400 bad request in ruby but not curl

Question

I'm trying to make a https post request in ruby and it works in curl, but I get a 400 bad request in ruby and I'm having trouble figuring out why.

Heres the ruby code:

require 'rubygems'
require 'net/https'
require 'uri'
require 'json'

uri = URI.parse("https://api.parse.com/1/push")
http =  Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_NONE

req = Net::HTTP::Post.new(uri.host)
req['Content-Type'] = "application/json"
req['X-Parse-Application-Id'] = "abc123"
req['X-Parse-REST-API-Key'] = "abc123"

req.body = {:data => {:alert => "sup"}, :channels => ["notifications"]}.to_json

resp = http.start{|http| http.request(req)}

puts resp.inspect

This gives me a #<Net::HTTPBadRequest 400 BAD_REQUEST readbody=true> response.

But the curl equivalent works just fine:

curl -X POST \
  -H "X-Parse-Application-Id: abc123" \
  -H "X-Parse-REST-API-Key: abc123" \
  -H "Content-Type: application/json" \
  -d '{
    "channels": [
      "notifications"
    ],
    "data": {
      "alert": "sup?"
    }
  }' \
  https://api.parse.com/1/push

Any ideas what I'm doing wrong?

Answer 1

For me the problem was not making the request over SSL. Once I set the following line everything worked:

http.use_ssl = true

This wasn't the OPs problem, but I'm posting anyway because the error message is the same and this thread is one of the top google hits for the error.