使用Parse将通知从Ruby On Rails推送到Android和IOS用户

Question

I'm building an application using Ruby On Rails. the app is supposed to push notifications to android and IOS user using Parse RESTfull api. i have tried to use parse-ruby-client but the documentation is poor and a don't get how it really works. i mean how to send a notification a specific user.

Answer 1

In order to send a notification to a specific user you first need to have channels for each user setup or query a specific installation. With parse and the rest api the easiest way I have found to send a notification to an individual user is to setup each user as a channel. When the user initially sets up the app on their device, I take either their username or email and use that as their channel. Then when I want to send a notification to a specific user I send to that channel.

In ruby to send to a channel you would use the following substituting your channel in place of Giants

data = { :alert => "This is a notification from Parse" }
push = Parse::Push.new(data, "Giants")
push.type = "ios"
push.save

For advanced targeting, for example, if you want to query a class and find iOS users with injury reports set to true you can use the following:

data = { :alert => "This is a notification from Parse" }
push = Parse::Push.new(data)
push.type = "ios"
query = Parse::Query.new(Parse::Protocol::CLASS_INSTALLATION).eq('injuryReports', true)
push.where = query.where
push.save

The push.type refers to the system type- iOS (ios), android (android), windows user (winrt or winphone).