Creates a message.
The URL uses Google API HTTP annotation syntax.
Required. Space resource name, in the form "spaces/*". Example: spaces/AAAAMpdlehY
Opaque thread identifier string that can be specified to group messages into a single thread. If this is the first message with a given thread identifier, a new thread is created. Subsequent messages with the same thread identifier will be posted into the same thread. This relieves bots and webhooks from having to store the Hangouts Chat
The request body contains an instance of
If successful, the response body contains a newly created instance of
Requires the following OAuth scope:
For more information, see the Auth Guide.