R plumber APIs: How do I specify input types?-CodePudding

I have a plumber API.

#* API title
#* @param param1
#*
#* @post /method_name
function(x) x

The default behaviour is to convert param1 to a string, then I would need to use as.numeric(x) in the function body. Is there a way to specify the input type of each parameter? And if I have 40 parameters, all of which are numeric, is there a way to specify every parameter as numeric?

CodePudding user response：

You can set the type for a specific parameter using param:type. Let's say you want param1 to be an integer, then we can do:

#* API title
#* @param param1:int
#*
#* @post /method_name
function(x) x

I'm unaware of how to specify 40 parameters in an automated way that isn't just #* @param paramx:int repeated for x from 1 to 40. You can see the details on type in the annotations documentation for plumber.