Serving files & handling requests with Webrick on same port

Question

Hi I have a need to be able to receive requests from GitLab (body => JSON) as well as serve files on same port. I am trying to use Webrick for this purpose. I can do these separately.

To serve files I do:

server = WEBrick::HTTPServer.new(:Port => 3030, :DocumentRoot => '/')
server.start

To receive and process jSON I do:

server = WEBrick::HTTPServer.new(:Port => 3030, :DocumentRoot => '/')
server.mount_proc '/' do | req, res |
    Queue.new(req.body)
end

But I need this functionality combined, is there a way to do this with Webrick?

Answer 1

Yes, this is certainly possible with Webrick or any HTTP server. There will be two different HTTP actions depending on what the users wants to do, 1.) a GET request to serve the files or 2.) a POST request to process some JSON.

Here's a simple example to show you how to do both:

class Server < WEBrick::HTTPServlet::AbstractServlet
    def do_GET (request, response)
      puts "this is a get request"
    end

    def do_POST (request, response)
      puts "this is a post request who received #{request.body}"
    end
end

server = WEBrick::HTTPServer.new(:Port => 3030)

server.mount "/", Server

trap("INT") {
    server.shutdown
}

server.start

Once that is running you can test this by doing the following in a separate terminal window:

curl localhost:3030

output:

this is a get request
localhost - - [23/Apr/2015:06:39:20 EDT] "GET / HTTP/1.1" 200 0
- -> /

To test the POST request:

curl -d "{\"json\":\"payload\"}" localhost:3030

output:

this is a post request who received {"json":"payload"}
localhost - - [23/Apr/2015:06:40:07 EDT] "POST / HTTP/1.1" 200 0
- -> /