Packed inputs

By default, Smithy4s generates methods the parameters of which map to the fields of the input structure of the corresponding operation.

For instance :

service PackedInputsService {
  version: "1.0.0"
  operations: [PackedInputOperation]
}

operation PackedInputOperation {
  input: PackedInput
}

structure PackedInput {
    @required
    a: String
    @required
    b: String
}

leads to something conceptually equivalent to :

trait PackedInputServiceGen[F[_]] {

  def packedInputOperation(a: String, b: String): F[Unit]

}

It is however possible to annotate the service (or operation) definition with the smithy4s.meta#packedInputs trait, in order for the rendered method to contain a single parameter, typed with actual input case class of the operation.

For instance :

use smithy4s.meta#packedInputs

@packedInputs
service PackedInputsService {
  version: "1.0.0"
  operations: [PackedInputOperation]
}

will produce the following Scala code

trait PackedInputServiceGen[F[_]] {

  def packedInputOperation(input: PackedInput): F[Unit]

}