1type: google.api.Service 2config_version: 3 3name: fcmconnection.googleapis.com 4title: FCM Connection API 5 6apis: 7- name: google.firebase.fcm.connection.v1alpha1.ConnectionApi 8 9documentation: 10 summary: An API to connect clients to receive FCM messages. 11 overview: |- 12 The FCM Connection API allows developers’ client applications to create 13 long-lived bi-directional gRPC connections with FCM in order to receive & 14 send messages from/to their respective app servers. Historically, 15 developers could only send push notifications/messages to Android, iOS & 16 browsers. This API allows all gRPC supported client platforms to connect 17 to FCM. 18