firebase-cloud-messaging

Requirement

    compile('com.google.api-client:google-api-client:1.23.0')
    compile('com.google.firebase:firebase-admin:6.7.0')

Provider

• https://firebase.google.com/?hl=ko
• https://firebase.google.com/docs/cloud-messaging/?hl=ko

Protocol

• Firebase Http Legacy Protocol
• Firebase HttpV1 API

API

• java : HttpUrlConnection
• netty : Asynchronous framework
• firebase : Firebase API

Firebase Admin API, Google Library

• Topic Messaging : https://firebase.google.com/docs/cloud-messaging/android/topic-messaging?hl=ko
• Admin : https://firebase.google.com/docs/admin/setup?hl=ko

Google Instance ID

• InstanceID 별 2000개 까지 Topic 등록 가능
• Get Firebase Deatails App Instance Information with Instnace ID (IID)
• see : https://developers.google.com/instance-id/reference/server