How to use eval with custom args

[alexeyknyshev]

For example, I have this lua script for determining name of box.space by id:

tnt.Eval("box.space." + spaceIdStr + ".name", []interface{}{})

It seems to be ugly and error prone way. So how can I pass some data to lua and how to use this data as lua varable(s)?

[mialinx]

1. define stored lua procedure in your init.lua (or another lua module) loaded in tarantool.
   For instance

function name2id(name)
   local id = 42
   return id  // result is scalar value here
end

2. use Call to get the result

resp, err := connection.Call("name2id", []interface{}{ "users" })
if err != nil {
  return err
}
uid := resp.Data[0].([]interface{})[0].(uint64)    // Data is table of 1 tuple of 1 element here

[alexeyknyshev]

Thx a lot