google cloud platform - substring search in Conditional response

Question

I have created a simple Agent in Dialogflow CX. Before performing the next webhook call I want to check user-entered city is present in the $session.params.cities.

By referring to conditional response doc, I have used HAS (:) operator like below

if $session.params.cities : $session.params.city
 Validating the city name
else
 Invalid city
endif

Example values:

$session.params.cities = "A, B, C, D"

$session.params.city = "B"

But this is not working, it is entering to else case. According to the doc, it says The RHS is type casted to the same type as the LHS before comparing. How can I perform a substring search?

question from:https://stackoverflow.com/questions/66058452/substring-search-in-conditional-response

Answer 1

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