Recos-Injector is a streaming event processor used to build input streams for GraphJet-based services. It is a general-purpose tool that consumes arbitrary incoming event streams (e.g., Fav, RT, Follow, client_events, etc.), applies filtering, and combines and publishes cleaned up events to corresponding GraphJet services. Each GraphJet-based service subscribes to a dedicated Kafka topic, and Recos-Injector enables GraphJet-based services to consume any event they want.
You can run tests by using the following command from your project's root directory:
$ bazel build recos-injector/...
$ bazel test recos-injector/...
The simplest way to stand up a service is to run it locally. To run
recos-injector-server in development mode, compile the project and then
execute it with bazel run:
$ bazel build recos-injector/server:bin
$ bazel run recos-injector/server:bin
A tunnel can be set up in order for downstream queries to work properly.
Upon successful server startup, try to curl its admin endpoint in another
terminal:
$ curl -s localhost:9990/admin/ping
pong
Run curl -s localhost:9990/admin to see a list of all available admin endpoints.
Recos-Injector does not have a Thrift endpoint. Instead, it reads Event Bus and Kafka queues and writes to the Recos-Injector Kafka.
To package your service into a zip file for deployment, run:
$ bazel bundle recos-injector/server:bin --bundle-jvm-archive=zip
If the command is successful, a file named dist/recos-injector-server.zip will be created.