RSong Proxy

A client facing REST layer to proxy RSong requests to RSongs Rholang contracts.

RSong is implemented as a combination of multiple microservices and their interactions. These microservices are:

• acq, this is the RSong Acquisition service responsible for Acquiring assets
• proxy, RSong Proxy provides RChain rnode REST layer
• microbatch, tbd

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system

Prerequisites

Installs

• sbt
• JDK8
• docker

clone and build the project

git clone git@github.com:rchain/rsong.git
cd rsong
sbt compile 

Running the project locally

To run the project locally:

• set the environment variables
• run the docker

Alternatively you may build and run the project from source code.

Environment variables

To run the project locally, configure your environment variables:

##
export LOCAL_GRPC='localhost'
export GCP_GRPC='dd.dd.dd.dd'
export AWS_GRPC='dd.dd.dd.dd'
export DOCKER_GRPC='172.17.0.2'
export HTTP_PORT=9000
export GRPC_SERVER=$LOCAL_GRPC
export GRPC_PORT_INTERNAL=40404
export GRPC_PORT_EXTERNAL=40401
export PRD_K8='http://prd-rchain.com'
export DEV_K8='http://dev-rchain.com'
export LOCAL_K8='http://localhost'
export HOST_URL=$LOCAL_K8

You may consider using direnv to manage projects environment variables

Run the docker image

Circle CI build process publishes the rsong-proxy docker image to docker hub. To run the image:

sccripts/docker-run.sh

Running the Source code

sbt clean compile run
## to create a local dokcer image
sbt clean compile docker:stage docker:publishLocal
docker images | grep 'rsong-proxy'

Running tests:

tests are:

• unit tests
• integration tests

Unit tests

sbt clean test

Integration tests

• configure .envrc for both rsong-proxy and rsong-acquisition are configured for the same node instance
• execute rsong-acquisition to migrate the song data to node
• build rsong-proxy and run integration tests

Execute rsong-acquisition

cd ../rsong-acquisition
## make sure rsong-acquisition & rsong-proxy are using the same node
sbt clean compile universal:packageBin
cd target/universal && unzip ./rsong-acquisition-1.2-SNAPSHOT && cd rsong-acquisition-1.2-SNAPSHOT
./bin/rsong-acquisition

Execute rsong-proxy integration tests

Integration tests are run by the python script rsong-int-tests.py.
The scripts assumes requests is installed.

sbt clean compile run
## from a different terminal:
./scripts/rsong-int-tests.py localhost:9000

url Inventory

host='localhost:9000'

## create a new user 
curl -X POST $host/v1/user/<user_id>

## retrieve  user  object
curl  $host/v1/user/<user_id>

## retrive a user's song
curl -v  GET $host/v1/song/song1?userId=123 | jq

##  retrive user's songs
curl -v  GET $host/v1/song\?userId=user123\&perPage=10\&page=1 | jq

for asset urls, see output from:

curl GET $host/v1/song/song1?userId=123 | jq

Built With

circle-ci

Runtime env

• rnode
• rsong-proxy

rnode

rnode is build from the latest rchain dev branch deployed to GCP. This is a single instance at this time.

rsong-proxy

rsong-proxy runs on kubernetes-cluster on GCP See deployment-prd-spec for more detail

References

• docker-image
• Rholang
• RChain Cooperative
• http4s
• kubernetes
• direnv
• redis
• Google Cloud Platform, GCP