json dump to help debugging

[bsr]

Hi,

Is there any library or code I can use to dump a go type (struct, pointer,..) for debugging purpose

My simple approach is below, but that occasionally get error like

Err: json.MarshalIndent(): json: unsupported type:util.TypeFn

because there could be fields which are not supported by json. In my case, it is ok to just skip that value, and show rest of the content, or say size, type of fields present.

so my intention is easy debugging, just to see the content during debugging and not cared about performance.

thanks.

```

//Dump dumps the value as json encoded

func Dump(v interface{}) string {

j, err := json.MarshalIndent(v, "", "\t")

if err != nil {

return "Err: json.MarshalIndent(): " + err.Error()

}

return string(j)

}

```

[Dave Cheney]

I think json is the wrong hammer for this task, its vocabulary is too limited.

Try fmt.Printf("%#v\n", ...)

There is also a pretty printer called go-spew. I haven't used it personally, but others recommend it highly.

Thanks

Dave

[bsr]

Thanks Dave, that indeed addressed my issue. Cheers.