I am using Ruby and the Unirest Gem 1.1.2. I am using the provided code snippet:

response = Unirest.post “https://territorial-pedagio-v1.p.mashape.com/json/”,
headers:{
“X-Mashape-Key” => “HERE I USE MY APPLICATION KEY”,
“Content-Type” => “application/json”,
“Accept” => “application/json”
}
"{“jsonrpc”:“2.0”,“method”:“tollbooth.route”,“params”:[{“from_cord”:"(#{start[‘lat’]}, #{start[‘lng’]})",“dest_cord”:"(#{destination[‘lat’]}, #{destination[‘lng’]})",“tipo_veic”:“auto2eixos”}],“id”:“jsonrpc”}"

But I always get: ‘"Missing Mashape application key.’ I tried both, development and production keys.