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Virtual TestNets
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The Graph

The Graph and Virtual TestNets

This guide provides detailed steps to set up and use Tenderly Virtual Testnets alongside The Graph.

To use The Graph with Virtual TestNets, you need to run your own Graph node. In case you’re staging your dapp, you’ll have to have The Graph instance hosted on your cloud provider of choice.

Prerequisites

Ensure you have the following prerequisites installed on your system:

Set up The Graph

Install Graph CLI Globally

Install the Graph CLI globally on your system using npm:

npm install -g @graphprotocol/graph-cli

Refer to the official Graph CLI documentation for more details.

Set up The Graph project

Inside your project directory, initialize The Graph project.

Notes:

  • Adapt --abi to point to contrac ABI on your local system
  • Modify the --contract-name and --from-contract with contract name and address, respectively
  • Set he --start-block
  • Change the --network so it references the network you based your Virtual TestNet off of (e.g. mainnet, base, etc.).

We recommend having network match the original network’s name, without labeling it as virtual_. This enables effortless switching of RPCs when deploying to different staging and demoing environments.

graph init your-subgraph-name subgraph-dir \
--protocol ethereum \
--studio \
--abi path/to/abi/ERC20Token.json \
--contract-name ERC20TokenFactory \
--from-contract 0x7F2Fa32C991fD2F8dF3EB23C394f550376e9b30d \
--start-block 0 \
--network mainnet
Graph Initialization documentation

Update docker-compose.yml

Edit the docker-compose.yml file (below) and update environment.ethereum so it refers to the Virtual TestNet RPC.

version: '3'
services:
  graph-node:
    image: graphprotocol/graph-node
    ports:
      - '8020:8020'
      - '8000:8000'
      - '5001:5001'
    environment:
      postgres_host: postgres
      postgres_user: graph-node
      postgres_pass: let-me-in
      postgres_db: graph-node
      ipfs: 'ipfs:5001'
      ethereum: 'mainnet:https://virtual.mainnet.rpc.tenderly.co/d0a6...-40..2c-81..0f-a5..90'
Graph Docker documentation

Run Docker Compose locally

After setting up docker-compose config, run the following:

docker-compose up

Create and deploy your subgraph

Run the following commands, replacing your-subgraph-name with the desired name for your subgraph.

graph codegen
graph create --node http://localhost:8020 your-subgraph-name
graph deploy --node http://localhost:8020 --ipfs http://localhost:5001 your-subgraph-name
Graph Deployment documentation

Access the subgraph

After deployment, access your subgraph through the URL below. Open this URL in your browser to access the subgraph and run queries.

Deployed to http://localhost:8000/subgraphs/name/your-subgraph-name
Graph Query documentation

Deploy to Cloud

For dapp staging, deploy The Graph node your cloud provider of choice, and connect your dapp UI/backend to that node for querying.

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