rest-client in ruby on rails -multiple request

Question

I'm trying to build a web api in ruby on rails, I'm using rest-client gem. I have tried this code in order to get a response from multiple urls and display the responses together

 def index
   url =  (['http://example1','https://example2'])
   url.split(",")
   i = 0
  url.each do |i|
       render json: JSON.parse(RestClient::Request.execute( method: :get, url: url[i])), layout: nil
       end
    end
 end

but i get an error message "no implicit conversion of String into Integer"

Answer 1

The error is coming from this line, rather than url[i], use just i, as i is the url you are trying to access, as an example, to deal with the implicit conversion:

render json: JSON.parse(RestClient::Request.execute( method: :get, url: i)), layout: nil

But the core issue is rendering multiple times, this can be solved by getting the data you need first, and then render the array once at the end.

Like so:

def index
   url_list = ['http://example1','https://example2']
   responses = []
   url_list.each do |url|
       responses << JSON.parse(RestClient::Request.execute( method: :get, url: url))
   end
   render json: responses, layout: nil
end