Error Object Serialisation doesn't work

[khadija-zekraoui]

I'm just starting out using pino and I try to serialize error object but it doesn't work
this is the code I use:
const log = pino({ name: "pino", timestamp: pino.stdTimeFunctions.isoTime, level: "trace", serializers: { err: err => ({ type: err.type, message: err.message, stack: e.stack }) } })
Could you help me please?
Thanks

[mcollina]

How are you passing in an error?

[khadija-zekraoui]

I try to understand how pino works so I only write :
log.error(new Error('test'))

[mcollina]

The serializers only works if you prefix your object { err } would call the err serializer.

[khadija-zekraoui]

I see. In case of a real application how me can manage that as we don't have control of generated errores?

[mcollina]

I don't understand, who is calling the logger then?

[khadija-zekraoui]

I don't know how but in my application it logs also no explicite errores logs.
For example en my application I set
´´´ appState.reportingDatab.dni = stepContext.result; ```
which reportingDatab is undefined and it logs the error :

[mcollina]

If you don't know when something is logged I can't really help :(. Study your code.

[khadija-zekraoui]

Ok. Thanks for your help

[khadija-zekraoui]

I'm trying to understand how pino works, I look for documentation on internet but I found it difficult to find one which explains how to implement pino with code examples. If you know some links to help me, Could you give them to me please

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