Decode JSON with type convert from string to integer

[priyadarshan1995]

While using segmentio's json Unmarshaling to unmarshal data to a struct having
field *intjson:"Field,string" `
in its definition , I'm getting field as "null" instead of null if its not there in the data.

[achille-roussel]

Hello @priyadarshan1995, thanks for reporting the issue!

I'll look into the issue a little later today 👍

[achille-roussel]

Looking more into this, it appears this is a poorly documented behavior of the standard library, here is what the documentation says:

The "string" option signals that a field is stored as JSON inside a JSON-encoded string. It applies only to fields of string, floating point, integer, or boolean types. This extra level of encoding is sometimes used when communicating with JavaScript programs:

Pointers are not mentioned here.

I'll look into adapting our implementation to match the encoding/json package's behavior tho, it seems important to avoid breaking code that attempts to leverage this package.

[priyadarshan1995]

@achille-roussel Thanks!