The Serializer is in charge of routing payloads from the different parts of the agent to the Forwarder. The backend currently offers 2 versions of the intake API. The V1 version takes JSON payloads, the V2 take protocol buffer payloads or JSON depending on endpoint.

While moving all the existing endpoints to the new format, the agent will support both API. That is why the serializer is here to choose a serialization protocol depending on the content and use the correct Forwarder method.

To be sent, a payload needs to implement the Marshaler interface.