mirror of
https://github.com/twitter/the-algorithm.git
synced 2024-12-23 02:31:52 +01:00
45 lines
1.7 KiB
Markdown
45 lines
1.7 KiB
Markdown
|
# recos-injector
|
||
|
Recos-Injector is a streaming event processor for building input streams for GraphJet based services.
|
||
|
It is general purpose in that it consumes arbitrary incoming event stream (e.x. Fav, RT, Follow, client_events, etc), applies
|
||
|
filtering, combines and publishes cleaned up events to corresponding GraphJet services.
|
||
|
Each GraphJet based service subscribes to a dedicated Kafka topic. Recos-Injector enables a GraphJet based service to consume any
|
||
|
event it wants
|
||
|
|
||
|
## How to run recos-injector-server tests
|
||
|
|
||
|
Tests can be run by using this command from your project's root directory:
|
||
|
|
||
|
$ bazel build recos-injector/...
|
||
|
$ bazel test recos-injector/...
|
||
|
|
||
|
## How to run recos-injector-server in development on a local machine
|
||
|
|
||
|
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 of the available admin
|
||
|
endpoints.
|
||
|
|
||
|
## Querying recos-injector-server from a Scala console
|
||
|
|
||
|
Recos Injector does not have a thrift endpoint. It reads Event Bus and Kafka queues and writes to recos_injector kafka.
|
||
|
|
||
|
## Generating a package for deployment
|
||
|
|
||
|
To package your service into a zip for deployment:
|
||
|
|
||
|
$ bazel bundle recos-injector/server:bin --bundle-jvm-archive=zip
|
||
|
|
||
|
If successful, a file `dist/recos-injector-server.zip` will be created.
|