set parameters in EventInput in Dialogflow V2 API

Question

I desperatly try to set parameters in a

dialogflow.types.EventInput

in python.

This doc says the parameters need to be of type

Answer 1

Information in accepted answer is incorrect.

You don't have to provide default values.

You can reference event parameters directly in Value column of Parameters table.

To reference an event parameter in the parameter table or a response, use the following format: #event-name.parameter-name.

dialogflow docs

Therefore, putting #greetPerson.given-name in Value would be enough.

Answer 2

This is how I did this:

import dialogflow
from google.protobuf import struct_pb2

session_client = dialogflow.SessionsClient()
session = session_client.session_path(project_id, session_id)

parameters = struct_pb2.Struct()
parameters["given-name"] = 'Jeff'
parameters["last-name"] = 'Bridges'

query_input = {
    'event': {
        "name": "greetPerson",
        "parameters": parameters,
        "language_code": "de"
    }
}

response = session_client.detect_intent(
    session=session,
    query_input=query_input)

Note:
In dialogflow console, you must give default values of parameters as #even_name.parameter_name.
In this case for parameter given-name it would be #greetPerson.given-name and for last-name it would be #greetPerson.last-name.

Docs Reference:
We are using DetectIntent, in which we are using QueryInput, in which finally we are using EvenInput

Hope it helps.