discovery

Origin Discovery

This directory contains code for Origin discovery servers:

• src/listener: Server that listens to events emitted by Origin contracts and indexes them.
• src/apollo: GraphQL server for indexed data
• src/lib: library for indexing data in various backend. Currently Postgres and Elasticsearch are supported.

Discovery server

Refer to this README

Listener

Refer to this README

Running tests

For linting run:

lerna run lint --scope @origin/discovery

For unit tests run:

lerna run test --scope @origin/discovery

Local Development

Assuming you are starting from scratch, run the following from the root of the monorepo:

docker-compose up postgres elasticsearch redis-master

export DATABASE_URL=postgres://origin:origin@localhost/origin
export ELASTICSEARCH_HOST=localhost:9200
lerna run migrate --scope @origin/bridge
lerna run migrate --scope @origin/discovery
lerna run migrate --scope @origin/growth
lerna run migrate --scope @origin/identity

cd infra/discovery/
node devops/es-cli.js createIndex listings
npm run start:listener:development -- --network=localhost --verbose --marketplace --identity --elasticsearch --messaging-events
npm run start:discovery:development -- --network=localhost --verbose --marketplace --identity --elasticsearch

To reset database:

docker-compose down postgres && docker-compose up postgres

Troubleshooting

elasticsearch container fails with exit code 78

Run the following command to increase the value of vm.max_map_count

sudo sysctl -w vm.max_map_count=262144