[Cppcms-users] CppCMS 1.x.x JSON object value empty/not exist

[Geert V. de V. <gee...@ba...>]

Hi,

I'm trying to use cppcms for a new project and use it for building a
RESTLike API for a device. The API will communicate with the JSON data
format.

When receiving JSON data from a client some fields of an object are
optional. I'm using json::value for handling this.
I use the get<T> function to fetch the fields but in case of a missing
field or invalid field data it throws an exception. Is it possible to
detect that the field is missing separately? So I can ignore missing
optional fields.

Tnx


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