Deploying Ocean subgraph

About Ocean subgraph

Ocean subgraph allows querying the datatoken, dataNFT, and all event information using GraphQL. Hosting the Ocean subgraph saves the cost and time required in querying the data directly from the blockchain. The steps in this tutorial will explain how to host Ocean subgraph for the EVM compatible chains supported by Ocean Protocol.

Prerequisites

  • A server for hosting Ocean subgraph. See this guide on creating a server.
  • Docker and Docker compose are installed. Click here to view guide on installing docker.

Create a working directory

mkdir ocean-subgraph
cd ocean-subgraph

Create a `.env` file

Copy the below content into the `.env` file and edit the values as needed.
.env
ETHEREUM_NODE_PROVIDER_API='rinkeby:https://rinkeby.infura.io/v3/${INFURA_PROJECT_ID}'

Create docker-compose file

docker-compose.yml
version: '3'
services:
graph-node:
image: graphprotocol/graph-node:v0.26.0
ports:
- '9000:8000'
- '8001:8001'
- '8020:8020'
- '8030:8030'
- '8040:8040'
depends_on:
- ipfs
- postgres
environment:
postgres_host: postgres
postgres_user: graph-node
postgres_pass: let-me-in
postgres_db: graph-node
ipfs: 'ipfs:5001'
ethereum: ${ETHEREUM_NODE_PROVIDER_API}
RUST_LOG: info
ipfs:
image: ipfs/go-ipfs:v0.4.23
ports:
- '5001:5001'
volumes:
- ./data/ipfs:/data/ipfs
postgres:
image: postgres
ports:
- '5432:5432'
command: ['postgres', '-cshared_preload_libraries=pg_stat_statements']
environment:
POSTGRES_USER: graph-node
POSTGRES_PASSWORD: let-me-in
POSTGRES_DB: graph-node
volumes:
- ./data/postgres:/var/lib/postgresql/data

Start Ocean subgraph

docker-compose \
-f docker-compose.yml
--env-file .env \
-d \
up