github.com/dialogs/dialog-push-service

Dialog push service

Dialog Push Service (DPS) is a tiny service for pushing remote notifications.

DPS consists of two sub-projects:

• gRPC server that does actual delivery
• Scala module for Dialog Server which provides Scala bindings to gRPC server

Getting Started

You need to install go, protobuf and gogo-protobuf extensions:

brew install go
brew install protobuf
go get github.com/gogo/protobuf/proto
go get github.com/gogo/protobuf/protoc-gen-gogoslick
go get github.com/gogo/protobuf/gogoproto

You also need to make sure the protoc-gen-gogoslick is in the $PATH.

Config

Legacy FCM HTTP

google:
  - project-id: <string>
    key: <string>
    retries: <number>
    timeout: <string>
    nop-mode: <boolean>
    workers: <number>
    allow-alerts: <boolean>
    sandbox: <boolean>

properties:

• project-id - identificator of the provider
• key
• retries - count retries by server error
• timeout - time duration. Example: 1s, 2m
• nop-mode - if the option is set to true, the message will not be sent
• workers - count workers for sending. By default the value is equal count of processors.
• allow-alerts - enabled alerting messages for converter protobuf push message to a notification message
• sandbox - if the option is set to true, the message will not be actually sent. Instead FCM performs all the necessary validations, and emulates the send operation

FCM HTTP v1 (GCM)

fcm:
  - project-id: <string>
    service-account: <string>
    retries: <number>
    timeout: <string>
    nop-mode: <boolean>
    workers: <number>
    allow-alerts: <boolean>
    sandbox: <boolean>

properties:

• project-id - identificator of the provider
• service-account
• retries - count retries by server error
• timeout - time duration. Example: 1s, 2m
• nop-mode - if the option is set to true, the message will not be sent
• workers - count workers for sending. By default the value is equal count of processors.
• allow-alerts - enabled alerting messages for converter protobuf push message to a notification message
• sandbox - if the option is set to true, the message will not be actually sent. Instead FCM performs all the necessary validations, and emulates the send operation

APNS

apple:
  - project-id: <string>
    pem: <string>
    retries: <number>
    timeout: <string>
    nop-mode: <boolean>
    workers: <number>
    allow-alerts: <boolean>
    sandbox: <boolean>

properties:

• project-id - identifier of the provider
• pem - path to tls certificate in pem format
• retries - count retries by server error
• timeout - time duration. Example: 1s, 2m
• nop-mode - if the option is set to true, the message will not be sent
• workers - count workers for sending. By default the value is equal count of processors.
• allow-alerts - enabled alerting messages for converter protobuf push message to a notification message
• topic - the topic of the remote notification, which is typically the bundle ID for your ap
• sound - sound of the alerting message

Test environment

• download iOS certificate in PEM format
• create environment variable APPLE_PUSH_CERTIFICATE with path to PEM
• download service-account.json
• create environment variable GOOGLE_APPLICATION_CREDENTIALS with path to service-account.json
• copy server key
• save server key in a file. File format:

{
  "key":"<server key>"
}

• create environment variable GOOGLE_LEGACY_APPLICATION_CREDENTIALS with path to server key file
• create devices tokens file. File format:

{
  "android": "<token>",
  "ios": "<token>"
}

• create environment variable PUSH_DEVICES with path to devices tokens file

Metrics

Metrics split by provider type and project identifier:

• processed_tasks -quantity of successfully sent push-notifications.
• failed_tasks - quantity of push-notifications with errors.
• io - time of sending push-notifications
• pushes_recv - quantity of push-notifications received from IP of a sender.

Client application

Android

Build and run:

• copy google-services.json to /pkg/test/app/android/app
• build application
• run android emulator

License

This software is available under the Apache 2.0 License