ERC20 Token Subgraph - Balance and User Tracker Overview This project involves an ERC20 token subgraph that tracks token balances and user interactions. By utilizing The Graph, the subgraph allows for easy querying of token data, including real-time balance tracking for any Ethereum address holding the token.

Features Track User Balances: Provides real-time balance tracking for all token holders. Monitor User Interactions: Records all token transfers, enabling a historical overview of token movements. GraphQL Queries: Leverages GraphQL to query data efficiently and retrieve details about users and token balances. Prerequisites Node.js and npm installed A deployed ERC20 token smart contract Access to The Graph protocol Installation Clone the repository:

git clone https://github.com/Abidoyesimze/subgraph.git Install dependencies:

Copy code cd subgraph npm install Deploy the Subgraph:

Create a subgraph on The Graph Studio or Hosted Service. Update the subgraph's manifest (subgraph.yaml) with your ERC20 token contract address and ABI. Deploy the subgraph: bash Copy code graph deploy --node https://api.thegraph.com/deploy/your-subgraph-name Usage Query Token Holders: To get a list of all token holders and their balances:

graphql

{ tokenHolders { id balance } } Query Token Transfer Events: To retrieve all transfer events:

graphql

{ transferEvents { from to value } } Technologies Used Solidity: For the ERC20 token smart contract. The Graph: For indexing and querying blockchain data. GraphQL: To query indexed data from the subgraph. Hardhat: For local blockchain development and testing.