As mentioned in this
document Dialogflow CX provides support in
Java,
Node.js and
Python. Where as Dialogflow ES provides support in
C#,
Go,
Java,
Node.js,
PHP,
Python and Ruby as indicated in this
document.
In case If you have any technical queries or think your issue is related to code, you can post at the
Stack Overflow or
Server Fault and a community of developers will assist you.
In case there are any technical issues or you would like to request any feature regarding Google Cloud Platform you can report it at the Public Issues by selecting the right component
here. If you need to select any project specific information please select the private component of the Public Issue so that the information is not visible to the public. After that a Google Cloud Platform support agent would assist you.
Please also note that Google Groups forum is meant for general discussion of the platform, not specific technical issues. You can find more info about Community Support Overview on Google Groups
here.