disadvantage is that everything logged this way will be logged at the INFO level and will not include a stack trace.

<code>    slogger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
    slog.SetDefault(slogger)

    slogger.Info("just some info")
    log.Panic("unrecoverable error")
</code>

will output:

{"time":"2009-11-10T23:00:00Z","level":"INFO","msg":"just some info"}
{"time":"2009-11-10T23:00:00Z","level":"INFO","msg":"unrecoverable error"}
panic: unrecoverable error
...
<panic output>
...

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