JSON.stringify doesn't work for external objects

[alveko]

When trying to call JSON.stringify(request), where request is an external object, the result is null.

[xeioex]

Hi @alveko,

You can use a helper function njs.dump() to see some details of the request object.

The problem with externals is that as of now, they are semi-Objects. It is not possible to use them interchangeably with native js Objects.

In the future I plan to get rid of the external type, converting the external prototypes to native Objects. But, that is not that easy.

[reyou]

Hello @xeioex ,

Sorry to bombard you with questions today, but how do we supposed to use njs.dump()?

I tried following ways, but could not figure out how to read content:

njs.dump();
req.error(njs.dump());
req.error(JSON.stringfy(njs.dump()));

Could you please help?

[xeioex]

@reyou,

njs.dump() is similar to JSON.stringify() but it is a bit more verbose (for example it can dump (== 'stringify') external objects like r)

For example you can return it as a body of the http reply:
r.return(200, njs.dump(r))

[reyou]

This works great, thanks a lot!

[xeioex]

closed as duplicate of #16

[xeioex]

Since 0fa4360 (0.3.8), JSON.stringify() for externals is supported.