Custom Unmarshal multi level map

[sbezverk]

Hello,

 

A bit of help would be much appreciated, here is the sample code: https://play.golang.org/p/FYEC7MwU1qQ

 

I need to Unmarshal 3 levels map. The information is stored this was as a json doc and there is no way to flatten it.  This sample code works but since UnmarshalJSON method of Level1 type is not pointer receiver, I do not get back into the main newly built map. If I change Level1’s UnmarshalJSON to a pointer receiver then line 63 generates a syntax error “invalid operation: cannot index l1 (variable of type *Level1)”

 

I would greatly appreciate some suggestions how to solve this problem.

 

Thank you

Serguei

 

 

[burak serdar]

On Wed, Jul 29, 2020 at 1:42 PM sbezverk <sbez...@gmail.com> wrote:
>
> Hello,
>
>
>
> A bit of help would be much appreciated, here is the sample code: https://play.golang.org/p/FYEC7MwU1qQ
>
>
>
> I need to Unmarshal 3 levels map. The information is stored this was as a json doc and there is no way to flatten it. This sample code works but since UnmarshalJSON method of Level1 type is not pointer receiver, I do not get back into the main newly built map. If I change Level1’s UnmarshalJSON to a pointer receiver then line 63 generates a syntax error “invalid operation: cannot index l1 (variable of type *Level1)”

I can't say I understand what's really going on here, but if your
problem is with UnmarshalJSON receiver, then:

https://play.golang.org/p/Fl5XRO1ngXE

>
>
>
> I would greatly appreciate some suggestions how to solve this problem.
>
>
>
> Thank you
>
> Serguei
>
>
>
>
>

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[sbezverk]

Thank you, I was suspecting that it was something simple I was missing.