get Request Post Data
Returns post data sent with the request. Returns an error when no data was sent with the request.
Note: this function uses an input class, and constructing this class manually may lead to incompatibilities if the class's constructor arguments change in the future. For maximum compatibility, it is advised to use the overload of this function that directly takes the mandatory parameters as arguments, and the optional ones from a configuration lambda.
Returns post data sent with the request. Returns an error when no data was sent with the request.
Parameters
request Id
Identifier of the network request to get content for.