client#broadcast has no support for optional channel described in the api

[richardwan]

https://zeropush.readme.io/v1.5/docs/broadcast
says there is an optional channel with a broadcast. but the client.rb file looks like it does not supply a channel. I could monkey-patch my code or take a stab at making a PR for this

[adamvduke]

Hey @richardwan,

The broadcast method on the client takes a hash of params and does the 'right' thing with them. If you pass a channel in the params it will get encoded correctly and the API will broadcast to only those devices. Your code should look something like the following:

require 'zero_push'

ZeroPush.auth_token = 'auth-token'
response = ZeroPush.broadcast(
  channel: 'channel-name',
  alert: "You've got mail!"
)
puts response.body
# => {"sent_count"=>2}

Does that make sense?