How to deploy a USDC subgraph with The Graph CLI

This tutorial will gude you through creating and deploying a USDC (ERC-20) subgraph with The Graph CLI.

What you’ll need

• An Ormi Labs account  
• Graph CLI installed npm install -g @graphprotocol/graph-cli 
• node.js installed
• Git installed 
• The USDC contract on Ethereum mainnet: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48

Tip: USDC launched on Ethereum in Sept 2018; you can confirm addresses per chain in Circle’s docs if you ever target other networks.

Getting started

1. Go to the Ormi App and login.
2. From the dashboard, create an API key for deployments.

Keep this page open, we’ll need the API key to deploy a subgraph.

Running the subgraph CLI

Open your terminal and run The Graph CLI init flow:

graph init usdc-subgraph

When prompted:

1. Network: Ethereum Mainnet
2. Source: Smart contract: Ethereum
3. Subgraph slug: create your own name
4. Contract address: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
5. Contract name: create your own name
6. Start block: (optional but recommended)

Setting up the subgraph

cd <subgraph name>

graph codegen

graph build

Deploy the subgraph to 0xGraph

Return to your API page and copy the information to paste it in the API key section below.

graph deploy <graph-name> --node  https://subgraph.api.ormilabs.com/deploy --ipfs https://subgraph.api.ormilabs.com/ipfs --deploy-key <API key>

Track sync status

You can check syncing in the dashboard by going to the Subgraphs tab:

Find the GraphQL link

Click the URL button and a graphql link will pop up. Click the graphql link.

Query your USDC subgraph

query LatestTransfers {
  transfers(first: 5, orderBy: blockTimestamp, orderDirection: desc) {
    id
    from
    to
    blockTimestamp
  }
}

You’re all set up!

Next steps

⛶

How to query a subgraph

Learn how to run GraphQL queries to fetch smart contract data from deployed subgraphs.

🖳

How to monitor your subgraph

Learn how to monitor your subgraph syncing progress and logs after deployment.