Newtonsoft – deserializing POCO objects that contain interfaces

Just a quick post here but hopefully helpful if you hit the same issue. If you are dealing with json serialization, newtonsoft is one of our goto options.

When deserializing json to poco’s, sometimes the structure of your poco’s require a bit of extra setup to play fair with newtonsoft. Consider the following objects:

So when this gets serialized, you’d end up with:

If you then try to deserialize:

then you will get an exception.

The solution is to setup a converter:

Which then gets passed into the deserialize call e.g.:

Then you can simply add as many InterfaceConverter’s as you need

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